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2009年11月24日星期二

Shares of global lithium supply by country

Most think there is enough lithium for hybrid boom

Don’t care about lithium supplies demanded to make the batteries for all those hybrids and electric vehicles on the way. Hp laptop battery There are dozens of the stuff–at least for the next decade. On the far side that, though, opinions differ.


The supply of lithium has been a topic of debate since automakers beginning adjust their sights on lithium ion batteries. Those batteries are seen as the key to making a practical electric car because they are lighter and more powerful than the nickel-metal hydride batteries used in today’s hybrids.


They’re still costly. And because the lithium ion batteries remain an emerging technology, questions linger about their life span, durability, and safety. But for now, lithium ion batteries remain the most likely energy source for electric vehicles.


Locating lithium


Shares of global lithium supply by country

General Motors Co., Toyota Motor Corp., Mitsubishi Motors Corp., Nissan Motor Co. and Daimler AG are among the automakers that plan to launch electric or plug-in hybrid vehicles by 2011. All plan to use lithium ion batteries. All, therefore, closely monitor the supply and price of lithium.


As demand for lithium ion batteries for laptops, cell phones, and now vehicles soared, HP Pavilion ZD7000 Battery, prices of lithium carbonate, a raw material used to produce lithium, raised to $5,500 a ton in 2008 from $2,000 in 2004, says Roskill Information Services, a metals and minerals research consulting firm. The jump came despite rising global output.


As prices climbed, analysts began studying the outlook for lithium. The question: Much as today’s drivers are hostage to scarce, increasingly costly oil, will tomorrow’s drivers be reliant on scarce, increasingly costly lithium?


Some of those studies, along with executives at battery companies, HP CGR-B1870AE Battery,
HP Pavilion ZD7000 Battery, HP PP2182D Battery, HP 338794-001 Battery, say worries about scarcity are overblown. They say the world has plenty of lithium to power electric and plug-in hybrid vehicles, in addition to consumer electronics.


Gerson Lehrman Group, a New York consulting firm, estimates that even if 500,000 cars powered by lithium ion batteries were produced in 2015, they would use less than 10 percent of last year’s global lithium output.


The calculation was based on a report that Nissan’s upcoming Leaf electric vehicle uses about 8.8 pounds of lithium in its battery pack. At the 2008 price cited above, the small amount of lithium needed for each car would come to $24–just a fraction of the total cost of an electric vehicle’s VGP-BPS2C battery, which can run as high as $10,000.


Gerson Lehrman says: HP PP2182D Battery “Oversupply might be a more pressing question than lithium availability.”


Chris Richter, an auto analyst with CLSA Asia-Pacific Markets in Tokyo, puts it another way. “Lithium is one of the more abundant elements in the Earth’s crust,” he says. “Of all the various problems with this technology, running out of lithium is not one of them.”


Neil Maguire, vice president of business development at Imara Corp., a lithium ion Latitude battery startup in Menlo Park, Calif., says supply is sufficient to meet near-term demand.


Beyond that, if the volume of electric vehicles soars so much that lithium supplies become an issue, older lithium ion batteries can be recycled for the raw materials in them, he says.


“We don’t worry about lithium availability,” Maguire says.


Mining companies are racing to boost lithium output and find new sources.


Global lithium production reached 22,800 tons in 2008, up from 13,000 tons in 2000, according to Roskill Information Services.


Adding capacity in China or tapping lithium reserves in new countries could add 10,000 tons of output by the early 2010s, Gerson Lehrman forecasts.

Trouble with lithium


But a 2008 report titled “The Trouble with Lithium 2,” by Meridian International Research, a renewable-energy think tank in France,HP 338794-001 Battery concluded that the world faces a shortage when vehicle demand is added to considerable consumer electronics demand.


“Realistic lithium production increases have no prospect of also meeting the demands of the entire product and propulsion revolution in the global automotive industry in the next decade,” the report said.


Estimates of global reserves vary. Meridian puts it at 4 million tons, far below the 20 million tons cited by some sources. The trick is finding deposits of high-quality lithium that are economically viable to extract.


Car batteries require about 100 times the amount of lithium used in a laptop computer battery, putting a strain on global deposits, says William Tahil, author of the Meridian report.


He concedes that increased lithium production can keep pace with electric-vehicle production in the low millions of units a year. But looking further into the future, Tahil says,HP CGR-B1870AE Battery,
HP Pavilion ZD7000 Battery, HP PP2182D Battery, HP 338794-001 Battery, there is not enough for a wholesale conversion of the entire world’s auto industry from internal-combustion engines to battery-powered electric motors.


“There’s enough for a niche market,” Tahil says, “but nothing close to enough for the mass market.”

digital camera battery

A digital camera battery is probably the most important digital camera accessory. Some digital cameras can consume power at an incredible rate, providing only a few hours of continuous shooting time before the battery is exhausted. Other cameras are famous for the long life of their digital camera battery which allows users to snap away with barely a thought to power consumption. It is important to know how you plan to use your camera and what kind of battery it needs.


There are two types of Digital Camera Battery. Hp laptop battery The most widely available digital camera battery is a standard AA-size battery. The other type is a rechargeable battery that is made by the manufacturer, otherwise known as a proprietary battery.


A proprietary digital camera battery offers the advantage of being lighter and more compact,HP 342661-001 Battery,, HP pavilion dv6000 Battery(hp dv6000 battery)
HP Pavilion dv8000 Battery(hp dv8000 battery), but they are often more expensive, making the prospect of buying one or two backup sets much less appealing.


The alkaline AA-size digital camera battery usually has a very short life - less than an hour in extreme cases - when used in a digital camera. This type of battery makes an acceptable emergency backup, especially if you are travelling with your camera. However, the Nickel Metal Hydride (NiMH) digital camera battery can be used instead of the alkaline ones with a Charger and this rechargeable digital camera battery has a substantially longer life at an affordable price.


Another type of AA-size battery is the non-rechargeable Lithium A1045 batteries and rechargeable Nickel Cadmium (NiCD) batteries. The lithium digital camera battery has a superior life to alkaline AA’s and offers good cold-weather performance but their price and non-rechargeable feature make them less useful than rechargeable NiMH batteries. It is also important to ensure that your camera can take a lithium digital camera battery. On the other hand, the NiCD digital camera battery offers the advantage of retaining their charge while unused, unlike NiMH cells, but have shorter lives and need to be discharged completely before recharging which could be very inconvenient.


The LCD screen of a digital camera is responsible for consuming the most power, HP 342661-001 Battery so it is worth only using the LCD when necessary to help save the battery life. Always try to carry at least one backup set of batteries, especially if you plan on being away from power outlets for an extended period of time. The current alkaline AA-size battery can make a convenient emergency backup if your original digital camera battery fails.

Researchers at the Uppsala University in Sweden have developed a new thin-film battery made from salt and cellulose. This salt and paper battery uses a thin-film which makes it an attractive feature for many portable devices that draw a low current. It can be used in many low-power devices, such as wireless sensors, smart cards, medical implants and RFID tags.


The cellulose is derived from a polluting alga found in lakes and seas. The alga’s walls contain cellulose that has a different nanostructure, which gives it 100 times the surface area. The lightweight, rechargeable battery is made by coating the paper, HP 342661-001 Battery,, HP pavilion dv6000 Battery(hp dv6000 battery)
HP Pavilion dv8000 Battery(hp dv8000 battery), made from this cellulose, with a conducting polymer, and inserting a salt-solution-soaked filter paper between the paper electrodes.


In comparison with a lithium battery that would take 20 minutes to recharge, this new battery can be recharged in tens of seconds because the ions flow through the thin electrode quickly. The salt and paper battery will be made available to distributors in about three years. For the moment it is still in the early stages of development.


The differences between Ni-MH battery and Lithium battery

1, the weight


Each one-voltage battery cells of view are the nickel-metal hydride and nickel-cadmium 1.2V,HP pavilion dv6000 Battery while the lithium battery is in fact only 3.6 V, voltage of the lithium battery is 3 times the other two. And the weight of the same type of lithium battery and nickel-cadmium batteries is almost equal, while heavier than Ni-Ni-MH battery. We can see that the battery itself, the weight of each different, but the top of the lithium battery voltage of 3.6V, as in the case of the output voltage is equal to the number of combinations of a single cell may be reduced after the third is forming the battery weight and size reduction.

2, the memory effect



Nickel-metal hydride batteries and nickel-cadmium batteries have the same memory effect. Therefore, the direction of the regular discharge is necessary. This regular discharge management are at the fuzzy edge was treated, or even some knowledge of improper conduct discharge (discharge or use a number of times each time after discharge were the result of the company vary) This landfill management cumbersome use nickel-hydride VGP-BPS2B batteries, metal can not be avoided. In terms of lithium battery, because of no memory effect, it’s very practical and easy to use. It is completely without regard to the residual voltage is how much can be charged directly, charging time can be shortened by nature.


3, self-discharge rate


Nickel-cadmium batteries discharge 15 ~ 30% (month). Ni-MH battery for 25 ~ 35% (month), a rechargeable Lithium is 2 ~ 5% (month). HP Pavilion dv8000 Battery Than nickel-metal hydride batteries self-discharge rate is highest, while the lithium satelite battery expertise with the other two types of rates of discharge of the battery compared to very low.


4 Price


Nickel-metal hydride batteries and lithium batteries can not be insensible to overload. Therefore, nickel-hydride batteries, metal mode constant current load control PICK CUT when the charging voltage is higher, HP 342661-001 Battery,, HP pavilion dv6000 Battery(hp dv6000 battery)
HP Pavilion dv8000 Battery(hp dv8000 battery), to stop the load as the best means of support. The lithium batteries using a constant current, constant voltage mode, the best, if nickel cadmium battery charger DV-controlled manner, while pairs of nickel-metal hydride batteries and rechargeable lithium batteri




digital camera battery

A digital camera battery is probably the most important digital camera accessory. Some digital cameras can consume power at an incredible rate, providing only a few hours of continuous shooting time before the battery is exhausted. Other cameras are famous for the long life of their digital camera battery which allows users to snap away with barely a thought to power consumption. It is important to know how you plan to use your camera and what kind of battery it needs.


There are two types of Digital Camera Battery. Hp laptop battery The most widely available digital camera battery is a standard AA-size battery. The other type is a rechargeable battery that is made by the manufacturer, otherwise known as a proprietary battery.


A proprietary digital camera battery offers the advantage of being lighter and more compact,HP 342661-001 Battery,, HP pavilion dv6000 Battery(hp dv6000 battery)
HP Pavilion dv8000 Battery(hp dv8000 battery), but they are often more expensive, making the prospect of buying one or two backup sets much less appealing.


The alkaline AA-size digital camera battery usually has a very short life - less than an hour in extreme cases - when used in a digital camera. This type of battery makes an acceptable emergency backup, especially if you are travelling with your camera. However, the Nickel Metal Hydride (NiMH) digital camera battery can be used instead of the alkaline ones with a Charger and this rechargeable digital camera battery has a substantially longer life at an affordable price.


Another type of AA-size battery is the non-rechargeable Lithium A1045 batteries and rechargeable Nickel Cadmium (NiCD) batteries. The lithium digital camera battery has a superior life to alkaline AA’s and offers good cold-weather performance but their price and non-rechargeable feature make them less useful than rechargeable NiMH batteries. It is also important to ensure that your camera can take a lithium digital camera battery. On the other hand, the NiCD digital camera battery offers the advantage of retaining their charge while unused, unlike NiMH cells, but have shorter lives and need to be discharged completely before recharging which could be very inconvenient.


The LCD screen of a digital camera is responsible for consuming the most power, HP 342661-001 Battery so it is worth only using the LCD when necessary to help save the battery life. Always try to carry at least one backup set of batteries, especially if you plan on being away from power outlets for an extended period of time. The current alkaline AA-size battery can make a convenient emergency backup if your original digital camera battery fails.

Researchers at the Uppsala University in Sweden have developed a new thin-film battery made from salt and cellulose. This salt and paper battery uses a thin-film which makes it an attractive feature for many portable devices that draw a low current. It can be used in many low-power devices, such as wireless sensors, smart cards, medical implants and RFID tags.


The cellulose is derived from a polluting alga found in lakes and seas. The alga’s walls contain cellulose that has a different nanostructure, which gives it 100 times the surface area. The lightweight, rechargeable battery is made by coating the paper, HP 342661-001 Battery,, HP pavilion dv6000 Battery(hp dv6000 battery)
HP Pavilion dv8000 Battery(hp dv8000 battery), made from this cellulose, with a conducting polymer, and inserting a salt-solution-soaked filter paper between the paper electrodes.


In comparison with a lithium battery that would take 20 minutes to recharge, this new battery can be recharged in tens of seconds because the ions flow through the thin electrode quickly. The salt and paper battery will be made available to distributors in about three years. For the moment it is still in the early stages of development.


The differences between Ni-MH battery and Lithium battery

1, the weight


Each one-voltage battery cells of view are the nickel-metal hydride and nickel-cadmium 1.2V,HP pavilion dv6000 Battery while the lithium battery is in fact only 3.6 V, voltage of the lithium battery is 3 times the other two. And the weight of the same type of lithium battery and nickel-cadmium batteries is almost equal, while heavier than Ni-Ni-MH battery. We can see that the battery itself, the weight of each different, but the top of the lithium battery voltage of 3.6V, as in the case of the output voltage is equal to the number of combinations of a single cell may be reduced after the third is forming the battery weight and size reduction.

2, the memory effect



Nickel-metal hydride batteries and nickel-cadmium batteries have the same memory effect. Therefore, the direction of the regular discharge is necessary. This regular discharge management are at the fuzzy edge was treated, or even some knowledge of improper conduct discharge (discharge or use a number of times each time after discharge were the result of the company vary) This landfill management cumbersome use nickel-hydride VGP-BPS2B batteries, metal can not be avoided. In terms of lithium battery, because of no memory effect, it’s very practical and easy to use. It is completely without regard to the residual voltage is how much can be charged directly, charging time can be shortened by nature.


3, self-discharge rate


Nickel-cadmium batteries discharge 15 ~ 30% (month). Ni-MH battery for 25 ~ 35% (month), a rechargeable Lithium is 2 ~ 5% (month). HP Pavilion dv8000 Battery Than nickel-metal hydride batteries self-discharge rate is highest, while the lithium satelite battery expertise with the other two types of rates of discharge of the battery compared to very low.


4 Price


Nickel-metal hydride batteries and lithium batteries can not be insensible to overload. Therefore, nickel-hydride batteries, metal mode constant current load control PICK CUT when the charging voltage is higher, HP 342661-001 Battery,, HP pavilion dv6000 Battery(hp dv6000 battery)
HP Pavilion dv8000 Battery(hp dv8000 battery), to stop the load as the best means of support. The lithium batteries using a constant current, constant voltage mode, the best, if nickel cadmium battery charger DV-controlled manner, while pairs of nickel-metal hydride batteries and rechargeable lithium batteri




the most popular laptop battery

Network, the most popular laptop battery BatteryMon2.0 tests software, it is a green laptop battery test software, there is the Chinese version,Hp laptop battery I felt this test software was good, more Intuitive! Users can see the discharge curve of the battery to determine the current state of the battery, but can also test the use of maximum power from your battery time! This article describes a new set of software testing Eate battery is a good software can be downloaded free, interested friends may want to test yourself down under the battery.


Preface test battery for notebook: Laptop battery always undermine the effectiveness of the user to understand laptop battery at the maximum load, minimum load, or other ordinary cases, what happens to last they became the laptop users, the future of mobile computer users concerned about the main factors.


Laptop battery test body: The laptop has some knowledge of friends may know yourself to determine the resistance of the batteries in your laptop in two ways.


Laptop battery Test Method 1: the battery is fully charged unplug the power cord from the outlet, start the motherboard to supervise every moment to write a report file information (e.g., CPU frequency), so that when the battery after the power is empty, HP Pavilion dv9000 Battery(hp dv9000 battery), HP EV087AA Battery, you can see the records of test report start and end time, their difference is the lifetime of the battery. To avoid the process of writing the information because of electricity caused by the report file is damaged, you’d better put in two different file formats along with written information. This method may help you estimate the load at the minimum operating time of battery. If you want to test your computer when you run certain applications, the operating time of battery you can cut the power to open these applications before running.


Laptop battery Test Method 2: Buy special test software to be certified as Brand Mobile. HP Pavilion dv9000 Battery It is by running some special programs to test your endurance of the battery cell. And it is often more tests save system resources. Sometimes playing Unreal Tournament (Unreal Tournament) The class of the game, if using Mobile Mark test data to estimate the lifetime of the battery is not an easy task. Mobile Mark also provides a feature called the reading test, it can mimic the user to view a page of text file, and his results speak for your notebook batteries in the use of minimal loading time.


However, I believe that the use of mobile professionals Mark test software must be quite expensive, using the program monitors motherboard also appeared not specific enough, so here we recommend a battery of testing new software - PC Portable battery of tests of software-Battery Eater.


Test software on the laptop battery Battery-Eater


Mobile software test Dell Inspiron E1505 battery-Battery Eater is a software specifically for the X-test bitlab developed in the laboratory. With this simple procedure and practice, we can not only test the laptop batteries in different work environments where the potential can also use this software generates various tables and graphs to include a variety of test data and configuration information of ‘computer.


Until 2002, December 20, HP EV087AA Battery after a number of improvements needed and perfect after, Battery Eater the first edition was published. At that time, the first information of user feedback indicates that the software should also continue to improve, so that the second edition of the software Battery Eate is quickly delivered. HP Pavilion dv9000 Battery(hp dv9000 battery), HP EV087AA Battery, On January 5, 2003, 2003 Battery Eater X-bitlab the first laboratory official release. Hou then start the software on the new report system configuration, status indicators for hp 417066-001 battery charging and maps of battery discharge and other functions. Is even more gratifying is that BatteryEater available for free download.


As we all know that many non-profit software usually remain in the initial test version and would never consider going to improve, although a little bit. This software Battery Eater is on the contrary, it is up to date has been made several improvements and perfection. This little program was included in the site of much free software, and after a number of web site column and test

2009年10月8日星期四

Compaq Presario R3000

Compaq Presario R3000

Spec data:

1.6-GHz Athlon XP-M 3000, 256MB DDR SDRAM, 40GB (4,200-rpm hard drive, 15.4-inch (1,280 x 800) display, 802.11b wireless, 7.9-pound system weight (9.5-pound travel weight), nVidia GeForce 4 420 Go graphics, DVD/CD-RW combo drive, three USB 2.0 ports, Windows XP Home



Pros:

Wide-aspect screen, three USB ports, easily accessible buttons.

Cons:

(compaq r3000 battery) (COMPAQ 346970-001) life: 4 - 6 hours

Bottom Line:

the HP Compaq Presario R3000 is a desirably designed multimedia notebook, with a 15.4-inch wide-screen display at an affordable price.



Review

If you're looking for a bargain basement system to ease the back-to-school burden but don't want to sacrifice multimedia features, then the Compaq Presario R3000 could be the notebook for you.


The 8-pound R3000 has a sharp 15.4-inch WXGA display. The system had no problem displaying our test DVD movie clearly, and its JBL Pro speakers delivered superb sound quality. The nVidia GeForce4 420 Go graphics solution helped the R3000 win first place on our 3D performance tests. (Although our test system came with 802.11b, HP is offering free upgrades to 802.11g.)


On Multimedia Content Creation Winstone and our Serious Sam SE gaming demo, the R3000 had the best scores of the budget machines with 16.6 and 28.4, respectively. But we were surprised to find no memory card reader on a system with such multimedia-centric components. HP Presario R3000 Battery On Battery Mark, the R3000 lasted 4 hours 42 minutes, which was lowest among the budget systems.


The R3000 offers very good bang for the buck if you're on a budget but still want a spiffy multimedia system that will impress your dormmates. (Hey, you even get Microsoft Office SE 2003 for when it's time to get to work.) Shy away from the R3000, however, if you're looking for a more mobile system to carry around campus.

2009年9月23日星期三

Methanol fuel cell & multi-purpose portable solar

2004 to 2005 as the target market, the Japanese equipment manufacturers around the laptop battery and cell phone fuel cell engaged in a fierce competition to develop. Fujitsu Research Institute in the trial of this case for fuel cell laptops.Hp laptop battery Maximum output power of 15W, in the use of 300ml of methanol solution, they can drive the company's notebook computer "FMV-BIBLOMG55E" running from 8 to 10 hours. Since 2001 the Institute began in the materials before and after the Environmental Technology Institute of the fuel cell for mobile phone development, has made some in the outcome of the test products will be announced later. HP Pavilion ZV6000 Battery(hp zv6000 battery)
HP Pavilion DV1000 Battery(hp dv1000 battery), HP PF723A Battery, HP 367759-001 Battery, The test products released for notebook computers, but not solely on the development of personal computers for the goal. "Mobile phone and other mobile devices will be equipped with features such as television receivers, the power consumption will continue to improve. Naturally applies to the equipment, taking into account" (Fujitsu Research Institute of Materials Research Institute of Environmental Technology Research Department of the function of organic materials). Entering the practical stage, will be considered with the mobile phones, notebook computers and other joint business development.


The advantage of the introduction of the test products is promising to use high concentration methanol solution. In the original direct methanol fuel cell, if the supply of fuel very high concentration of methanol solution, the methanol will not react directly through the polymer electrolyte membrane, the occurrence of "infiltration (CrossOver) phenomenon." Therefore, at present, most of the set concentration of methanol solution at about 10%. Fujitsu Research Institute of the confirmation, even if the concentration of methanol solution to 30% toshiba battery, it did not happen due to infiltration of the phenomenon led to the problem of declining output. Due to high concentration of methanol can be used,HP Pavilion ZV6000 Battery(hp zv6000 battery) thus greatly improving the unit weight or unit volume of energy density.


In order to reduce the infiltration phenomenon, Fujitsu Research Institute has done a two-pronged effort. Polymer electrolyte membrane that is to change the composition of the material, HP Pavilion ZV6000 Battery(hp zv6000 battery)
HP Pavilion DV1000 Battery(hp dv1000 battery), HP PF723A Battery, HP 367759-001 Battery, as well as efforts in the electrode structure. The use of polymer electrolyte membrane material has aromatic structure of the main chain. The original widely used fluorinated resin as compared to the spatial structure of polymer is very different. "This kind of material to make polymer electrolyte membranes become rigid and detailed. Feel like on the stronger and engineering plastics. And also very strong polarity. Mission of methanol polymer electrolyte membrane had preventive effect of increased 5-fold" ( Fujitsu Research Institute). Through the use of such a polymer electrolyte membrane, even if the concentration of methanol kept at 30%, it did not happen due to the infiltration phenomenon caused by the phenomenon of decline in output power. Fujitsu Research Institute also said that "feeling can also continue to improve concentration. Has confirmed in 40% of work", but did not mention the use of methanol and, therefore, a high concentration of methanol is not clear how efficient the use of. battery.


In order to obtain such a polymer electrolyte membrane material, the Institute with the outside world in addition to factories and universities to conduct joint studies, also conducted its own internal development. Fujitsu Research Institute but did not publish the source of the materials used,HP Pavilion DV1000 Battery(hp dv1000 battery), and ultimately used to determine what kind of material did not.


In the electrode structure, the Au catalyst is said to improve the density of carbon black carrier. "Improving the density of the outer electrode. The result is compared with the original electrode makes the thinning. Au particles larger density, the physical structure also helps prevent the passage of methanol molecules" (Fujitsu Research Institute). For the realization of such a high-density, it is said the company will be fine Au particles to the diameter of 2 ~ 3nm.


Fujitsu Research Institute will present the concentration of methanol solution to 30%, but their goal is 50%. "30% is not enough. If you do not raise the 50 percent target is not" (Fujitsu Research Institute). Practical use of the target before and after 2005.


Fujitsu Research Institute in the development, HP Pavilion ZV6000 Battery(hp zv6000 battery)
HP Pavilion DV1000 Battery(hp dv1000 battery), HP PF723A Battery, HP 367759-001 Battery, it is also expressed at home and abroad to participate actively in the legal environment to promote the idea that "although progress has been made in the development, if imperfect legal provisions, in the application of obstacles still exist. For example, HP PF723A Battery,when the fuel cell with into the aircraft cabin? it is necessary to advance the preparatory work in this area. "


Add the use of methanol fuel solution. Solution penetrated into the lower part of the adoption of self-respect toshiba satellite m100 battery, toshiba satellite m105 battery, it reached the bottom of the fuel cell plate. Solution in methanol without added tools such as pumps, belonging to the passive type.


The products include the body (battery), solar cells, a variety of devices to connect the dedicated AC wire interface. Electricity generated by solar cells is stored in the body, the use of stored energy, the solar cells can be removed in order to carry. Capacity of the power can be stored 4.8Wh, equivalent to two ordinary phone battery. Output voltage of 3.8V ~ 8.5V, the maximum output power of 10W.


Part of solar cells using a single two large-size solar cell modules. Generating high-voltage generally is 7mm width of 15 battery modules in series to constitute a loop, but this will appear as part of the battery unit according to less than sunlight, or by an external impact damaged part of the battery unit of the circuit can not work. To avoid this problem using a single mode of NTT.


Removed after the solar cells can be placed on a hand


However, in SBC, the use of sunlight can be issued only voltage 0.1 ~ 0.4V or so.HP 367759-001 Battery, NTT has developed to this end will be about 0.1 ~ 0.4V low-voltage to 5V or so "very low input-voltage step-up technology." In order to achieve even a part of the plate can not generate electricity to other parts of the normal power generation, and will have the power stored in batteries on the body of the function, the entire solar cell modules are printed on the collection of the electrode power.


In addition, the "pockets of power," also called with the "MPPT" (Max Power Point Tracking) function. It can detect changes along with the light of current and voltage changes, it has been maintained at the highest state of power generation. "MTTP is a roof, etc. have been used in solar cells on large-scale practical use of technology, HP Pavilion ZV6000 Battery(hp zv6000 battery)
HP Pavilion DV1000 Battery(hp dv1000 battery), HP PF723A Battery, HP 367759-001 Battery, but because of the control chip power consumption is too large can not be used in the previous small-scale solar cells.'s" Power pockets "to streamline the functions of the MPPT successfully configure the function "(NTT Energy Research Institute of Environmental Systems Engineering, director of energy research fellow Masato Mino). NTT said that through these technical improvements, new product capabilities in power generation technology with the use of the original compared to the power-generating capacity, photoelectric conversion efficiency can be increased by about 1.5 times.

Contend with fuel cell vehicle

Speaking of a new generation of cars, the most powerful when the number of candidates in order to hydrogen-powered fuel cell vehicle laptop battery. However, there are many issues compared to the fuel cell vehicle,Hp laptop battery there are a number of new technologies and as a result of more realistic and compelling. This is the electric motor with the engine and the hybrid, as well as in Europe, promoting the popularization of the main diesel engine vehicles.


In these new technologies and intense competition for dominance in the competition when it unexpectedly From a surprise. This is the Mazda is developing a "hydrogen rotary engine" car.


To ¥ 5,000,000 each (about 384,000 yuan) for the target


Fuel cell vehicle is hydrogen and oxygen through a chemical reaction to obtain power, and Mazda's hydrogen engine is based on hydrogen-fueled internal combustion engine. The world dedicated to research and development of hydrogen engines only Mazda and BMW in Germany. Mazda since 1991, HP PM579A Battery, HP Pavilion DV4000 Battery(hp dv4000 battery) , HP Pavilion ZE2000 Battery(hp ze2000 battery), HP Presario M2000 Battery(compaq m2000 battery), has been engaged in the development of hydrogen engines. Up and down movement of the piston engine general it is difficult to control the combustion of hydrogen toshiba battery. However, HP PM579A Battery,Mazda's proud ---- let alone technology triangle rotating rotor rotary engine is very suitable for control of hydrogen combustion, hydrogen engine is Mazda eyes on this point.


"The goal is 3 to 4 years in the practical operation." In October last year, Mazda's president Hisakazu Imaki in Tokyo Motor Show this Declaration issued Zhuang, before the specific surface of the strategic plan. The next 2 years with a hydrogen engine will be the first to government agencies and enterprises to carry out video, then consider selling in the market. February next year will add an additional hydrogen Mazda headquarters facilities for the practical use to prepare. In addition, the need to spend huge sums of money from the fuel cell vehicle Mazda's largest shareholder - the United States responsible for the development of Ford, it can be wholeheartedly Mazda hydrogen rotary engine development. Rotor hydrogen car is the most important weapon to reduce costs. At present, such as Toyota and Honda are rented or sold to government agencies, such as fuel cell vehicle, but the body is said to vehicle prices in the ¥ 100,000,000 (about 7.69 million yuan) or more. Fuel cell vehicles as a key part, so that hydrogen and oxygen react chemically generate electricity, "battery pack" in terms of cost to occupy a large proportion of future development work still needs to invest heavily.


At the same time, hydrogen basic structure of the rotor of motor vehicles in April last year began selling sports car of the "RX-8" compared to almost no change. Just add an additional hydrogen to the combustion chamber of the injection device, placed in the trunk of the hydrogen storage tank and the hydrogen leak detection sensor can be.HP Pavilion DV4000 Battery(hp dv4000 battery) , Even the engine room, compared with an ordinary car is no different, you can use the original intact production equipment to reduce new investment.


RX-8 in the prices of ¥ 2,000,000 (about 150,000 yuan) from top to bottom, and "practical rotor of the hydrogen car will be the market price of about ¥ 5,000,000 in the objective to develop" (project development to promote this Investigator Zhanghong Kashiwagi). It is certain that the low supply prices will be fuel cell vehicles can not match.


Hybrid is also under consideration


Kashiwagi full of looking forward to the future: "Hydrogen is not a simple rotor 'convergence' petrol truck and a car battery technology. Hydrogen supply facilities in the future even if fuel cell cars have become the mainstream of the times, but also need to use, so the rotor hydrogen fuel car can be cell vehicles continue to coexist. "


However, the true hydrogen car to universal rotor that there are still some technical issue toshiba satellite m40 battery, toshiba satellite m45 battery. Rotor current development of hydrogen cars, hydrogen can only be added once traveling 70km. Although it could be combined with gasoline, in the practical aspects of the problem does not exist, but such a short distance or to undermine the significance of the next generation of engines. In addition, the use of gasoline can produce 210 horsepower at the power, and then switch to hydrogen is only about 110 horsepower, HP PM579A Battery, HP Pavilion DV4000 Battery(hp dv4000 battery) , HP Pavilion ZE2000 Battery(hp ze2000 battery), HP Presario M2000 Battery(compaq m2000 battery), a reduction of about half the horsepower. Even if these problems can be solved, but "still need to study hydrogen storage battery and the motor rotor and the combined hybrid system." (Okada and Mazda's executive director)


Rotor engine in the 90's have had to stop the development of endangered plight. HP Pavilion ZE2000 Battery(hp ze2000 battery),It difficult to cope with increasingly stringent environmental standards are the main reason. However, this is the rotor Mazda engine may become a new generation of environmental technology trump response.


U.S. R & D of micro-generators to replace the phone battery


Recently, the USA and Georgia Institute of Technology announced that with the Massachusetts Institute of Technology, working closely with scientists, they have successfully developed a micro-generators, only 10 mm in diameter, is the continuing use of mobile phone battery is more than 10 times. Scientists will be held in January next year, the International Conference on Micro Electro Mechanical System published the results of this gratifying.


Georgia Institute of Technology is one of 10 open construction, computer, engineering, management and other professional, a total of 16,000 students in the United States is to train African-American women scientists and the best scientists, a university, research university is 2003-2004 academic year a total of 342 million U.S. dollars of research funding.


Over the years, more and more compact electronic products, and its battery has a larger volume of plays. In order to solve this problem, the scientists have been dedicated to the development of micro-generators, and put forward a number of different principles of micro-generators. And the Georgia Institute of Technology scientists have developed such a generator to replace the phone toshiba satellite m50 battery, HP PM579A Battery, HP Pavilion DV4000 Battery(hp dv4000 battery) , HP Pavilion ZE2000 Battery(hp ze2000 battery), HP Presario M2000 Battery(compaq m2000 battery),toshiba satellite m55 battery, indicating that micro-generators to enter the electronic products to replace conventional batteries and an important step.


The principle of the micro-generator is installed in a chip on the induction coil, so that a small rotating magnet around the coil, resulting in sufficient current. Through continuous testing, the rotating speed of the magnet is now up to 100,000 per minute lap,HP Presario M2000 Battery(compaq m2000 battery), the speed can generate 1.1 kilowatts of electricity, enough to replace the phone battery. The researchers said that will be sure to have a speed of 20-50 kilowatts of power for laptop computers. In order to improve the rotation speed, the most critical problem is how to avoid rotating magnet in the process of fracture. Centrifugal force generated by high-speed rotating magnets broken enough to make, in order to solve this problem, researchers continue to improve the size of magnet and wrapped in titanium alloys in.

New type of lithium battery electrolyte

Institute of Advanced Industrial Science and Technology in Japan developed a lithium-ion rechargeable laptop battery for the flame-retardant electrolyte. Hp laptop battery Not volatile as a result, even if the temperature of +300 ℃ will not be close to the fire and decomposition, but also not in the ordinary lithium-ion rechargeable battery voltage of the chemical reaction. Will be applied to lithium metal anode for lithium-ion rechargeable batteries can greatly enhance the safety of use.


The development of electrolyte for maintaining the liquid state under normal temperature and the organic salt "ionic liquids." Specific components for the four cyclic amine - amine salt PP13 ㏕ FSI (N-methyl-N-proplylpiperidiniumbis (trifluoromethanesulfonyl) imide).HP Presario V2000 Battery(compaq v2000 battery), HP pavillion zx5000 Battery(HP hp zx5000 battery), HP PP2200 Battery
HP Pavilion dv2000 Battery(hp dv2000 battery), Not only has the non-volatile and fire retardant, and will not precipitate a lithium metal anode for lithium-ion rechargeable toshiba battery, when often the dendritic crystallization (dendrite). The original organic solvents as a result of repeatedly charging generated power and dendritic crystal would result in the compartment between the electrode punctured causing a short circuit. The development of ionic liquids will not be such a dendritic crystal precipitation, but relatively smooth

To.

The development of the use of electrolytes to lithium metal as negative electrode,HP Presario V2000 Battery(compaq v2000 battery), lithium cobalt (LiCoO2) for the positive electrode of the button battery charge and discharge more than 97% efficiency, the effect was very good. In addition, a nickel electrode plate for easy battery trial units (according to charge type unit) charge-discharge efficiency was also achieved in the test more than 97%, with the original organic electrolyte maintained essentially at the same level. Institute of Advanced Industrial Science and Technology that, in addition to lithium metal used in electrodes for lithium-ion rechargeable battery, this electrolyte can also be used to improve the existing lithium-ion rechargeable battery security. As a result of new low electrolyte conductivity, so the issue is how the future with other electrolytic

All to be improved and so on.


The results as a New Energy and Industrial Technology Development Organization (NEDO Technology Development Organization) project commissioned by the "fuel cell vehicles, such as lithium-ion battery technology development - elements of high-performance lithium battery technology development (2002 ~ 2006)" and to conduct research.


Singapore developed a nano-size of only 50 transistors


According to reports, the success of Singapore scientists have developed nano-size of only 50 transistors, so that Singapore's semiconductor research from the "micro-electronic" era into the "nano-electronic" era.


The study was the National University of Singapore Associate Professor of Electrical and Computer Engineering, led by Yang Jia Microelectronics Institute of the two groups and results of cooperation. Institute of Microelectronics,HP Presario V2000 Battery(compaq v2000 battery), HP pavillion zx5000 Battery(HP hp zx5000 battery), HP PP2200 Battery
HP Pavilion dv2000 Battery(hp dv2000 battery), Singapore Science, Technology and Research under the research institutions.


Dr. Yang Yujia accepted an exclusive interview with the newspaper said, roughly equivalent to 50 nanometer diameter 1/2000 hair,HP pavillion zx5000 Battery(HP hp zx5000 battery), about the size of 100 atoms. Estimated the speed of its operation than the existing transistors 20-50% faster.


Yang Jia said, it is worth mentioning is that the transistor can be directly integrated into existing chip manufacturing process of the disc toshiba tecra a3 battery, toshiba tecra a4 battery. Wafer fabs in its production process as long as the added two steps, you can create such a transistor, rather than have the trouble and equipment replacement process.


Transistor is the electronic products such as computers, mobile phones, digital cameras, such as an important part. The size of transistors and operating speed, it will directly affect the prices of electronic products and functions. If a circuit can accommodate more transistors, but also means that the functions of electronic products more stronger. Transistors with lower power consumption, have a direct impact on battery life of electronic products.


Dr. Yang said that in the microelectronics era of transistor manufacturing process had not reached the level of atoms. "About two or three years ago, the transistor has such a small extent: HP Presario V2000 Battery(compaq v2000 battery), HP pavillion zx5000 Battery(HP hp zx5000 battery), HP PP2200 Battery
HP Pavilion dv2000 Battery(hp dv2000 battery),scientists must begin to study how atoms arranged in order to create smaller transistors."


Nanoelectronics refers to artificial changes in the distance between atoms to create a smaller and better transistors.


AEM made Shanghai Fengbao proxy Chip Fuse


Agent components and Shanghai Electronic Technology Co., Ltd. has recently introduced a new chip fuses the United States AEM product line, the protection circuit for the user to provide more choices.


It is said, AEM in laminated ceramic chip electronic components, HP Pavilion dv2000 Battery(hp dv2000 battery),thick film technology, new materials and electronic components design and manufacture of proprietary equipment, such as the industry leader in the field. The company is the U.S. Department of Defense and NASA (NASA) satellite dedicated space approved FM12 fuses the world's sole supplier of top U.S. priority in the purchase of military products supplier directories. AEM has also won numerous clients such as the U.S. company TRW awarded "Best Supplier" award.


The abundance and the Shanghai Electronic key is to promote SolidMatrix shaped surface mount chip fuse (lead-free). AEM developed SolidMatrix alone produced stone-type fuses, the use of the AEM "co-firing" (co-fired) patented technology, with a structure, high reliability and low manufacturing costs, etc., can be widely used in liquid crystal displays, PC card, floppy disk drive, PDA, digital camera, DVD, television, cell phones, rechargeable toshiba tecra a5 battery, toshiba tecra a6 battery, battery charger circuit protection products.


2009年6月17日星期三

HP Laptop Battery

HP Laptop Battery


--------------------------------------------------------------------------------



Welcome to www.hp-laptop-battery.net, Hp laptop battery,We have a lot of selection of repalcement hp laptop batteries or compaq laptop battery or laptop adapter ,We supply the low price and highest quality battery, and we only use high quality cells in our products. Our products offer identical quality and capacity as all Original Equipment Manufacturer parts but only at low cost. If you have any suggestions for our battery or service, you can email to customer service department, 08K8193, 08K8192, 92P1101, 92P1089, 92P1087, your help will be great appreciated!


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HP Laptop Battery Wholesale Center Battery

Usage Tips

1. New

battery pack must be fully charged before use.


2. New battery pack needs to be fully charged and discharged

(cycled) a few times before it can condition to full capacity.


3. Rechargeable batteries undergo self-discharging when left

unused. 08K8193,Always store a battery pack in a fully charged staged

for storage.


4. Fully drain and fully recharged your battery pack every

few months.


5. Turn down the LCD brightness of your portable device.

08K8193, 08K8192, 92P1101, 92P1089, 92P1087,

6. Use built-in power management on your portable device.


7. Turn off LCD or other unnecessary accessories when not

in used.


8. Set screen saver ,08K8192,blank to 1 to 2 minutes of your notebook


9. Add more RAM if you have extra RAM expansion slot, it will

reduce the usage of hard drive and it is power exhaustive.


10. Close unused software in your notebook.


11. Remove unused PC Cards or USB devices from your notebook.


12. Don’t watch DVD or play graphics intensive video games.


13. Don’t short circuit terminal or store your battery pack

with metal parts.


14. Don’t drop,92P1101, or mutilate the battery pack.


15. Don’t expose to moisture or water.


16. It is normal to get warm when charging or normal use.

If it is getting too hot, there may be a problem with the

device and qualified personnel should check it.



Four Tips on Maximizing HP Compaq Laptop Battery Performance

Power down all nonessential functions. Switch it off if you’re not using it. 08K8193, 08K8192, 92P1101, 92P1089, 92P1087,Many business travelers already know that you don’t want to take the DVD player for a spin on the plane, and that every time you hit “save” it can set the hard-drive whirring, which devours even more power.92P1089, “But users often also forget to turn off their wireless card when they are no longer using it but are still using their computer,” notes Mike Fuller, executive vice president of PC Laptops, a Sandy, Utah, laptop manufacturer. “When the wireless card is on, it still continually searches for networks.” In Windows XP, click on “Power Options” in your control panel. It allows you to reduce the power consumption of any number of your computer devices or of your entire system.

Stay out of extreme temperatures. The technology that powers you battery isn’t terribly complicated. But it’s important to understand a little bit about the chemistry behind batteries, and how that can affect your work. Specifically, temperatures can affect the performance of your battery. It’s best to use (and especially charge) your batteries at room temperatures. Extreme conditions can drain your battery quickly. Also, avoid partial charges and use the battery until it is dead. Battery experts liken partial charges — and discharges — to eating a cup of lard every day. It significantly shortens your battery’s life. Considering that a lithium-ion battery can explode if it’s improperly used, it could also shorten your life.
08K8193, 08K8192, 92P1101, 92P1089, 92P1087,
Let your laptop do the saving. Not every computing device handles a power source in the same way. Some of the more sophisticated laptops, which are designed with business travelers in mind, are misers when it comes to using power. And that’s a good thing — if you can remember to take advantage of it. “Most users make the mistake of simply not choosing to use a product’s built-in ability to conserve battery life,” says Dan Coffman, a senior product manager for PC manufacturer ViewSonic. 92P1087,How do you harness your PC’s built-in ability to save? Consult your user manual. Often, calibrating your laptop is as easy as double-clicking on the battery icon in the toolbar.

Always, always carry a spare device that uses batteries. How obvious is that? Well, if you’re trying to keep under the onerous new airline weight-limits, it isn’t. But as Rick Thompson, director of engineering at Valence Technology in Austin, Texas, observes, “the availability of ‘free’ power outside of your hotel room is not predictable.” That’s a nice way of saying it. In fact, I sometimes think airport terminals, car-rental facilities and hotels try to hide the power outlets from us to keep us from accessing their free power. Thompson recommends a system that can simultaneously charge a second portable device such as a cell phone or PDA, allowing you to multitask your battery operations.

2009年6月15日星期一

Batteries are constantly being reformulated

What you can do

Batteries are constantly being reformulated - check the labels

Source Reduction Changes,Hp laptop battery, in Household Batteries

Read labels. Mercury reduction in ordinary alkaline batteries began in 1984 and continues today. During the last five years, the industry has reduced the total amount of mercury usage by about 86 percent. Since 1992 most alkaline batteries are manufactured with "no mercury added". Some batteries such as the alkaline battery have had about a 97 percent mercury reduction in the product. Newer alkaline batteries may contain about one-tenth the amount of mercury previously contained in the typical alkaline battery. Some alkaline batteries have zero-added mercury,Omnibook XE3
346970-001, HSTNN-DB02, HSTNN-UB02, DP390A, PP2100, and several mercury-free, heavy-duty, carbon-zinc batteries are on the market.

Mercuric-oxide batteries are being gradually replaced by new technology such as silver-oxide and zinc-air button batteries that contain less mercury.


Nickel-cadmium rechargeable batteries are being researched. Omnibook XE3,Alternatives such as cadmium free nickel and nickel-hydride system are being researched, but nickel-cadmium are unlikely to be totally replaced. Nickel-cadmium batteries can be reprocessed to reclaim the nickel. However, currently approximately 80 percent of all nickel-cadmium batteries are permanently sealed in appliances. Changing regulations may result in easier access to the nickel-cadmium batteries for recycling.


Prevention of Household Battery Waste

To reduce waste, start with prevention. Starting with prevention creates less or no leftover waste to become potentially hazardous waste. The following are steps to take to prevent household battery waste.


Check to see if you already have the batteries on hand before buying more.

When suited to the task buy hand ,346970-001,operated items that function without batteries.

Look for the batteries that have less mercury and heavy metals.

Consider rechargeable batteries for some needs, but remember that they also contain heavy metals such as nickel-cadmium.


Rechargeable Batteries

Rechargeable batteries result in a longer life span and use fewer batteries. However rechargeable batteries still contain heavy metals such as nickel-cadmium. When disposing of rechargeable batteries, recycle if possible.

The use of rechargeable nickel-cadmium batteries can reduce the number of batteries entering the waste stream, but may increase the amount of heavy metals entering the waste stream unless they are more effectively recycled. As of 1992, the percentage of cadmium in nickel-cadmium batteries was higher than the percentage of mercury in alkaline batteries, so substitution might only replace one heavy metal for another, and rechargeable batteries do use energy resources in recharging.


Rechargeable,HSTNN-DB02, alkaline batteries are available along with rechargers.Where to Recycle Your Batteries

Recycling of non rechargeable batteries is still somewhat rare, but recycling used RECHARGEABLE household batteries is now possible! The battery manufacturers have funded a joint recycling center. To find a center near you that will take them, click here! (in the US or Canada))( Which types do they take? Nickel Cadmium (Ni-Cd), Nickel Metal Hydride (Ni-MH), Lithium Ion (Li-ion), and Small Sealed Lead* (Pb) rechargeable batteries are commonly found in cordless power tools, cellular and cordless phones, laptop computers, digital cameras, two-way radios, camcorders and remote control toys.Omnibook XE3
346970-001, HSTNN-DB02, HSTNN-UB02, DP390A, PP2100,


Note that California is a bit of a special case. California regulations require recycling for more types of batteries than other states. See this page for detailed information about how and where to recycle batteries in California.


For more information about the program and the sponsors,HSTNN-UB02,click on Rechargeable Battery Recycling Corporation


If you can't find a location above:

Take the rechargeable batteries to any of the participating retailers. In the U.S.: Alltel, Batteries Plus, Best Buy, Black & Decker, Cingular Wireless, The Home Depot, Milwaukee Electric Tool, Orchard Supply, Porter Cable Service Center, RadioShack, Remington Product Company, Sears, Staples, Target, US Cellular, Verizon Wireless, and Wal-Mart. And in Canada: Battery Plus, Bell Mobility, Canadian Tire, FIDO/Microcell, Future Shop, The Home Depot, Home Hardware, London Drugs, Makita Factory Service Centers, Personal Edge/Centre du Rasoir, RadioShack Canada, Revy, Sasktel, Sears, The Sony Store, Telus Mobility and Zellers.


Use the RBRC collection site locator, or call the consumer helpline, 1-800-8-BATTERY, DP390A, to find the retail collection site nearest you.


Non-rechargeable (typically "alkaline batteries") still don't have a recycler and general just must be disposed in the trash. If you have large quantities or are a business, talk with your permitted sanitary landfill operator (otherwise known as "sanitation services", the "dump" or "landfill"). Waste batteries should not be burned because of the metals, and they could explode. When burned, some heavy metals such as mercury may vaporize and escape into the air, and cadmium and lead may end up in the ash.

Omnibook XE3
346970-001, HSTNN-DB02, HSTNN-UB02, DP390A, PP2100,

Click here for one more place to try to find a recycling location near you if none of the options above were suitable.


Contact your local or county health department, waste disposal operator, extension educator, PP2100, recycling facility, call the EPA Hotline and ask for a copy of the publication: "Used Dry Cell Batteries" - phone (800) 424-9346. This publication does not address nonhousehold waste battery sources such as medical, business, etc.


2009年6月1日星期一

HP Compaq 2710P ultralight Tablet PC Overview

HP Compaq 2710P ultralight Tablet PC Overview

Compaq 2710p is with a complete set of higher-end specification model. This notebook Hp laptop battery,do come with the support to several operating systems namely: Genuine Windows Vista® Business, Genuine Windows® XP Tablet PC, Free DOS, Genuine Windows Vista® Business downgrade to Genuine Windows® XP Professional. The Compaq 2710p is available with, Intel® Core™ 2 Duo ULV Processor U7700 of speed 1.33 GHz, 533 MHz FSB with 2 MB of L2 cache. If you are on the search for a notebook with multiple features and good specification then, this Compaq 2710p would be the best choice. A greatest advantage of this notebook is that it has the upgradeable memory of to 4 GB maximum (2 GB SODIMM in slots 1 and 2).


HP Compaq 2710P ultralight Tablet PC


Here are some of the detailed specification and system features of Compaq 2710p 337607-003 battery,which is with mobile Intel GM 965 chipset. To start with is the processors supported by this notebook are Intel® Core™ 2 Duo ULV Processor U7700 with a speed of 1.33 GHz and 533 MHz FSB, Intel® Core™ 2 Duo ULV Processor U7600 with a speed of 1.2 GHz, 533 MHz FSB and Intel® Core™ 2 Duo ULV Processor U7500 that has a speed of 1.06 GHz and 533 MHz. The Compaq 2710p supports various operating systems to be listed as Genuine Windows Vista® Business, Genuine Windows® XP Tablet PC, Free DOS and even do not leave the Genuine Windows Vista® Business downgrade to Genuine Windows® XP Professional.


The memory capacity of Compaq 2710p is of course mind blowing to be noted on. It has 1 GB 667 MHz DDR2 SDRAM, 2 GB 667 MHz DDR2 SDRAM. These operate at a maximum of 533 MHz with 667 MHz memory. It has 2 SODIMM memory slots and one great advantage Pavilion dv9000(hp dv9000 battery),of this notebook is that it has an upgradeable 4 GB maximum memory support with 2 GB SODIMM slots 1 and 2. Next the storage capacity of Compaq 2710p could be considered as the best with its 80 GB 4200 rpm SMART PATA, 100 GB 4200 rpm SMART PATA, 64 GB Solid State Drive hard drive.


The display unit of the Compaq 2710p is very smart with a display size of 12.1-inch diagonal Illumi-Lite, WXGA and UWVA with anti-glare with Digitizer. The graphics support of Compaq 2710p is with a good option to have games on it. It has a Mobile Intel Graphics Media Accelerator X3100; this with up to 384 MB shared system memory of Microsoft DirectX 9 capability. This notebook does have some other hardware accessories that make it apt for the entertainment. As,EV087AA this comes with a 2 Mega pixel integrated camera with 1600×1200 max resolution (but only on selected models.)


So next on the list comes the audio, lots and ports specification of Compaq 2710p. it is with 2 USB ports 2.0 one1394a, one battery connector, one microphone in, one headphone/line-out and one docking connector. At the rear side of the Compaq 2710p are the following one RJ-45, RJ-11, external VGA monitor, AC power. It has a High Definition Audio support of w/24-bit DAC. One Integrated mono speaker, with integrated microphone. It also have a Touch-sensitive controls for volume up, volume down, EX942AA,and mute. There is a Stereo headphone/line out and Stereo microphone in.


The battery of the Compaq 2710p is with 6 Cells made of high capacity Lithium-Ion. This is attached with a finger print sensor that helps in highest security to your notebook.


School District To Issue 8,000 Dell Notebooks


Round Rock, Texas, June 1, 2006


Cobb County School District in Georgia has teamed with Dell to roll out 5,600 DellTM notebook computers to its teachers and will hand out another 2,400 by the end of July.


As part of a contract valued at more than $10 million, Dell has begun training teachers on how to use the new technology and integrate it into their instruction. Upon completing an initial two-hour training course, teachers can use the Dell LatitudeTM D620 notebooks as a classroom teaching tool and as a productivity tool after school and at home.


"Our teachers are deserving of the best teaching tools that we can provide them,"

said Fred Sanderson, Cobb County Public Schools superintendent.

"Thanks to the leadership of the Cobb County Board of Education,Pavilion ZT3000, these computers have placed a world of information in our teachers' hands. Most exciting is that our students will benefit because the technology will open new avenues of learning in our classrooms."

Karen Bruett, vice president of Dell's K-12 business, said Cobb County's leadership in education technology punctuates a trend she is seeing in schools around the country. In the Dell-sponsored 2005 NetDay Speak Up survey of more than 200,000 students and teachers, nearly 60 percent of teacher respondents said they'd like more professional development and training on integrating technology into the curriculum.


"It's essential that educators have access to and training on technology so they are better equipped to incorporate it into instruction,"

Bruett said.

"Cobb County has taken a leadership role in bridging the technology gap between teachers and students. That's an important step in helping students develop the 21st century skills they need it to be competitive in today's economy."

Cobb County, near Atlanta, has the second-largest school system in Georgia, 337607-001 battery,serving a diverse population of more than 104,000 students in 110 schools...

2009年5月31日星期日

Battery care: 10 things you can do to make any battery last longer

















Battery care: 10 things you can do to make any battery last longer

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Steve Lee Tuesday, December 23, 2008







As far as battery maintenance goes, I'm the worst ever. I can't even begin to count the number of times I've needed to jump on my lap-top, use my cell phone or any other portable electronic device, only to find myself in the unenviableF2024B, position of having no juice left on the battery. Simply put, I overuse, poorly maintain, and all in all just wear down all of the batteries I need like it's going out of style.



These bad habits usually leave me powerless when I most need power, so I asked around and came out with these 10 simple things you can do to make any battery last longer.














1. Use the lowest brightness settings on screen displays.



This will not work in bright areas like out doors,F2024A, but sure works well indoors. Cell phones, lap-tops, and even watches have brightness controls that will help stretch the life of any battery.














2. Fully charge and discharge all of your batteries.



Try to avoid "topping off" the battery if there's enough of a charge in there to get by,Omnibook XE3 then remove the battery or unplug from the charger only after it has had a chance to trickle charge at 100%, and your battery will last 2 or 3 years easily.














3. Use programs that take less RAM and keep useless programs closed.



A lot of laptops come with cluttered programs since the day you take them home from the store. Stuff like Yahoo messenger or Firefox with 20 tabs open takes a lot of RAM and eats up batteries super fast.














4. Keeping the volume level on all of your music playing devices is key to a longer battery life.



You'll be amazed at how much life loud music sucks out of your battery.346970-001 battery, This will also do wonders in preserving your ear-drums as well.














5. To go with #4, also turn down the volume on your cell-phone ringer.



Long ring-tones may sound cool, but hearing your favorite song play every time your phone rings will drain your battery in a hurry.














6. Turn off your Bluetooth whenever you're not using it.



This can be an easy one to forget about if you're often switching between using a Bluetooth,HSTNN-DB02, and the phone's ear piece. Most people use their Bluetooth way too much anyhow, so cutting back on it's use will lengthen the life of your battery.














7. I've always heard that when you get a new laptop, or anything with a rechargeable battery for that matter, you should charge it over night.



Pull that bad boy out of the box and give it a nice, long, healthy charge. Even if it says full, leave it in and charging for a while.














8. When I was little I would always find batteries in my grandmother's fridge.



I always wondered why, turns out she was onto something.HSTNN-UB02, If you have extra batteries for your phone, laptop, or anything else, go ahead and store those in the refrigerator. Just make sure not to freeze them.














9. Programs that are run from a CD or DVD can be copied to and run from the hard drive, which typically consumes less power than an optical drive.



If you have music and movies you know know you'll be playing numerous times, DP390A, just rip them onto your hard drive and you'll be styled!














10. Lastly, just using basic common sense will help extend the life of all of your batteries.



If you're not using it, turn it off! If you don't need it, get rid of it! PP2100,This is probably the most practical and applicable way to get the most out of all of your batteries.

Laptop Battery Dissected

Laptop Battery Dissected



Joseph Lopez Friday, May 02, 2008

Laptop batteries look plain and solid from the outside. Hp laptop battery,They come in all shapes and sizes, but for the most part they all look the same inside. Laptop batteries usually consist of 6 to 8 cylindrical lithium-ion 18650 cells with a PC board which communications with the laptop and offers over charging (voltage) protection.


The outside of a Laptop batteries is just the casing. It holds all the insides together and protects your hands when you are holding it.


You'll notice most Laptop batteries come with a lot of print on one of the sides. It tells you how that particular battery should and should not be handled. They all say something along the lines of:


 


WARNING:


Do not place Li-Ion batteries in fire orF2019A,heat the battery.

Do not install the battery backwards so that the polarity is reversed.

Do not connect the positive and the negative terminal of the battery to each other with any metal object.

Do not carry or store the batteries together with necklaces, hairpins, or other metal objects.

Do not puncture the battery.

Do not subject the battery to strong impacts or shocks.

Do not solder directly onto the battery.

Do not allow the battery to get wet.


And finally, do not disassemble or modify the battery.


Li-ion stands for lithium-ion. It is the most commonly used chemistry for Laptop batteries because of its high charge density and compact size. However, these perks come with great safety concerns. If lithium comes in contact with air, it will burn violently.


If you were to crack open a Laptop battery pack (something we DO NOT recommend because of the possibility of shorting out a battery and starting a fire) you would find the following.


This is a picture of a typical Li-Ion laptopF2019B battery with its casing removed. A common misunderstanding is thinking these batteries are made from one solid cell: False. Laptop batteries are made from multiple battery cells that are arranged in specific ways to attain the desired voltage and amperage. (Please refer to our Serial and Parallel Connections blog located here for more information).


Temperature sensors- monitor the battery temperature.

Lithium-ion cells- Store energy.

Voltage Converter- maintains proper levels of voltage and current.

Notebook connector- Used to transfer power between the battery and the notebook.

Voltage tap- which monitors the energy capacity of individual cells in the battery pack.

Battery charge state monitor- a small computer that handles the whole charging process to make sure the batteries charge as quickly and fully as possible.


Lithium-ion Cells (Source: OmniBook 6000 HowStuffWorks.com)


As with most batteries you have an outer case made of metal. The use of metal is particularly important here because the battery is pressurized. This metal case has some kind of pressure-sensitive vent hole. If the battery ever gets so hot that it risks exploding from over-pressure, this vent will release the extra pressure. The battery will probably be useless afterwards, so this is something to avoid. The vent is strictly there as a safety measure. So is the Positive Temperature Coefficient (PTC) switch, a device that is supposed to keep the battery from overheating.


This metal case holds a long spiral comprising three thin sheets pressed together:


A Positive electrode

A Negative electrode

A separator


Inside the case these sheetsF1739A, are submerged in an organic solvent that acts as the electrolyte. Ether is one common solvent. The separator is a very thin sheet of microperforated plastic. As the name implies, it separates the positive and negative electrodes while allowing ions to pass through. The positive electrode is made of Lithium cobalt oxide, or LiCoO2. The negative electrode is made of carbon. When the battery charges, ions of lithium move through the electrolyte from the positive electrode to the negative electrode and attach to the carbon. During discharge, the lithium ions move back to the LiCoO2 from the carbon.


These cells are controlled by a circuit board. It is usually located against one of the interior walls of the casing. Omnibook XE,The circuit board regulates how the cells work for both the process of discharging and recharging energy. It makes sure that your battery is not overcharged when charging, and it makes sure that each cell drains the same amount so you can have a longer run time.

Whenever you power up your laptop

Whenever you power up your laptop you may not think about the history that has gone on to help us get to where we are today. Our laptops have come a long way to become as powerful as they are, but what we do not think about is how far the laptop batteries have come. The history of laptop batteries is an amazing one. They have come along way, and in the end they still have a long way to go before they are perfect. However, we can be happyF2299A,that we have learned from our mistakes and come up with a battery that is lighter and longer lasting than older ones.

The laptop is a great thing. It allows you to use your computer without having to be plugged up to a wall. However, back in the day you could not run your laptop off the batteries alone for too long. Thanks to people always looking to improve what we already have, we have made great jumps in the history of the batteries. When we think of laptop batteries many of us think about the rechargeable ones that we use today. However, did you know that they used to make laptops that ran off AA batteries? Not only did it take a lot of AA batteries to run a laptop, but they could not run it for long. Many people today remember the laptops running off the very heavy lead acid based batteries. Not only did these batteries not last long, but it made your laptopF3172A, very heavy. You might as well been carrying around a desktop. Since then the history of laptop batteries have kept improving. In fact, after we turned in the old lead acid batteries we moved on to the nickel cadmium batteries.
Third, the problem people have with Python’s “functions” is actually that they don’t understand the reason behind things like "".join(stuff) or even worse str(mything) which then just calls __str__. The problem is in most other languages Objects have methods you access with “.” and rarely do they use multimethods. Python however mixes these multimethods with regular methods, and sometimes inconsistently. This design choice has advantages in that common things like converting to a string don’t pollute the public name spaceion ZT1000,, but the disadvantage is that it is honestly kinda ugly.


If you can deal with these three things, then Python is actually very nice and easy. The most important advantage to using Python that I’ve found is that what you want to do and what you end up writing are actually very closely aligned. Given the above “problems” with the language (to outsiders) the end result is actually very readable. Things like docstring comments (if you start a block, don’t use pass to defer it, write the comment)Pavilion XZ200, and self for everything (never having to explain scoping is great) just make it easier to see what’s going on.


#10) Pinax

Pinax is a series of reusable Django components that you find on almost every site done today. Here’s the short list from their site:


openid support

email verification

password management

site announcements

a notification framework

user-to-user messaging

friend invitation (both internal and external to the site)

a basic twitter clone

oembed support

gravatar support

interest groups (called tribes)

projects with basic task and issue management

threaded discussions

wikis with multiple markup support

blogging

bookmarks

tagging

contact import (from vCard, Google or Yahoo)

photo management

Now, normally when someone throws a laundry list of components at you,Pavilion ZT1100,the experienced reader says, “Yeah, those will be great until I have to modify the damn curved corner to be cornflower blue.” In this case though, I’m seeing that because of Django’s heavy focus on allowing for modular components right from the start, you can use these or modify them easily without having to tear your hair out. If one of the above components doesn’t quite work, then you should be able to (in theory) write your own and plug it in.


My guess though is that you’ll probably end up just modifying what they have since there’s like 90% of the functionality you’d find on nearly any social network site. In fact, I’d say Pinax is basically the same functionality that companies have paid huge consulting fees to have implemented.


I would be very careful running to use this on a major site or paid gig before you’ve actually sat down and put something real-ish together. James Tauber and friends are more than eager to probably work with you if you got ideas (and hopefully code), but if you start drooling when you read the above list and then expect it to magically reduce your time to delivery for a million dollar project, then you are probably going to get bitten.


Then again, I could see using Pinax to start many different sites and use it as the basis for getting your potential users/customers to tell you what they don’t like. My experience has been that users can’t tell you what they want since theyOmnibook XT1000, can’t conceive of the web site in their head, but if you show them something they’ll have plenty of ideas and needs for you.


That’s My One Battery Review Of Django

Alright, so I’ve laid out what I like, but I really only found these things by giving Django a go. Will I use it in the future? Sure, I’m planning on changing Son of Sam’s name to something more reasonable and doing a couple of sites with it. Now that I’ve used Django, I’m just gonna integrate SoS with Django and make things easy on myself. The sites I want to do can easily reuse portions of Pinax so it’ll be interesting to see how far along I can get before I hit a wall.


At this point, the only warning I’ve received is that deployment is hard, but then, Omnibook XT1500,deployment is hard with every web application once you start getting serious. No reason why Django would be any easier or harder.


You Wanna Try, But You Don’t Know Python?

I’ll tell you a secret, I didn’t type much Python to go through this tutorial. I actually just whizzed through it and cut-paste most of the code right off the web page. My goal was to go through the sample to understand the system, not to exercise my typing abilities. If you don’t know Python, then just try some cut and paste yourself.


Or, if you want to just try setting up a real Django app for yourself, try this tutorial on getting Pinax running. That’ll let you play with some of the gear without doing much.


Then, try out the tutorial anyway. F2019,It’ll be interesting to see how far someone can get without actually knowing much Python.


Of course, if you find you need to first learn some Python, then please don’t tell anyone I told you to skip the RTFM ritual.

One Laptop Battery Later And I'm A Django Fan

One Laptop Battery Later And I'm A Django Fan

I haven’t had much time to do any coding since I’ve been studying music full time, and I’m taking these two weeks to work on all the pent up projects and work I’ve been ignoring. One of those projects is to finally try out Django tonight. I’d been avoiding it because I didn’t want to Hp laptop battery,get sucked into yet another web application framework I didn’t need, but after spending one laptop battery going through the tutorial I just got one thing to say:


Django Fucking Rocks

Now, I know that when I drop the f-bombs and do crazy shit like disagree with people they get their panties in a bunch and call it trolling. Calling disagreement trolling is kind of the inverse of Godwin’s law but I simply gotta throw the passion in there and say it FUCKING rocks.


However, I’m about to qualify this sentiment with the reasons why, based on my experience as a web developer for nearly every industry that uses software, Django is truly good stuff. Most of my review of Django so far is based on this experience, and it in noF4098A, way states that your framework isn’t also good.


As you read this, turn off the binary bit for a minute and realize that I’m going to tell you what I like about Django so far, not how Django is better than your framework.


Got the bit turned off? You sure, 'cause I don’t want to get emails debating me that start with your framework also does this stuff. That’s nice, but not what I’m talking about. What I’m talking about is what I like about Django.


And now, in order of how I encountered them, the top 10 things I like about Django.


#1) The Documentation

The Django Documentation is pretty damn good so far. I think modern web F4809A, frameworks generally have good free documentation, but so far Django’s has been very easy to follow, attractive, and dead accurate. I’m sure I’ll run into errors here and there, but when I get comments like this from the community:


[ubernostrum] zedas: one thing that’s not so well-documented, actually is the admin.

I know that the people doing the documentation care enough to take changes, patches, and feedback.


Currently I’ve read the Overview, Installation, Tutorial and about 1/3 of the Django Book 2.0 and I’ve browsed many random topics like signals which look very useful.


Based on this review of the documentation, I can say that I haven’t hit any major errors, problems with clarity, or problems finding anything.


#2) The Community

I just gotta say Python people are pretty nice. Sure, geek communities everywhere are full of weird people, and I guess that’s why I get along with them so well. But in the Python world, I’m probably the meanest guy they know.


What’s more important though is they started helping right away. I was on the #django channel on irc.freenode.org and just mentioned that I was learning Django. Now, I didn’t actually ask for help, since I’ve been doing this long enough to figure this stuff out fairly quick, but people started pointing meF4812A, at better docs without me asking.


It’s refreshing to run into a group who’s attitude is, “Oh, newbie, ok read this and that and that, and oh that too but watch out for…”


#3) The Admin

For those of you who don’t know, Django has this cool feature called The Admin which uses your object model and the components you’ve installed in your site to provide you with a fully functioning admin console. With this you can create sites, alter objects, list, delete, sort, filter, drill down, make tables, everything you do in 90% of all enterprise applications.


Going through the admin, and how easily you can make your own modifications, I just feel angry because I’ve had to write that same dumb “sortable-table-of-objects-with-drill-down-filters” over and over and over. Each time in a different framework with a different language. I look at the “log of things you’ve done” 11-001319411-001to the right and cry. I’ve had to implement that over and over. Each time it was “always way different from the last time” and then it was just exactly what Django has staring at me and mocking me.


I say, if you’re doing the typical enterprise bullshit coding that’s nothing more than a ton of tables with sorting, you should seriously be trying out the Django Admin. Even if all you do is use it as a way to get a prototype in front of users for initial feedback and discovery it will still save you mountains of work later.


#4) The Admin Docs

Once you install docutils this wonderful world opens up where gnomes run around singing and telling you naughty little secrets about your application. With that one skeleton key, your Django Admin will actually let you drill into all your models and views to see their structure. No more dumping SQL databases to find out the name of that damn table for the Person class and whether there’s a VARCHAR on it causing you problems.


Instead you just hop over to the console and browse around. sario 2100(compaq 2100),Take a look, see what the models are doing, glance at the views. Forget the template syntax? It’s there. Forgot what URL to use for the user view? It’s there. Need to know all the tags? Yep, all there.


#5) The Conferences

As I work on this little poll application in the tutorial, I remember that I’m going to Prague for EuroDjangoCon 2009 to give a keynote. I’ve been to many conferences, with last year being the most I’ve ever done, but this conference season I only have time for one. How could I pass up such a cool list of speakers, nice group of people, and a visit to Prague?


When I think of the Python conferences I’ve been to, I’ve liked all of them quite a lot. They are rarely heavily commercial, usually very cheap, and have a much more laid back community feel to them.


The coolest thing though is meeting John Draper at PyCon. Not sure why he was there, but that was pretty cool.


#6) The Modularity

I mostly ignored Django for most of its life because I thought it was just another web framework. Yawn. Yay. Presario 2500(compaq 2500 battery), A framework. Joy. Models. Views. Controllers. Oh boy, I think I’ll just stick to one of the hundreds I already know.


Then I saw James Tauber talking about Pinax but more importantly, talking about how 2008 was the year of modularity (he used different words). Apparently, Django has been pushing the idea of having discrete “applications” that act within a “site” as cooperating but separate components.


The idea is that, unlike other “components”, these ones act like decoupled little web sites you can put in and configure for a site, and through the magic of HTTP work seamlessly. From this you can have fully packaged applications that implement functionality you need, like authentication, or caching, or tribes without having to gut your whole application and muck around in code.


If that particular component isn’t working well for you, then you can just modify it, or write your own. Since it’s loosely coupled, and you hopefully kept it that way, then the change isn’t too painful.


This change in the architecture Presario NX9010, of a site from “the site is the application” to the “site has many small applications” is powerful to me. I know other frameworks tried similar things, but since they tried to implement their plugin/module systems through code rather than web plumbing it tends to be more brittle.


Obviously, this can’t be all roses, as I’m sure anyone who’s tried to use Django apps will say, but the fact that there’s a concerted and coordinated effort to make it a central part of Django means your burns will be only 1st degree.


#7) The Simplicity

At first, I was pretty worried when going through the tutorial because it had me returning HttpResponse objects in the buff with no help. As I went through it though they corrected this, and it turned out that much of the code I was writing (or just pasting, 'cause I’m lazy) was very small for a lot of work done. Presario NX9000Each paragraph of the tutorial made the code for a generic CRUD application smaller and smaller until they showed generic views eliminating most of it.