Posted by sunny27 on Feb 08, 2010
Dell D430 Laptop information
DELL latitude d430 battery is on sale in June 2006 an upgraded version of the D420 models, compared with D430 although the appearance, and there is not much changed, but the performance still be strengthened. Currently Xiao Bian receive the message, this D430 is engaging in a business promotion, send packages and mouse combined with original power adapter or Bluetooth Jinshou 9799 yuan, for a friend interested in this product are sure not to miss the.
DELL Latitude D430 or the extension of the overall look and feel of the D420 design, physical size, weight and so inherited the previous model! Still using a 12.1-inch WXGA LCD screen, the whole size of 295 × 209.8 × 25.4mm, weight 1.36Kg, In the portability dell latitude d520 battery has shown very good!
Configuration, D430 uses Core 2 Duo low-voltage U7600 processor clocked at 1.2Ghz, 2 cache 2MB, FSB 533Mhz, Intel 945GM chipset, 1GB RAM, 60G hard drive, 24-speed COMBO drive, integrated GMA950 graphics, pre – installed WIN XP Pro System!
Interface prepared a USB 2.0 × 3, IEEE 1394 × 1, Type2 pc card slot, SD card slot, Smart Cardleader, Gigabit Ethernet, modem, 15-pin miniD-Sub, TPM security chip, voice input and output and so on. Endurance capacity due to use of low-voltage CPU with dell latitude d430 battery, so performance is still more prominent D430!
Posted by sunny27 on Feb 08, 2010
IDF UltraCell XX25
Foreign companies canon bg-e6 vertical-grip, fuel cell life show up to 18 hours
Fall Intel Developer Forum (IDF) has been kicked off the U.S. stand. Following the success of the Beijing leg, IDF once again returned to the United States. The IDF will focus on mobile, digital home, digital enterprise and scientific research fields, it represents Intel in the next year or even longer period of a course of action.
Of the IDF at this conference, UltraCell companies showcase the latest fuel cell, model XX25. GETAC’s V100 notebook canon eos 20d vertical-grip will be the first to use this fuel cell, it is learned, XX25 fuel cell provides 25 watts of sustainable power, the battery itself is also controlled by the weight of 1.24 kilograms or less. XX25 fuel cell can provide 12-18 hours of battery life.
UltraCell XX25 fuel cell prototype canon eos 30d vertical-grip
V100 reinforced version of tablet notebook dell latitude d430 battery
GETAC V100 Notebook beginning of the year is already published, it is a tablet notebook, using magnesium alloy shell, mainly in the environment, the use of relatively harsh conditions, with dust-proof and waterproof features. Such as construction sites, mines and so on. V100 tablet notebook dell latitude d505 battery with 10.4-inch LCD screen that supports 180-degree rotation, built-in 1.3 million pixel camera, equipped with a frequency of 1.2GHz Intel Core Duo ULV processor, with 2GB of memory.
Posted by sunny27 on Feb 07, 2010
Copper jumped close up
LME price Dell Battery movements in the U.S. Federal Reserve yesterday cut its base rate by 50 basis points, the electronic disc soared 292.5 U.S. dollars a day of crude oil a new high momentum, the dollar continued to weaken, boosting the fund within the overall trend. Of these, short covering into the price uplift of the passive active force in March copper was down trend in the total open interest, the price broke through 7700-7750 U.S. dollars a high platform, so far the initiative long enough energy, and the short-term interest rate policy on the price incentives large stable market sentiment, it will choose the more long-term price direction. At least we believe that entities in the current atmosphere of macro-indicators is still unstable, the copper must also be wide-shock situation, the situation continued to rise in one direction would have dell latitude c600 battery difficulty maintaining.
Macro level, last night announced a new round of the U.S. dell latitude d410 battery real estate index quite optimistic about the U.S. August housing starts fell to 1.331 million annual rate, below the estimate of 1.35 million, and in July of data to be cut; replacement ratios U.S. August housing starts fell 2.6% in July fell a revised 6.9% decline initially reported 6.1%; construction permits, building permits in August dropped 5.9 percent, the U.S. real-estate weakness continue to deteriorate.
However, the market has not much response to the data yesterday, is expected followed by a larger entity indicators, which will guide a more stable price direction. On inflation, the latest CPI data on mild U.S. fell 0.1 percentage dell latitude c610 battery points, but the recent crude oil’s gains will increase the risk of inflation.
Agency is expected to last, WBMS and ICSG judgments on the shortage of copper also boost the supply of copper, consumption is still their focus on the BRIC countries that rapid increases in the demand.
National trend, on Wednesday the performance of full-Shanghai copper outer disc appear more rational, the price divergence in the 67,000 yuan, the current 0712 contract closed at 67,000 yuan a temporary high platforms. Afternoon operation, after more than a single still holds, but it should pay close attention to trends outside the disc, or can choose a high point of profit-taking open positions. Outer plate at the top will be the first encounter in 8000 U.S. dollars an integer dell latitude d420 battery off the pressure.
Posted by sunny27 on Feb 05, 2010
Xinhua Battery
Wuzhou Xinhua Battery canon bp-945 battery Co., Ltd. in the capacity to restore domestic sales, based on the integration of international markets, resources, and strive to increase exports to achieve the international market continues to expand, in 2003 export volume accounts for the battery company-wide 75% of total production.
Xinhua battery last year actively pursuing regional agent system and improve the distribution network, implement effective direct marketing strategy to stabilize the domestic market sales and efforts to expand sales of the battery on the 7th, so that on the 7th battery sales over the previous one annual growth of 28%. To achieve bigger and stronger, “Xinhua” brand objectives, the company accelerated the integration of the export market, Xinhua canon np-e3 battery, brand expansion, the pace of a company’s sales force to go out to West Africa to promote and sell products, so that “Xinhua” brand, in Africa, well-known battery brand, and make full use of the advantages of the Internet to expand the brand’s influence in the international market, at present, the company’s products cover more than 10 countries in Africa in 2003, the battery company’s export volume has accounted for 75% of total production.
Xinhua battery company also exports to market information, guidance, use the “good faith” a good word to balance the relationship between the size of supply merchants, so that not only take into account long-term cooperation and old customers, while maintaining jvc battery a small client jvc bn-v107 battery, and actively support our customers to develop new markets. The company’s documentation requirements according to the procedure for each client’s contract to regulate the management, registration, evaluation, archiving, ensuring the annual export 535.5 million batteries review of all contracts up to 100%, firm has 11 major clients, opening up international markets to expand exports confidence. Among them, Sunshine Company, Ming Chinese companies, three in Hong Kong’s export agent export batteries each contributed more than 4 million U.S. dollars, the new opened two new customer product sales are also expanding, thereby contributing to the battery exports increased dramatically.
In order to meet thinkpad t60 Battery market demand, Xinhua Battery Company in two ways to expand battery production. On the one hand to increase investment in technological reform to increase production lines and supporting facilities, expanding capacity throughout the year invested a total of more than 600 million launched three new large battery production lines, one on the 5th battery production lines, and transformed three old production lines, the packet of paper tie-line packages are not rolling process to not process, the production efficiency greatly improved. On the other hand the implementation of low-cost expansion, take advantage of “Xinhua” brand to expand outside the processing and outward processing point of strict latitude d520 battery product quality control, strict management on the production site, effectively easing the shortage of battery export Xinhua tension , win more market share.
Posted by sunny27 on Feb 03, 2010
Iron battery technology breakthroughs
BYD F1 Dell Inspiron 1420 Battery, or will have electric car market at the same
Moderator: You may also be referred to the F3-e, I also mentioned at the beginning, the media commented that, F3-e is the BYD in the future be able to beat other rivals as a “trump card”, you are such a thought do?
Xia Zhi-Bing: We also hold this view, the electric car is our own call it our own “nuclear weapons” just when I say “333″ strategy inside the last three years of strategy. Indeed, we had to do when the car, when there is this idea, we have to do the battery is the world’s top experts in business, we build up the brand of motor vehicles, the future introduction of electric vehicles, may be we are the first, and also the car we had to do dream Dell Inspiron 1501 Battery, and a basic condition.
So we launched F3 on the basis of F3-e, the current car to do this test, the last three years, is through the concept of electric cars or electric vehicles the technology come and go to break the tradition of the original automotive industry by the engine or transmission technology so dominated the field, through technology, generation gap, to break the industry pattern. After all, foreigners do the engine did 100 years, people’s accomplishments than we do have a deep accumulation, we have more than him in this area, relatively speaking, is more difficult. But the battery industry, they are in front of us is “primary.” Through this advantage, through the formation of technology, generation gap, to break the pattern Dell Inspiron 1520 Battery of industry now. This is our future, or we think is a “nuclear.”
Moderator: There is a lot of User comments, said he was looking forward to this pure battery electric vehicles F3-e-market, because oil prices are now too expensive.
Xia Zhi-Bing: The Future We have a family, not just out of F3 in this model will be F3, next year in March, there will be listed on F1 this model, which was listed, so if the research and development to promote optimism, it is possible we have F1 hybrid , and the F1 2 conventional gasoline vehicles listed at the same time, I have not previously spoken in public, this optimistic message. Because at present we have made some breakthroughs in the field of batteries, because we have a technology called iron fujitsu lifebook b6220 battery technology, has made some breakthroughs, has made an industry of it, if the promotion goes well, probably around March next year, We will also be on the F1 car was electric cars same time.
Posted by sunny27 on Feb 03, 2010
Important innovation in point of lithium-ion battery
Lithium iron sony np-bg1 phosphate oxygen vacancy: According to independent research and development of a unique synthetic method to prepare a reversible storage capacity of 160mAh / g of oxygen vacancies lithium iron phosphate cathode material, recycling 500 times the capacity no attenuation, especially with a high magnification (10C) discharge capacity.
Lithium Cobalt Nickel Manganese: You can replace the lithium cobalt oxide lithium nickel manganese cobalt cathode material was successfully developed, the development of a unique lithium precursor synthesis and processing technology, 80% of the cobalt has been replaced by manganese and nickel, and realized its crystal particle size control, synthetic materials, a reversible capacity of 165mAh / g, higher than that of lithium cobalt oxide 10%, cycle life of up to 500 times, while the cost of less than 50% of lithium cobalt oxide has been in a small trial built on the basis of an annual output of 150 tons of pilot lines.
Improve the lithium nikon en-el3manganese oxide spinel: developed with independent intellectual property rights of a Al2O3 surface modification technology to produce a reversible capacity of 107mAh / g, 55 ℃ cycle capacity retention rate of 200 times greater than 90%, is the first one available in the hybrid battery with high power lithium-ion battery materials, protects the major projects of high-power electric vehicles, lithium-ion battery the smooth progress of the project.
Composite anode materials: development of a composite anode materials, reversible lithium storage capacity has reached 600mAh / g, reached the international advanced level.
Graphite Nano-Fiber Conductive Additives: To achieve the right carbon fiber diameter and length distribution of control, develop a graphite nanofibers conductive additives, solving the localization problem of nikon en-el4 such additives.
Battery Research: 2004 Star Constant this material-based high-power hybrid cars with lithium-ion nikon en-el4a batteries fully electric vehicles passed the 863 major projects testing the unity of the organization than the power reaches 1200W/kg, the performance ranking of international advanced level, star-heng 10Ah high-energy type and 7.5Ah high-power lithium-ion battery through the United States UL safety test, becoming the first Chinese mainland through a UL-certified Li-ion power digital camera battery, battery for this kind of paved the way for the international market.
Posted by sunny27 on Feb 03, 2010
Targeting future and achieve industry
Than the fujitsu lifebook e8310 battery existing carbon materials (372 mAh / g) a higher-capacity anode material for studying the hot, the tin oxide was first found to have excellent lithium storage performance, leading people began to study a series of metals and oxides based on The anode material, however, tin, silicon, etc., as anode materials for lithium-ion batteries a fatal question: charge-discharge process, with the embedded lithium repeated extrusion, volume change of up to 300% -400%, resulting in the mechanical stability of the lower electrode, powder materials are also due to the gradual failure occurs, the cycle of poor performance.
Huang Xue-Jie said, nano-alloyed tin-based materials can overcome this weakness has been obtained in the SONY’s Nexlion application, the physical location in 1998 issued a paper pointed out that the nano-technology is to improve the cycle performance of such materials, an effective way. Domestic Chinese steel Research Science and Technology Corporation in the support of 863 has been initially developed with certain cyclic stability of the tin-based materials. Around the world, with a high specific capacity fujitsu Esprimo Mobile V5515 Battery of the non-carbon negative electrode material is in a large-scale commercial application of the initial stage, using three-dimensional sets of fluid materials, lithium-ion battery anode materials to improve the electrochemical performance and is the current international field of lithium-ion battery A major research focus. Compared with the traditional two-dimensional copper foil, three-dimensional sets of fluid materials, active substances can provide a more favorable environment conductive to shorten the average electron transport within the porous electrode distance, thereby reducing the resistance of a pole piece, reducing the high current charging and discharging of the electrode produced a very phenomenon; more importantly, the three wiki body can to some extent alleviate the high-capacity active material than the “volume effect”, reducing stress on the electrode structure damage, thereby improving the electrode cycle life and charge-discharge efficiency.
Currently, Suzhou Star Constant Power Co., Ltd Li-ion power battery power has reached more than 120Wh/kg, accounts for the domestic electric bicycle lithium-ion battery for more than 80% of the market, some products have entered the international fujitsu Esprimo Mobile V5535 Battery market.
“Eleventh Five-Year” period, 863 plans to continue to provide support for vehicle power battery and energy storage battery research and development of key materials, launch a series of projects.
Huang Xue-Jie said that with the power type lithium ion battery materials, the process of industrialization in-depth, it will greatly promote the motive power industry, technological advances, in terms of safety, high-temperature cyclic nature of life, or from in terms of manufacturing costs, will be the motive power of the product promotion and market development to a new level. On the other hand, the new, power-based lithium-ion fujitsu Esprimo Mobile V5555 Battery cathode materials for the development of upstream raw material producers also put forward higher requirements for the upstream industry in the purity of the product as well as manufacturing cost, the technological progress and development.
“I believe the next few years, lithium-ion battery powered electric vehicles will gradually occupy the fujitsu lifebook b6210 battery market.” HUANG Xue-Jie said.
Posted by sunny27 on Jan 25, 2010
Solar Net beacon light alternative to the use of Dell Battery lights
After more than a year research and development, Qidong City, Glencore Solar’s high performance environmentally friendly solar energy network beacon light yesterday by the Urban Ocean and Fishery Board for approval, in the city promoting the use of marine fishing vessels.
Fan Zhang marine fishing nets and drift nets need to use net operating beacon light illumination, display operating range, to prevent the wound. According to experts, old-fashioned network beacon light battery for 2-3 days once a boat nets need to replace a inspiron 1420 battery , inspiron 1501 battery 45, the average per vessel per year over the use of batteries in 2000. The city’s nearly 400 sail net, net fishing vessels of more than 200 boats a year for fishing the ocean dumping of used batteries up to about 1.5 million.
Last year, the City of marine and fisheries departments in the nation’s coastal fishing launched the first use of waste battery recycling. Radically reduced from used batteries for fishing on the marine environment, pollution, development of high-performance environment-friendly solar energy network beacon light to replace the original old-fashioned network beacon light, it is imperative.
Net new type of solar beacon light to solar energy into electricity, can guarantee 10 consecutive rainy days at the normal light. Such as the city’s comprehensive promotion of fishing vessels will be able to significantly reduce pollution, fishing with used batteries.
Expert: NB cell phone use lithium-ion batteries need to re-design of insecurity
Japan’s Tokyo University of Technology, Professor Masataka Wakihara recently inspiron 1520 battery , inspiron 1521 battery said that laptops and cell phones use lithium-ion batteries the underlying technology is unsafe, need to consider re-design.
Wakihara said that most laptops and cell phones use lithium-ion batteries are potentially dangerous underlying technologies, and thus fail to meet the standards required by its mission. Therefore, the need for design improvements.
Wakihara also said: "In this regard, the battery manufacturer is still in the learning phase, as manufacturing technology is not mature enough. The problem is, the current lithium-ion battery there is a fundamental flaw in the design, to avoid security problems, they must be thoroughly changes in manufacturing methods. "
Wakihara lithium-ion battery will be described as a "dangerous power box." Wakihara point of view also supported by the Japan Industrial Technology Association, the National Senior (NIAIS) battery Kuniaki Tatsumi, head of research support. Tatsumi said: "The battery manufacturers very little attention to the latitude x1 battery , latitude x200 battery , latitude X300 battery safety of the battery design."
Last Tuesday, Nokia had announced, because of overheating risks, will be within the framework of the global recall of 46 million mobile phone batteries affected more than 50 models of mobile phone models. Saturday, Indian users Rajesh Shastri also disclosed that he used the Samsung "schn 356" mobile phone exploded unexpectedly.
In fact, since last year’s Sony laptop battery fire incident took place, the people of lithium-ion batteries are also increasingly concerned about the safety. But before that, experts have been saying, lithium-ion battery is still the best and safest choice.
Notebook PC, mobile phones, digital cameras, the industry groups to develop safety standards for lithium batteries
In order to develop safety standards for lithium batteries, notebook computers, mobile phones, digital cameras, the relevant industry groups are currently carrying out business cooperation. Electronics and Information Technology Industries Association (JEITA), battery industry will be (BAJ), information and communication network Industry Association (CIAJ), imaging equipment industry will be (CIPA) and other four groups have begun to cooperate in establishing the safe use of Li-ion latitude d820 battery , latitude d830 battery technology standards. Since last year, lithium batteries overheating and rupture of the accident, abnormal frequency, for which industry groups will cooperate to develop safety standards, to eliminate concerns about consumer batteries.
For the safe use of lithium batteries, JEITA and BAJ have been working to develop a "safe use of notebook PC batteries Manual." The manual will be 4 groups estimate that as a basis for discussion. The newly established security standards are expected in the future will be the JIS specifications, and will declare IEC and other international specifications.
At present, the economy, Trade and Industry is considering lithium batteries designated as "Consumer Product Safety Act of living" (Consumer Security Law) and specific products, and said it would help the industry groups to develop technical standards. Four groups to develop safety standards for consumer safety law will be discussed in reference to the progress of the implementation.
August 27, 2007 issue of "Nikkei Electronics" book published on the JEITA develop safety standards for lithium-ion batteries reported.
A playground for the Swiss Kyocera solar modules installed generating capacity of 1.347MW
Kyocera declared to be a football stadium in Bern, Switzerland, the company latitude d510 battery , latitude d520 battery , latitude d600 battery installed solar power generation system. The system’s generating capacity 1.347MW, "installation of the system in the stadium, is the world’s largest class" (Kyocera).
The stadium renovation in 2005, has installed solar power generation system. The original system has 5122 solar cell modules, power generation capacity of 850kW. Kyocera began in April 2007 the project, for an increase of 2808 modules, bringing the total generating capacity reached 1.347MW.
Recently, countries around the world are gradually installing solar battery module for the stadium. The main venue for the 2008 Beijing Olympic "Bird’s Nest" is currently installed generating capacity is roughly equivalent to 100kW of solar battery module, the module from China’s largest solar cell maker Suntech Power Holdings (SunTech Power Holding) manufacturing. In June 2007, the United States Major League Baseball’s San Francisco Giants as the team’s home – the U.S. city of San Francisco baseball stadium "AT & T Park" install 590 Sharp solar battery module manufacturing, power generation capacity of 122kW.
New silicon nanoparticles enhance performance of solar cells latitude d410 battery , latitude d420 battery
Scientists have been working to find better materials and methods to create high-performance solar cells. U.S. scientists, a new study found that in silicon solar cells formed on the surface layer of silicon nanoparticle films can enhance the ability of its energy conversion and reduce the battery’s own heat and prolong life. Relevant papers will be published in "Applied Physics Letters" (Applied Physics Letters) on.
The study was conducted by physicists at the University of Illinois Munir Nayfeh leadership, mainly targeted at the ultra-violet absorption and transformation. In terms of traditional solar cells, ultraviolet light leaking out of line either directly or by absorption of silicon devices, but it is converted into heat instead of electricity, which may affect the service life. In 2004, published in the "Photonics Technology Letters" (Photonics Technology Letters) in a study, Nayfeh confirmed that the UV lines with the appropriate nano-scale particles effectively combined to produce electricity.
In order to achieve practical results, Nayfeh and his colleagues conducted a new study. They first use its own developed a proprietary technology to larger silicon switch is made of discrete nano-scale particles, they will be issued in different colors of fluorescence. Then, the researchers of these inspiron e1505 battery , inspiron e1705 battery particles dispersed in isopropyl alcohol and wipe the surface of the solar cell. When the alcohol evaporates, the surface of the battery will eventually form a tight layer of nano-granular films.
The researchers found that if the solar cells covering the surface is the thickness of 1 nm blue fluorescent nano-particles thin-film, the entire cell will be able to transform more than 60% of the UV lines, but the visible light, the conversion rate of increase less than 3%. However, if the battery is the thickness of the surface covered by 285 nm red fluorescent particle film, then the ultraviolet ray can increase the conversion rate of 67%, while the enhancement of visible light can reach 10%.
Nayfeh that the performance of solar cells such improvements should be more attributed to the improvement of the battery voltage rather than current. He said, "Our study conclusions indicate that charge transfer within the thin film and nano-particle interface, the importance of the amendment."
Nayfeh said that the new coating process can easily incorporated into the current solar cell manufacturing process, while the costs are not an additional increase.
Universal 15-year lithium battery replacement into the plight of inspiron b120 battery , inspiron b130 battery , inspiron e1405 battery
Sony laptop battery recall incident a year later, a similar incident once again plagued Japanese home appliance businesses, the protagonist of this incident is Matsushita Electric Industrial Co., were recalled product is the cell phone lithium battery, this incident also shows that the battery industry is facing a The enormous challenge.
Recalled the most number of record industry’s
Nokia Tuesday announced that part of the Matsushita-made lithium-ion batteries overheating problems, the company will take the initiative to recall these products and for the user to replace the battery, it is learned, and the recall of events up to 46 million mobile phone. It is not clear that the company would recall and replace the number of batteries, but the number of recalled Sony batteries are projected to more than four times higher than the incident has become the industry’s largest battery recall incident, together.
Since August last year, Dell announced that Sony held a large-scale production for notebook computer lithium-ion batteries, the battery industry has been plagued by such incidents. Almost all the major computer makers have announced and recall of Sony laptop batteries, while Sanyo inspiron 9300 battery , inspiron 9400 battery Electric has recalled over mobile phone batteries and notebook batteries.
Battery recalls continue to occur on the one hand reflects the business-to-consumers more prudent and responsible attitude on the other hand also shows that the battery there are still many problems in production. Rechargeable lithium batteries in the past 15 years has been a laptop computer and cell phone industry, one important factor in the rapid development of lithium batteries is relatively cheap, light weight, environmental performance is good, much better than nickel-chromium batteries.
On the other hand, lithium battery current generated by larger, more complex manufacturing processes, heat and even easier to overheat, short circuit occurs when the consequences are more serious. Last year, some Sony laptop battery fire incidents have occurred. The recall Nokia Panasonic lithium battery allegedly occurred because the battery charger overheating.
It hard to recall the aftermath of the incident
Mobile phone industry and the notebook computer industry’s rapid development has inspiron 6000 battery exceeded the pace of development of battery technology, product features but also increasingly improved battery performance higher and higher requirements.
Lithium battery incidents occur frequently prompted some manufacturers to take a more cautious attitude. Toyota hybrid vehicle delay in the use of lithium battery plan. Nevertheless, industry experts still believe that despite the limitations of lithium batteries, but in the foreseeable future, it is still the most practical battery technology.
Sony announced this week that the company will spend 97.6 million U.S. dollars in Singapore to build a cell phone battery manufacturing plant in order to consolidate its market share. The plant will use more advanced lithium-ion polymer technology, the factory is expected to be operational by August next year, the initial monthly production capacity will reach 1 million by 2010 will reach eight million. Toshiba’s ongoing efforts to develop alternative energy technologies, such as fuel cells, this battery does not use chemicals, but the battery for commercial still have a long way to go.
Panasonic is currently the world’s four largest manufacturers of lithium batteries, the company said its the battery problem is generated in the manufacturing process. When used with an insulating layer to prevent short circuit damage occurs when the overheating arises. Nokia said that so far, Panasonic lithium battery overheating problem caused by only 100 cases were reported, but no serious injuries. However, Nokia will continue to take preventive measures to replace all the inspiron 1525 battery , inspiron 1526 battery , inspiron 1545 battery production date of December 2005 and November 2006 between the same origin as the Osaka battery.
Posted by ecsem1 on Dec 28, 2009
The machines with the shortest battery life tend to be those with desktop processors in them. Conversely, they also have tremendous processing power, so it tends to be a bit of a trade off. However, as they aren’t optimised for mobile working, they eat power VGP-BPS9/S, and they eat it fast, sometimes giving just 70 minutes off a full charge.
Now we come to the battery, which is the bane of the laptop computer user. We’ve already discussed processors, but they have a large part to play in the battery life of a laptop. Going back three or four years, the most you could expect from a single Dell Inspiron 510m Battery, fully-charged laptop battery was two hours of work time, or less if you were taking on processor-intensive work or DVD playback. Now, thankfully, you have a few options.
That’s why such machines are often sold as ‘desktop replacement’ products, rather than laptops. At the time of writing, the clues to look for in the specs are processing power in advance of 2.8GHz, and if you’re buying a Pentium or Celeron based system Acer BATCL50L battery, the lack of the letter M (ie Pentium 4 rather than Pentium M), or no mention that the CPU is mobile-optimised.
Longer battery life comes from chips that form part of Intel’s Centrino technology. The Centrino isn’t actually a processor itself, more a series of technologies designed to optimise battery life and wireless working. However, whenever you come across a Centrino machine Dell Inspiron 1721 Battery, it will have either a Celeron or Pentium processor within it that’s been optimised for portable use. And that means you can expect battery life at best touching the five hour mark.
the article is via : discount-laptop-battery
