Posted on November 18th, 2009 admin No comments
When most people think of the Lenovo ThinkPad brand, they think of the T-series notebook with the alloy unibody chassis, rubberized black paint, and boxy looks. What most people don¡¯t realize is Lenovo offers a small business line, called the SL-series,dell laptop battery which offers most of the same features at a much lower price. In this review we take a look at the 15.6¡å Lenovo ThinkPad SL510,its battery is the same quality as Dell G5266 Battery Dell Latitude CPi Battery, Dell Inspiron 8200 Battery, enovo thinkpad SL3000 battery and find out if it is a worthy alternative for users who don¡¯t want to shell out for the higher-end ThinkPad models.

Lenovo ThinkPad SL510 Specifications:

Windows 7 Professional
15.6¡å HD 1366 x 768 WXGA Anti-glare
Intel Core 2 Duo P8700 (2.53GHz, 1066MHz FSB, 3MB Cache)
3GB DDR3 RAM (2GB x 1GB)
320GB Hitachi 7200RPM Hard Drive
Intel 5100AGN, Bluetooth 2.0
Intel X4500M Integrated
Built-in 2.0M web camera
6-cell 10.8v 52Wh(lenovo battery)
Dimensions: (LxWxH) 14.9 x 9.75 x 1.45¡å
Weight: 5lbs 11.5oz
MSRP: $1,224 ($989 Street)
Build and DesignThe SL-series ThinkPad is the toned-down version of the more rugged T-series¨Cthinkpad t61(high capacity thinkpad t61 battery). Dell G5266 Battery Dell Latitude CPi Battery, Dell Inspiron 8200 Battery, The exterior shell is entirely plastic, but with a softer finish with rounded edges and a smooth texture, instead of the rubberized paint on the more expensive models. The shape is also different, with sloped sides, instead of the flat sides seen on the higher models. Overall it has a more consumer appearance that might be more inviting to some users. Compared to the SL500, Dell G5266 Battery the SL510 has a few aesthetic changes, including a redesigned screen hinge assembly, and a few minor body tweaks. Side by side though, they still look almost identical.

Build quality is nice compared to consumer-targeted notebooks, but a step under the T400(new thinkpad t400 battery) and T500, which offer alloy unibody frames and stronger body panels. The notebook still has a very solid feel to it, with very little chassis flex.
The screen cover provides adequate protection for the screen, preventing visible distortion under moderate finger pressure. The keyboard and palmrest have good support, only flexing under strong pressure. The plastics feel durable enough to resist cracking under mild abuse, and the matte-black plastic finish shouldn¡¯t make scratches stand out as much as they would on a glossy notebook. For a small-business user, the SL-series is a nice step up from the average multimedia-oriented consumer notebook without the cost of a high-end business notebook.

Screen and SpeakersLenovo offers both matte and glossy screen options on the SL-series, both WXGA resolution. Our review model included the standard matte-panel, but if you enjoy the vibrant colors and increased contrast of a glossy screen, that option is available. The matte WXGA panel was average compared to consumer notebooks, and could have really benefited from a higher resolution. Color and contrast were weaker than normal, but this is common for basic non-glossy displays. Viewing angles were fine for an office setting where the notebook wouldn¡¯t be moved around a lot, but on your lap it was easy to see colors starting to shift. In testing we saw colors starting to shift when tilted 10 degrees forward or back. Horizontal viewing angles were better, staying true past 70 degrees from each side. Dell Latitude CPi Battery, Viewing brightness was perfect for bright office conditions, and with the matte finish partially visible outdoors.

Speaker performance was average for a basic mid-size desktop replacement notebook. Bass and midrange were lacking but for listening to streaming radio or YouTube videos it was fine. The SL510¡¯s peak volume level was fine for a small room, but felt lacking compared to other consumer notebooks. For a better experience, using the analog audio out to a pair of external speakers would be a better option. The best alternative would be using the HDMI out to pass a digital audio stream to an outside stereo system.

Keyboard and TouchpadThe keyboard was very comfortable to type on and felt very similar to the keyboards on the T-series ThinkPads. Dell G5266 Battery Dell Latitude CPi Battery, Dell Inspiron 8200 Battery, The layout is different, missing the extra row of function keys at the top, but the main area has been left intact. Key action was great, with a soft spring movement, giving off a mild click when pressed. Key spacing is nearly identical to regular ThinkPads, with barely any difference noted switching between my T60 with powerful thinkpad t60 battery and the SL510. The biggest difference is the newer keyboards are slightly quieter. Dell Inspiron 8200 Battery, On the left side of the keyboard are some quick-access buttons, used for muting system volume or the microphone, as well as adjusting volume levels.
Fujitsu¡¯s 45 nm logic chips for the development of new technology(A)

FablessASIC trend exacerbated by the global model sony vgp bps9, but into the deep sub-micron manufacturing process, the back-end series designed to enhance the complexity. Many companies hope to focus more on chip and system functions to set and market certainty,dell laptop battery and the chip¡¯s design, production, packaging, testing each link by a solid and credible partner to deal with. Is exactly what we saw this huge market demand was established in 2002 Alchip. From 2002 to 2004, specializing in high-end market in Japan (0.13um, 90nm, 65nm), with a unique design skills and professional manufacturing process management, has won the trust of leading manufacturers such as Sony and become our long-term partner, At the same time Alchip is also growing rapidly.

After 2005, with the rapid development of the domestic IC industry VGP-AC19V13, we began to devote the Chinese market. Have been several well-known manufacturers and national cooperation and achieve win-win situation. They focus on market positioning and front-end design, the Bank provides core back-end design, chip, tape, packaging, testing of the complete solution.

The domestic IC companies, and our initial contact, often doubt: if the back-end and production is responsible to you,Dell 310-6322 Battery, Dell D5318 Battery, Dell G5260 Battery, is not to say that we have to give up part of the profit margin to you? In fact, the Bank has been relying on its own core expertise in the design of the back-end design than other companies achieve better performance, lower power consumption, smaller die size, higher yields; the same time, with the wafer foundries, packaging / test long-term strategic cooperative relations firms to get than any other company can get more competitive prices. To cooperate with us down the company will find that, by partnering with us to achieve not only save their team designed to build human and financial resources to buy Sony VGP-BPS2A EDA tools, and we provide the ultimate chip prices than the cost of their own design and production of lower .

Since 2003, the first chip, a first-time silicon success 0.13um, 90nm chip,Dell 310-6322 Battery, a 2004 first-time silicon success to 2007¡¯s first 65nm chip, first-time silicon success, we have designed and produced more than 30 high-level SoC process , and has maintained a good record of silicon success. In 2004, we helped an industry-leading systems manufacturers on a 90nm chip, they already have to do costdown, we ultimately deliver a chip design than their own area on the chip die shrink 20% to reduce power consumption by 15%. In January 2006, in cooperation with the University of Tokyo, a 90nm manufacturing process VGP-BPS8 , VGP-BPS9, for the super-computer¡¯s processor chip, first-time silicon success. The chip with 60M gates, full-chip operating frequency of 500MHz.

We believe that the domestic IC companies in recent years will certainly appeal to the following rapidly into the 0.13um process. Hope that through our back-end design and production expertise in handling precision can be improved and domestic IC companies to achieve win-win cooperation.
It seems everywhere you will look companies are hawking their new, tiny, travel-ready netbooks. Wireless companies and cable companies are offering them as incentives in exchange for a service contract and Nokia announced a few weeks ago that they¡¯re working on a version of their own.

They look enticing: Why lug around a regular laptop when a slim,well battery like Dell GK479 sexy thing would keep you connected at the airport or in a far-flung hotel room. But I kept asking myself the same question over and over: If these machines are made almost exclusively for web browsing, why would I use a netbook instead of a smartphone?

I looked at two of these netbooks: Verizon¡¯s HP mini 1000 and AT&T¡¯s Acer Aspire One. For the most part, all these netbooks have about the same specs. Both of these had 2 gig intel atom processor and 1 GB of memory and nice battery HSTNN-LB31.So, the startup process is zippy and roaming the net is a pleasure.I have feeling he¡¯s the market segment netbooks will speak to: People who want little e-mail machines, people who,Dell D5318 Battery, with the exception of a rare YouTube video, won¡¯t be doing much in the way of multimedia.

Both netbooks had nice, bright screens and both of them featured a smaller than normal keyboard that took some getting used to but was definitely more comfortable than the keyboard of even the roomiest of phones. The HP Mini is definitely better looking, mostly because the Acer One has a protruding battery Acer BTP-42C1 that only a parent could love. But I don¡¯t think a regular user could find very many things that would make one a better choice over the other.

With a built in 3G connection, these netbooks offer amazing portability and the connection is fast enough that you won¡¯t get frustrated watching a video. And that¡¯s one of the huge perks: You can download a flash plug-in and watch internet video to your heart¡¯s delight.Dell 310-6322 Battery, Dell D5318 Battery, Dell G5260 Battery, It¡¯s also nice that you can install different browsers and use a feature-filled application like Skype.(more imfor:Aspire 3000 battery¡­¡­;)

Both netbooks had met their match. Their specs were just under the minimum requirements and I found my answer: Dell G5260 Battery, If something¡¯s going to take up more than pocket space, it better have enough oomph to let you experience the web¡¯s full richness.

Before Computex carried out , Intel ULV Platform (Ultra-Low dell laptop battery Voltage)laptop batteries are few, but only Acer Aspire T Series and Tsinghua Tongfang S30. Just as we expect, as before, ULV notebook platform at Computex Taipei this year, after the full-blown,a variety of ULV full debut such as Lenovo, the Shenzhou, Hewlett-Packard products , approachable price or even a threat to the traditional low-cost in this market, the time of super ¨C low-power thin notebooks become the focus of discussion.ULV low-power laptops have sprung up everywhere, becoming a new growth point of the notebook market, we have seen, including the domestic, Japanese, Korean department, as well as Europe and the United States and others like Dell GK479 are low-power market in the hair strength. Throughout the second half of the entire notebook industry in the Atom access into this market, when cold, ULV notebook much left undone trend.
Intel ULV platform equipped with a new generation of consumer-level Ultra Low Voltage processor with low power consumption, heat a small and so on. The platform is designed using a notebook computer, with a light and portable, moderate performance, low price,Dell Inspiron 6000 Battery, Dell Inspiron 9300 Battery, Dell Inspiron 9400 Battery, Dell 310-6321 Battery,Inspiron E1505 battery and so on. At present, the major brand notebook makers have already introduced the basic product. Here, Xiao Bian first to introduce the mainstream under the current ULV processor, and then I will introduce several are on the market selling ULV notebook platform.
mainstream Intel ULV processor performance analysis of
This is the best of times, Intel¡¯s efforts to strengthen market segments, for manufacturers and consumers a variety of processors, the procurement program, corresponding to the different needs of different price points of products, eliminate waste; the same time, this is the worst of times , we find that in the stores in the illegal use of complex processor business models to Kengpian consumers, in order to achieve the maximization of profits, so I, as a meal, we must be right before buying ULV processor platform, a certain degree of understanding.
Upper right figure we can see that the market is divided into the same mainstream platform processor ULV Celeron,Dell Inspiron 6000 Battery, Pentium,Dell GD761, Core 2 Duo, the same as with conventional voltage processor core is also divided into single-core and dual-core, while not exactly the same power consumption, we selected more attention when purchased.
Results from the test run, ULV dual-core processor performance advantages are obvious, even if the product is actually low-frequency single-core speed than a lot of strong high-frequency, so here we give priority to recommend dual-core ULV processor, The following recommended products for everyone that we will also focus on dual-core for the recommendation.
Dell KD476 battery (quotations parameter picture comment) is to the ULV Lenovo¡¯s ultra-low-voltage portable notebook computers with the introduction of a new 14-inch, as a ULV platform for notebook computers, the performance is not its advantages, but it¡¯s life long time and lighter weight to compete in the market an important bargaining chip. The models look all-black tone, leather and metal roof texture texture LOGO perfect fusion of classical reflected in the fashion atmosphere. At present,Toshiba PA3399U-2BRS leather texture, and metal roof LOGO
Lenovo IdeaPad U450A golden ratio using 14-inch 16:9 wide-screen design, is equipped with Intel Core 2 ULV SU7300 dual-core processor (1.3GHz frequency / 3MB 2 Cache / 800MHz FSB), Intel GS45 + ICH9M Chipset , 2GB DDR3 RAM, 250GB hard drive and ATI Mobility Radeon HD4330 dedicated graphics card.
Editorial: Lenovo Lenovo IdeaPad U450A-SSE , Inspiron 1300 battery as the ULV platform series models configured in a higher model, its overall performance was still very good, especially with discrete graphics to make it in the performance of graphics processing certain degree of protection. 6 hours long endurance capabilities and 2kg weight make it the best equipment away from the office.

If you have never heard of Lenovo computers then you need to pay closer attention to the things that are going on in the computer world.Dell Inspiron 6000 Battery, Dell Inspiron 9300 Battery, Dell Inspiron 9400 Battery, Dell 310-6321 Battery, Lenovo sounds familiar to the computer buyers of today because they are one of the largest personal computer manufacturers in the world but for people that have followed the personal computer business closely you may know Lenovo better by the name of the personal computer company it purchased a few years ago and that was IBM Personal Computers. Dell Inspiron 9300 Battery, Like IBM before them Lenovo is very strict on accessories for their notebooks and that goes for their lenovo batteries as well.

Have you ever stopped to wonder why you no longer hear the name IBM on television anymore when it comes to things like laptop computers and personal computers and small computers for business? The reason you do not hear the name IBM mentioned anymore is because in 2005 IBM thinkpad t60 battery sold off its personal computer division to a company out of China called Lenovo. In typical Chinese fashion Lenovo has avoided doing a lot of advertising here in the United States and relies heavily on the IBM brand and laptop computer models like the Thinkpad to be their source of advertising. If you do an internet search on the name Thinkpad you will find the Lenovo website and if you still want to purchase the IBM Thinkpad line of laptop computers then all you need to do is follow your internet search to the Lenovo website.There you will find the line of Thinkpad laptop computers but missing is the name IBM.

Lenovo has only been on the world stage for a very short time and after already becoming the largest personal computer maker in China Lenovo has taken the first jump into the world stage with their acquisition of the IBM computer line which now makes them the fourth largest personal computer manufacturer in the world. While you may not be seeing a lot of Lenovo advertising on the television you will find a strong internet presence that supports the Thinkpad line of laptops with a full line of
BroadLight release GPON Residential Gateway Chip

6/13/2007, a leading provider of GPON semiconductors and software, BroadLight today announced BL2348 GPON Residential Sony Dell Inspiron 9400 Battery, VGP-BPS8 SoC chip-level system solutions. BroldLight said that FTTH network BL2348 provides the performance required for CPE side, functionality and economy. BroadLight also said that the success of the field in GPON to help them expand their technology to the relevant market segment. FTTH applications, the future of CPE will be integrated into one box. Based on BroadLight PONRunner the BL2348 network processor chip can be sure that you meet the needs of next-generation home gateway products to help BroadLight product line from the ONT side to expand into the residential gateway products of apple powerbook g4 battery.

Chip maker, forecast that growth will slow

Global chip maker for vgp bps2c, the status of the industry has made to date estimate of the most bleak forecast of the industry growth rate this year, Dell Inspiron 6000 Battery, Dell Inspiron 9300 Battery, Dell Inspiron 9400 Battery, Dell 310-6321 Battery,less than 2%, lower than the previous 10% or more of the growth forecasts.

Semiconductor Industry Association (Semiconductor Industry Association), said yesterday, a microprocessor, Dell 310-6321 Battery, dynamic random access memory (computer batteries of lifebook t4210 battery and GD761 on which to run applications of basic memory) and the Nand flash memory key product categories, the average selling prices drop drastically, may result in chip sales in 2007 slower growth.

T-Mobile customers in the US who use the Sidekick handset have been told they almost certainly have no chance of recovering personal data lost last week in a service breakdown.

The affected data includes contacts, calendar entries, to-do lists and photos. dell laptop battery The data was held on servers by Danger, which was acquired by Microsoft last year. The Sidekick is T-Mobile's name for Danger's 'Hiptop' device, and the service for the device is supplied by the Microsoft subsidiary.

According to an update issued on Saturday by T-Mobile and Microsoft on T-Mobile US's forums, the affected data has "almost certainly been lost as a result of server failure at Microsoft/Danger".

"That said, our teams continue to work around-the-clock in hopes of discovering some way to recover this information," the update read. "However, the likelihood of a successful outcome is extremely low."

Danger's approach is to provide much of its handsets' functionality ¡ª from the camera to instant messaging ¡ª as hosted services, with the handset itself holding little more than a cached version of what was most recently synchronised to it. Dell Inspiron 2000 Battery, Dell Latitude LS Battery,Sidekick customers' data was being hosted in Microsoft datacentres at the time of the crash on Tuesday.

T-Mobile US and Microsoft said they will issue a further update on Monday to give details on "the status of the remaining issues caused by the service disruption, including the data-recovery efforts and the Download Catalog restoration which we are continuing to resolve".

Apologising for the data loss, the companies warned users not to reset their Sidekicks or let the battery drain, Dell Inspiron 2000 Battery, otherwise any remaining data on the handsets could be lost.

Telecoms analyst Dean Bubley, of Disruptive Analysis, said on Monday that it was difficult to judge the direct implications for Microsoft's trustworthiness in protecting users' data without knowing how far the integration process between Microsoft's and Danger's systems had gone.

"Interestingly, what that may imply is that, while there may well be cloud-computing growth, perhaps the fragility around it is where customers grow by acquisitions rather than organic growth," Bubley said. "Acquisitions are notoriously difficult to integrate."

Bubley also questioned the use of a cloud-based service for managing the personal information of handset users. "Memory is so cheap that I can't see any argument for not having a local backup on the handset," he said. "Unless it's high-resolution video, the only reason to not have local backup is if companies are trying to enforce lock-in."
Kindle gets better battery life, native PDF support
As Christmas approaches, Amazon has announced it has improved the Kindle's battery life when the wireless connection is turned on and will now be offering native PDF support for its e-book reader.

Both the battery-life boost and native PDF support will be available to owners of new Kindles and some older models via a firmware upgrade.

In a press release, Amazon said the Kindle now has battery life of up to seven days with wireless turned on compared with four days previously.Dell Inspiron 2000 Battery, Dell Latitude LS Battery, However, battery life with wireless turned off remains the same (around two weeks).

According to the release notes: "Battery power management for portable wireless devices is a complex technical area, Dell Latitude LS Battery, and the battery-life improvement announced today is the result of a six-month firmware improvement and testing programme."
People behind the China-based online attacks of Google and other companies looked up key employees on social networks and contacted them pretending to be their friends to get the workers to click on links leading to malware, according to a published report on Monday.

"The most significant discovery is that the attackers had selected employees at the companies with access to proprietary data, then learnt who their friends were," the Financial Times reported. "The hackers compromised the social network accounts of those friends, hoping to enhance the probability that their final targets would click on the links they sent."

The attackers used a popular instant-messaging program to distribute the malware link to target employees, George Kurtz, chief technology officer at security firm McAfee, told the Financial Times. The malware exploited a hole in Internet Explorer that Microsoft patched just last week.

Cisco, VMware and NetApp have announced a three-way partnership and a new architecture for secure, multi-tenant cloud datacentres.

The Secure Multi©\tenancy Design Architecture (SMDA), unveiled on Tuesday,dell laptop battery works across existing products from the three companies to isolate the IT resources and applications of different clients or business units that share a common cloud infrastructure, the companies said in a statement.

The three companies already have various partnerships between them,Dell Latitude LS Battery, Dell 2834T Battery, Dell 4834T Battery but this is the first time all three have joined in a single venture, which is designed to provide a global co-operative support model for customers.

SMDA is based on Cisco's Nexus Series switches and Unified Computing System, any of NetApp's FAS storage systems that run the company's Multistore partitioning software, and VMware's vSphere cloud operating system and vShield Zones virtual security appliance.

"The dynamic datacentre built on VMware vSphere, along with Cisco and NetApp technologies, will provide the foundation for both private and public clouds and the ability to move data and applications between these clouds," VMware chief Paul Maritz said in the statement. "A shared virtual infrastructure requires that resources for different tenants are isolated while delivering on promised service levels."

NetApp's EMEA marketing chief, John Rollason, told ZDNet UK that SMDA was aimed mainly at enterprise-level customers, as well as service providers looking to build secure cloud services.

"People typically like the idea of sharing infrastructure to reduce cost and improve utilisation, Dell 2834T Battery, but it's really been the ability to segment workloads that's been the concern," Rollason said. He added that the partnership between NetApp, Cisco and VMware did not mean the three companies were going up against their integration partners.

Logicalis is one of the UK systems integrators that will be offering the new architecture. Chris Gabriel, head of marketing at the company, told ZDNet UK on Monday that firms such as his were already good at putting together such architectures, but the partnership between NetApp, Cisco and VMware would give the end-user greater faith in multi-vendor cloud environments.

"The whole thing about cloud is a bit more about confidence at the moment,Dell Latitude LS Battery, Dell 2834T Battery, Dell 4834T Battery " Gabriel said. "[The announcement] is not meant to give the channel any more confidence ¡ª it's meant to give end-users more confidence, and that's obviously good for us

Google will offer an enterprise-focused Nexus Android handset through its new web store, Android chief Andy Rubin has said.

In an on-stage interview at CES with The Wall Street Journal's Walt Mossberg, Rubin told delegates that the web store ¡ª which currently carries only the Nexus One smartphone ¡ª would be used to sell a series of Nexus handsets according to segment, including an "enterprise version" and a "mass-market version".

Rubin referred to "the next version of the Nexus series which is an enterprise device", and suggested the 'enterprise' nature of the device could derive from several features.

"The definition of 'enterprise' is moving around a bit these days," Rubin said, adding that he saw a "big opportunity in cloud computing and cloud services", Dell 4834T Battery although other features could include a physical keyboard, better battery life and the ability to operate on all operator networks around the world.

Rubin noted that an enterprise Nexus phone would be a different model from the Nexus One, not just an enterprise version of the same handset.

Read this

Q&A: Android maker talks mashups and mobiles
Google's Andy Rubin talks nuts and bolts about the Linux-based phone software,Dell Latitude LS Battery, Dell 2834T Battery, Dell 4834T Battery the lessons of Sidekick, and the beauty of the iPhone...

Read more
Analysts have said that Android is not yet ready for the enterprise market, partly because it is still an immature platform with rapidly evolving versions, and partly because it does not yet offer enterprise-grade security.

The mobile email firm Good Technology released a secure client for Android in December 2009, but Google's platform does not have a centralised application signing process, instead relying on developers to sign their own apps.

Android handsets also cannot be wiped remotely ¡ª a feature Apple has used to promote the iPhone's suitability for enterprise.

In his interview with Mossberg,Dell Inspiron 6400 Battery, Rubin responded to complaints by early adopters of the Nexus One that there is no obvious customer support for the handset ¡ª the first consumer product to be sold directly by Google.

"We have to get better at customer service," Rubin conceded.

Since Intel unveiled its Core i7 quad-core mobile processors at IDF a couple weeks ago, several PC companies have announced mainstream and desktop replacement laptops using these Clarksfield chips. Many sites have reviewed the new platform¨Cknown as Calpella¨Cin whitebox notebooks, but so far I haven¡¯t seen many reviews of real Core i7 laptops,dell laptop battery partly because the industry is waiting on Windows 7.

Clarksfield is Intel¡¯s first mobile processor that uses the Nehalem microarchitecture, which means it has an integrated memory controller and supports DDR3, a faster type of memory that uses less power. These mobile versions also have an enhanced version of Turbo Mode, which dynamically boosts the clock speed of individual cores on certain tasks; HyperThreading (four cores and eight threads); and up to 8MB of shared cache. Dell Inspiron 1100 Battery, Dell Inspiron 5100 Battery, Dell 6T473 Battery Dell Inspiron 630m Battery,So far Intel has released three Clarksfield chips: the 2.0GHz Core i7-920XM, 1.73GHz Core i7-820QM and 1.60GHz Core i7-720QM. These are the fastest laptop chips Intel has ever manufactured with prices ranging from $364 to more than $1,000.

You won¡¯t find ultra-thin 13-inch laptops with these Core-i7 chips because they are simply too big and hot. But you¡¯ll still get some choice in terms of size and weight. The laptops already announced range in display size from 15-inches¨Cwhere there are several models¨Call the way to Toshiba¡¯s Qosmio X505, which weighs more than 10 pounds and has an 18.4-inch display.

Here are some of the options from smallest to largest display:

Part of MSI¡¯s G series gaming laptops, the MSI GT640 has a 15.4-inch (1680¡Á1050) display and Core i7 processors, and the company claims it is the ¡°best performing notebook computer for gaming.¡± MSI hasn¡¯t announced pricing,Dell Inspiron 1100 Battery, but we know the GT640 will offer up to 4GB of memory, Nvidia GeForce GTS 250M graphics with 1GB and Blu-ray. With its black and red aluminum case, the GT640 weighs in at nearly 6 pounds.

Of the four Clarksfield laptops Dell is selling, three have 15.6-inch displays: the Alienware M15x, Studio 15 and Studio XPS 16 (they differ in terms of resolution and brightness). Not to be outdone by MSI, Dell bills the Alienware M15x as the ¡°most powerful 15-inch gaming laptop in the universe,¡± while the Studio and Studio XPS are geared more toward entertainment. The starting configurations for all three laptops include the Core i7-720QM and a 250GB hard drive. The Alienware M15x has a new design¨Ccarried over from the larger Alienware M17x¨Cand starts at $1,499 with 3GB of memory and Nvidia GeForce GT 240M graphics with 512MB. The Studio 15 starts at $999 with 4GB of memory and ATI Mobility Radeon HD 4570 graphics with 512MB. And the Studio XPS 16 starts at $1,249 with the 4GB of memory and ATI Mobility Radeon HD 4670 graphics with 1GB. All three also offer the Core i7-820QM, but only the Alienware M15x can be configured with the top-of-the-line Core i7-920XM, for a whopping $950.

The HP Envy 15¨Cpart of a new premium laptop line that borrows its name from the moribund Voodoo Envy 133¨Cis also a Core i7 system based on a 15.6-inch display.Dell Inspiron 5100 Battery, The Envy 15 is one of the more portable Core i7 laptops measuring one inch thick and weighing 5.2 pounds, and it has a sleek etched magnesium case and a large glass touchpad. But it also starts at $1,799. The exact specs are unclear (HP is taking pre-orders, but it doesn¡¯t ship until October 18),Dell Inspiron 1100 Battery, Dell Inspiron 5100 Battery, Dell 6T473 Battery Dell Inspiron 630m Battery, but novel options such as up to 16GB of memory and dual solid-state disks would push the price even higher.

The Asus G51J and G60J have nearly identical specs. Both offer either the Core i7-720QM or Core i7-820QM, up to 4GB of memory, Nvidia GeForce 260M graphics with 1GB, one or two hard drives, and either a DVD burner or Blu-ray player. The difference is the display¨Cthe G51J has a 15.6-inch display (1920¡Á1200) and the G60J has a 16-inch (1366¡Á768) display. The Asus M60J is identical to the G60J, except that it has GeForce GTX 240M graphics with 1GB. All three notebooks have the same dimensions and weigh 7.3 pounds. Asus has not yet announced the pricing.

Moving up the ladder, there are two 17-inch models, the Dell Studio 17 and MSI¡¯s GT740. The Studio 17¡¯s display measures 17.3 inches and has a resolution of 1440¡Á900. It starts at $1,099 with the Core i7-720QM, 4GB of memory, ATI Mobility Radeon HD 4650 graphics with 1GB, a 250GB hard drive and a big 9-cell battery. MSI announced the GT740 yesterday, and it hasn¡¯t disclosed the pricing or exact specs (since it is part of the gaming line, it¡¯s safe to assume it will be relatively high-priced). But we know it will have a 17-inch display, up to 4GB of memory, Nvidia GeForce GTS 250M graphics with 1GB, a 250GB or larger hard drive and either a DVD drive or Blu-ray.Dell 6T473 Battery One nice surprise is that it is relatively lightweight (for a full desktop replacement) at 7.1 pounds. By comparison the Dell Studio 17 has a starting weight of 7.9 pounds with a 6-cell battery.

That¡¯s nothing compared with the Qosmio X505, which has a travel weight of nearly 12 pounds including the power brick. Then again, if you want a laptop with an 18.4-inch display with a full HD resolution (1920¡Á1080), you¡¯re probably not a frequent flier. The design is identical to the older Qosmio X305, but Toshiba has toned down the color scheme¨Cthis model is mostly glossy black with some red accents. The Qosmio is the one Clarksfield system that has actually gotten a couple of hands-on reviews. PC Magazine posted a review within days of Intel¡¯s announcement, but it is based on a pre-production model with the Core i7-820QM and dual 400GB 5,400rpm hard drives. This week Laptop Magazine published a review based on a final configuration with the Core i7-720QM, 6GB of memory, a 320GB 7,200rpm hard drive and 64GB SSD, and a Blu-ray player.

Both reviews found the overall performance was significantly better than what was arguably the fastest desktop replacement available, the Alienware M17x (PC Magazine wrote that the Qosmio X505 ¡°made a mockery of the Core 2 Extreme processor in the Alienware M17x¡±). The caveat is that the Qosmio X505 has the Nvidia GeForce GTS 250M with 1GB, a very good but not top-of-the-line card, and Toshiba does not currently plan to offer higher-end GPUs. As a result, gaming laptops such as Alienware M17x, which can be configured with two GeForce GTX 280Ms, Dell Inspiron 1100 Battery, Dell Inspiron 5100 Battery, Dell 6T473 Battery Dell Inspiron 630m Battery,will still outperform the Qosmio X505 on 3D games, but these highly-specialized configurations cost thousands of dollars more. The Qosmio X505, as tested by Laptop Magazine, will cost $1,899.

These days, with netbooks and even some budget laptops under $400, that still qualifies as a very high-priced laptop. Dell Inspiron 630m Battery, Considering this is easily Intel¡¯s most powerful laptop chip, though, the starting prices on this first crop of notebooks of $900 to just under $2,000 seem reasonable. Intel is hoping that there are enough users out there that still care enough about performance to spend more. If not, there¡¯s always the 32nm Arrandale just around the corner.

Different types of battery internal resistance. The same type of battery, Toshiba Laptop Battery because of internal chemical characteristics of the inconsistencies are not the same resistance. The battery internal resistance is small, we generally use the unit mOhms define it. Resistance is a measure of battery performance is an important technical indicators. Under normal circumstances, the battery internal resistance of a small high-current discharge capability, great battery discharge resistance weak.

In the discharge circuit schematic terms, we can consider the battery and the internal resistance apart, divided into a power series with no resistance on a very small resistance resistor. At this point if the external load light, then the distribution of the small resistor in the voltage on small, whereas if the external heavy load, then the distribution of the small resistor in the voltage can be relatively large, Toshiba PA2487U Battery, Toshiba PA3107U-1BRS Battery, Toshiba PA3383U-1BRS Battery, there will be a part of power is consumed in this resistance on the (possibly converted to heat, or reverse some of the complex electrochemical reaction). A rechargeable battery factory when the resistance is relatively small, but after long-term use, due to the depletion of electrolyte inside the battery, and battery to reduce the internal activity of chemical substances, the resistance will gradually increase, until the resistance of large battery electricity can not be within the normal release, this time the battery can be "end" of the. Most of the aging batteries because of the reasons for excessive resistance caused by non-use value, had to scrap. Therefore, we should focus on is the capacity of the battery release, rather than charging to capacity.

First, resistance is not a fixed value of

The trouble is that the battery in different power states, it is not the same as the inner resistance; battery life in a different state, it is the inner resistance is also different. From a technical perspective, we generally put the battery resistance is divided into two states to consider:Toshiba PA2487U Battery, charge-state resistance and discharge resistance state.
1. Charge-state resistance refers to fully recharge the battery when the battery internal resistance measured by.
2. Discharge the battery fully discharge state of resistance that after (the cut-off voltage of discharge to the standard time) measured by the battery internal resistance.
Under normal circumstances the resistance is unstable discharge state, the measurement results much higher than normal, while the charge-state resistance is relatively stable, measuring the comparative value of practical significance. Therefore, measurement of the battery, we have to charge-state resistance as a measurement of standards.

Second, resistance can not be a general approach to accurate measurement of

Maybe you would say that there is to teach high school physics class with a simple formula for computing the battery internal resistance + resistance box approach ... ... but the physics textbook to teach the projection algorithm with the resistance box accuracy is too low, only for the theory of teaching, practical application could not use. The battery internal resistance is small, we generally use micro-or milli-Europe Europe unit to define it. In general the measurement occasions, we ask that the battery internal resistance measurement uncertainty must be controlled within plus or minus 5%. Toshiba PA2487U Battery, Toshiba PA3107U-1BRS Battery, Toshiba PA3383U-1BRS Battery, With such a small resistance, and so must be precise requirements for special equipment to be measured.

Third, the current industry applications, the battery internal resistance measurement method

Industry applications, the accurate measurement of battery internal resistance is carried out via a dedicated device. Now I say the industry is the application of the battery internal resistance measurement method. The application of the current industry measurement of battery internal resistance are mainly the following two:

1. DC-discharge resistance measurement method

According to the physical formula R = U / I,Toshiba PA3107U-1BRS Battery, test equipment so that the battery in a short time (usually 2 ~ 3 seconds) through a large force constant DC current (current general use of 40A ~ 80A high current), measure the battery at this time The voltage at both ends, in accordance with the formula to calculate the current the battery internal resistance.
Such a high accuracy of measurement and control properly, then measurement uncertainty can be controlled within 0.1%.

But this method has obvious shortcomings:

(1) only the measurement of large-capacity battery or batteries, small-capacity battery can not be 2 ~ 3 seconds to load 40A ~ 80A high current;

(2) When the battery through the large current when the battery inside the electrode polarization will occur, resulting in polarization resistance. Therefore, measurement of time must be very short, otherwise the measured resistance within a large error;

(3) high current through the electrodes inside the battery on the battery have a certain damage.

2. AC impedance measurement of pressure drop

Because the battery in fact is equivalent to an active resistance, so we put the battery a fixed frequency and a fixed current (the current general use 1kHz frequency, 50mA low current), then its voltage is sampled, after rectification, filtering and a series of processing adopted after the op-amp circuit to calculate the internal resistance of the battery. AC impedance measurement of battery voltage drop measurement time very short,Toshiba PA2487U Battery, Toshiba PA3107U-1BRS Battery, Toshiba PA3383U-1BRS Battery, generally around 100 milliseconds.

The accuracy of this measurement method is also good measurement uncertainty is generally between 1% ~ 2%.

The advantages and disadvantages of this method:

(1) The use of AC impedance measurement method can measure pressure drop almost all of the batteries, including small-capacity battery.Toshiba PA3383U-1BRS Battery, Laptop battery internal resistance of batteries is generally measured using this approach.

(2) AC voltage drop measurement accuracy of measurement is likely to be ripple currents, along with the possibility of harmonic current disturbance. This measuring instrument circuit is a test for anti-jamming capability

(3) The method has been applied measurements on the battery itself will not have much damage.

(4) AC voltage drop measurement accuracy better than the DC-discharge resistance measurement method.

3. Test instrument errors and test the components of the battery cable problems

No matter which method mentioned above, there is some very easily blind us to the question, that is, component test equipment itself, error and the test cable for connecting the battery problem. Because the battery internal resistance to be measured is small, the line of resistance should be taken into account. A short connection from the instrument to the battery cable itself, there are resistance (roughly the same micro-European level), as well as battery and connect the line contact surface contact resistance exists, these factors must all do a good job in the instrument error of the internal pre-regulator .

Therefore, the regular battery internal resistance testers are generally equipped with a dedicated connection cable and battery fixed shelves.

4, sum up

In fact, many of the aging batteries or a lot of internal power, but released no electrical resistance is too large, the real pity.laptop battery However, once the battery internal resistance increases, in order to artificially reduce the resistance of this is hard on the inside

The battery internal resistance is the battery at work,laptop battery the current flows through the battery received by the internal resistance, are generally divided into AC resistance and DC resistance, due to a small rechargeable battery internal resistance, the measured DC resistance when the electrode capacity due to a very technology, resulting in polarization resistance, we are unable to detect their true values, while the measured AC resistance can avoid the impact of polarization resistance obtained in the real resistance. AC resistance test methods are: the use of the battery is equivalent to an active resistance characteristics of the battery a 1000HZ, 50m A constant current, its voltage is rectified filter and a series of sample handling, and thus accurately measure the resistance.

15, what is the standard anti-overcharge test?
IEC provides a standard lithium battery overcharge resistance test as follows: 1). To discharge the battery 0.2C to 3.0 V 2). With the current I arbitrarily set the 10V voltage on the battery charge, charge time is T = 2.5 * C5 / I 3). Battery explosion and fire is not the final

¡¡16, what is the short-circuit experiment?
Will be fully charged battery in the explosion-proof box with a wire directly connected to positive and negative, the battery should not be an explosion or fire.

17, what is the drop test?
After the battery is fully charged from three different directions on the 1m height fall on hard rubber plate in each direction, to do two times, battery pack electrical properties should be normal, packaging without damage.

18, what is vibrating experiment?
Battery vibration test methods are: the battery to discharge 0.2C to 3.0V after the 1C charging, constant current constant voltage charging to 4.2V, cut-off current of 10mA, set aside 24 hours after the vibration according to the following conditions: amplitude of 0.8mm, so that the battery 10HZ - 55HZ between the vibration, Toshiba Laptop Battery the vibration 1HZ per minute rate of increase or decrease, the battery voltage should be + / _0.02V between the resistance change in less than 5m.

¡¡¡¡19, what is the impact experiment?
The battery is fully charged, will be a 15.8mm diameter rigid rod was placed horizontally on the battery,Toshiba PA3384U-1BRS Battery, Toshiba PA3285U-1BRS Battery, Toshiba PA3191U-1BRS Battery, with a 20-pound weight dropped from a height of 610mm, the hit the stick hard, the battery should not burst into flames, or leakage.

¡¡20, what is the penetration experiment?
After the battery is fully charged, with a diameter of 2.5mm-5mm of the nail through the center of the battery, and to nail to stay in the battery, the battery should not explode into flames.

21, the battery used which note
1) Carefully read the battery specification, use the recommended batteries; 2) Check the electrical and the cleanliness of the battery contacts, if necessary, wipe clean with a damp cloth after drying load the correct polarity; 3) non-adult custody, do not children replace the batteries, small batteries such as AAA should be placed on children can not get places. 4) Do not the old and new batteries or mix different types of batteries 5) Do not try to use heat, charge or other means to make a battery regeneration 6) Do not short-circuit the battery 7) Do not heat the battery or the battery thrown into the water 8) Do not demolish the battery 9) after use with the electrical disconnect switch should be 10) should be a long-term non-use of electricity from the apparatus by removing the battery 11) Battery should be kept in a cool, dry and no direct sunlight at

22, the battery have any effect on the environment?
Today almost all the batteries are not mercury, but is still heavy metals mercury batteries, rechargeable nickel-cadmium batteries, Toshiba PA3384U-1BRS Battery, lead-acid batteries of the necessary components. If disposed of improperly, and a fairly large number, these heavy metals have a harmful effect on the environment. At present, the international specialized agencies have been recycling nickel-cadmium and manganese oxide lead-acid batteries. Polymer batteries without liquid, zero-emissions, no heavy metals, won its green, environmentally-friendly laudatory. The ideal society of the future environmental protection energy products.

23, the ambient temperature on battery performance impact?
Of all the environmental factors, the temperature on the battery charge and discharge performance of the most influential, in the electrode / electrolyte interface, electrochemical reactions and environmental temperature. If the temperature decreases, the electrode response rate also dropped, assuming that the battery voltage is kept constant, the discharge current is reduced, the battery's power output will fall. If the temperature rise on the contrary, that the battery output power will increase, the temperature also affects the transmission rate of electrolyte, the temperature rise is accelerating, transmission temperature drop, send slow down, the battery charge and discharge performance will be affected. However, the temperature is too high, exceeding 45 ¡ã C, will destroy the chemical balance within the battery, resulting in side effects.

¡¡¡¡24, what is the over charging, the impact on the battery performance?
Overcharge refers to the battery is fully charged by the charging process after a certain, Toshiba PA3384U-1BRS Battery, Toshiba PA3285U-1BRS Battery, Toshiba PA3191U-1BRS Battery, and then continue to act as recharge. At the same time, its electrical properties will be significantly reduced.

¡¡25, the battery discharge time shorter battery What are the possible reasons?
1) battery is not full of electricity, such as the charging time is not enough, charge less efficient, etc. 2) The discharge current is too large, Toshiba PA3285U-1BRS Battery, resulting in discharge efficiency thereby reducing discharge time 3) Battery discharge the ambient temperature is too low, discharge efficiency decrease of 4) Series too much difference between the individual battery

26, short battery life may be reasons for that?
1) The charger or charging circuit and battery type does not match 2), overcharge, over-discharge 3) battery type is inconsistent with the electrical requirements

27, what is the short circuit, the impact on battery performance?
Outer conductor at both ends of the battery is connected directly to the formation of short-circuit will be. Pool of different types, short-circuit may bring different severity of consequences. Such as: electrolyte temperature rise of internal pressure, the battery will likely leakage. This situation has severely damaged the battery.

28, what is memory effect? Way to eliminate the memory effect?
Memory effect is the case for the nickel-cadmium batteries, because of the traditional sintering process is extremely negative, cadmium and coarse grains, if the nickel-cadmium battery is fully discharged before they are re-charging, easy to gather Manifold Ershi grain cadmium battery discharge to form secondary discharge plateau. Discharge the battery will be stored in this platform and in the next cycle will end as a discharge, although the capacity of the battery itself, can make the battery discharge to a lower platform. In the subsequent discharge process in the battery will only remember the low volume. Similarly, every time you use, any one not fully discharge all will deepen this effect, so that the battery capacity becomes lower. To eliminate this effect, there are two ways, first using small current depth of discharge (such as put by 0.1C to 0V) First, using a large-current charge-discharge (for example, Toshiba PA3384U-1BRS Battery, Toshiba PA3285U-1BRS Battery, Toshiba PA3191U-1BRS Battery, 1C) several times. Polymer lithium battery no memory effect, can be done with the use with the filling.

29, the future development trend of the battery like?
In the next few years, the rechargeable battery will occupy a larger market share, while the primary battery market share will be getting smaller and smaller, portable cameras, mobile and cordless phones, notebook computers and multimedia equipment, etc. will require more and more popular The rechargeable battery. Toshiba PA3191U-1BRS Battery, The rechargeable battery being environmentally friendly, thin, small energy, higher density, such as direction. The polymer lithium battery which is adapted to the requirements to obtain a high-speed growth.

30, what is the fuel cell?
Fuel cell is a chemical energy directly into electrical energy of the electrochemical system. Generally divided into the following four types: proton exchange membrane fuel cell, renewable hydrogen fuel cells, solid oxide fuel cells, molten carbonate fuel cells.

1What is a battery and secondary battery?
An ordinary dry battery is only used once,laptop battery Also known as secondary batteries may be rechargeable batteries. Secondary batteries in the power-type battery (or traction batteries) is the electric vehicle is currently the main power supply.

2, A battery and secondary battery What's the difference? ?

The electrochemical nature of the decision within the battery of the type of battery is rechargeable, according to their electrochemical composition and structure of electrodes we can see the real rechargeable battery between the internal structure of the reaction is reversible. In theory, this reversibility is not affected by the impact of cycles, since the charge and discharge in the electrode size and structure caused by reversible changes, then the internal rechargeable battery must be designed to support this change, since, once the battery is only done a discharge,Toshiba Tecra 9000 Battery, Toshiba Tecra 9100 Battery, it is much simpler and does not require the internal structure to support this change, therefore, can not be brought once the battery charge, this approach is also very very dangerous economic, if you need to re-use, should choose the real number of cycles in the350Times about rechargeable batteries, such batteries may also be referred to as secondary batteries or battery.
Another obvious difference is their energy and load capacity, and self-discharge rate, rechargeable battery power than a battery of high, but their load capacity is relatively small.
3, Rechargeable battery is how to achieve its energy conversion?
Each battery has a capacity of electrochemical conversion, will convert stored chemical energy directly into electrical energy, on the secondary battery (also called battery) case (also known as another term so that portable rechargeable batteries), in the discharge process is to convert chemical energy into electrical energy; and in the process of charging, this will re-converted into electrical energy to chemical energy. Such a process according to electrochemical systems,Toshiba Laptop Battery generally charge and discharge500Or more times.
4Electric bicycle battery What are the characteristics?
Electric bicycle battery is a power-type battery, it can be characterized by large current discharge within a certain period of time for motor vehicle operation, and can maintain a certain period of time to run a certain distance.

Car battery power and the fixed battery, such as the instrument batteries, electricity, communication systems batteries, starter batteries, the performance is different from the structure to its charge and discharge in different ways,Toshiba Tecra 9000 Battery, Toshiba Tecra 9100 Battery, it is not universal.

5Electric bicycle battery is how to classify it?

From the big perspective, once the battery cell sub -(Electric vehicle power supply has become history to do it), Secondary batteries and fuel cells. Car batteries according to the nature of acidic and alkaline electrolyte, according to shape into a square and cylindrical, are divided into per-use mobile and fixed by use of divided power type, starter type and ordinary type, according to structural sub - for the open type and enclosed structure. Of which: there are different forms of lead-acid batteries, such as from the structure is divided into a high profile with the type and dwarf type; according to the state is divided into rich acidic electrolyte fluid type, fluid type and colloid electrolyte depleted of three, according to the plate structure is divided into plate, roll and tubular.

At present conventional battery-electric vehicles are mainly lead-acid batteries, nickel-metal hydride batteries, Toshiba Tecra 9100 Battery, nickel-zinc batteries, lead-acid batteries Among them, the most popular and the remaining two kinds of Naishi is still small. The main reason is the market action did not begin, there is no formation of LO products for electric vehicles the size of output, prices do not had not yet been accepted by the majority of users, but will soon enter the boom. Technical success of the other three cell--Lithium-ion batteries, zinc-air battery is the second nickel-metal hydride, nickel-zinc batteries after the upgrade products; fuel cell prices are still sky high, mainly due to the high cost of proton exchange membrane preparation, catalytic metals are precious things, certain techniques still need to improve the not a large scale into the areas of production, still6 ~ 8Years to spread.

56Lead-acid battery discharge rate and the use of care?
The same power motors, rated voltage is different, absolutely different from the speed of consumption.Toshiba Tecra 9000 Battery, Toshiba Tecra 9100 Battery, For example: same180WElectric motor, rated voltage24VWhen current is7.5A; And rated voltage36V, The current is only5AThey use the same battery capacity, combined for the36VTo5ACurrent discharge, electro-chemical reaction is slow, while the combination of24VTo7.5ACurrent discharge, electro-chemical reaction will be relatively intense, it is better to5ADischarge calmly.

Batteries0.5CThe following current discharge is the economy. What0.5C?C: That is the battery capacity,C2Express the view that2Hours release rate of discharge of the battery when the determination of the actual capacity obtained. This means that the calibration for theC2Capacity, should be released half an hour capacity (0.5C2) Is consistent with the capacity requirements, if more than0.5C2, It is necessary to discount the capacity of the. But also for the battery life adversely.

Now, in order to2Hours the rate of discharge capacity of marked12AhThe battery should be marked asC2= 12AhSo0.5C2= 0.5¡Á12 = 6A. So12AhOf batteries0.5CDischarge,Toshiba Tecra 9000 Battery, is the current6A.10AhBattery0.5A.

The battery to work long hours, the output of the operating current of not more than the battery rated capacityCxIndeed/ X,XThe battery is rated when the next rate, which is the principle of choice.XIs2, They should be2Hour discharge rate;XValue3, Then the use of time should be3Hours to consider.

-Lithium-ion battery with a light weight, high capacity, long life characteristics. It is the best choice for mobile phone battery, master the right to use, it can be more full play to its advantages and life.
----1. The first three charging should be carried out thoroughly after use
-----To alleviate transportation custody in the process of self-discharge phenomenon,Toshiba Laptop Battery recently manufactured lithium-ion battery, only to charge about 50% of capacity, apart immediately after use; etc. in a completely exhausted after the fully charged before use; second time also completely exhausted after a full charge, so that after the required three consecutive cycles, the battery is easy to achieve the best for use.
----2. Be sure to use Li-ion battery charger
----Lithium-ion battery must be selected to give a dedicated lithium-ion battery charger, otherwise it will fail to charge effects, so that the capacity reduction. Dedicated lithium-ion battery charger can charge lithium-ion battery to implement slow and fast charge. Lithium-ion battery charger if you are using a non-exclusive may damage the battery. In addition, the battery charging, not to items such as chargers and TV together.
----3. Note that the preservation of battery charge
----After charging, the charger should avoid placing more than 12 hours or more. Lithium batteries in general there is a certain natural discharge rate, such as the total does not use a day, about 1% of the electricity will still be released. In extreme temperatures, battery performance will be reduced. Do not store the battery at a temperature higher than 60 ¡æ or lower than -20 ¡æ environment. In addition, the long-term or long-term in the state of charge at all be let photoelectric state, are all adversely affect battery life. The best state of preservation is half full power-up state.
----4. Lithium batteries for everyday use note
----Lithium-ion battery without memory effect, each time without charging a mandatory pre-discharge, as long as the battery capacity can be exhausted at any time charge, both to save battery power without the wasted life of a cycle.
----Lithium-ion batteries due to its chemical properties of extremely active in response to intense, therefore, for daily use should pay attention to:
----Note 1. Anti-immersion liquids such as rain, snow and sweat. Once into the water to immediately shut down maintenance, or may cause fire.
----Note 2. Away from the special high-temperature environments. When the lithium battery to reach 80 ¡æ in itself may cause an explosion.
----Note 3. Shell cracks lithium batteries can not be used.
----Note 4. Not to demolish them. If rain, moisture, dry cloth can be dry,laptop battery put in dry and ventilated place on their own or with hot air drying of about 40 degrees.
The battery voltage, current and capacity
. The battery is equivalent to "install electricity" kettle
----With the kettle to describe the battery, especially the secondary battery, easy to understand the characteristics of the battery is generally calculate the kettle pot is cc volume, while the battery is used to count mAh battery capacity: based on current (mA-mA ) and time (h-h) of the product to be calculated. Simply put, if a nickel-metal hydride battery label capacity of 2000mAh, if the current 1000mA hour electrical charge into the battery, it can be about 2 hours the battery is fully charged, if the current will be 200mA per hour into the electric charge batteries, which can be filled with about 10 hours electricity. Although in theory the calculation is so, but all batteries Jie Wei chemical material composition, chemical reaction rate of a certain range, it will affect is the length of charging time. In addition, the secondary battery's capacity, although marked as 2000mAh, but after charge and discharge, its capacity will be successively reduced, so we often hear "this battery can charge and discharge more than 500 times," the significance of their representatives is not the first 501 times the battery can not be used, the correct statement should read: the battery by fully charging and fully release the number of End power was back for more than 500 times, and its first 501 measurements when the battery capacity, as well as marked capacity of 80% or 60 %, which is consistent with secondary battery quality standards.
2. The battery voltage
----In the secondary battery on the label can be seen how much of this battery voltage, which we call the nominal voltage or rated voltage, such as: Ni-MH battery labeled 1.2V, the battery labeled 3.6V or 3.7V, this standard-voltage due to the battery anode and cathode materials consisting of voltage difference, not a fixed value, see the following table: Battery Type Ni-MH battery Lithium-ion battery
Fully discharge cut-off voltage of 1.C0V 2.C7V or 3.C0V
Voltage 1.C2V 3.C6V or 3.C7V
Full charge saturation voltage 1.C35 ~ 1.C4V 4.C1 ~ 4.C2V
*Fully discharge cut-off voltage of: This refers to the cut-off voltage of the battery discharge, Toshiba Tecra 8100 Battery, if the voltage is below this cut-off will continue to discharge, then the voltage will continue to fall can cause damage to the battery.
----*Completely saturated electric charge: Secondary battery, its voltage will gradually increase its natural charge cut-off points need to eat from the charger to accurately detect and stop charging when the battery charge saturation power, the voltage will fall within the framework of the above-mentioned. In addition, the secondary battery has a feature that is finished when the discharge power, though the voltage to reach cut-off voltage, but when the battery away from the load, the voltage will rise to near rated voltage, usually the lower rated voltage.

Basic knowledge of lithium batteries
ortable electronic products to the battery as a power supply. With the rapid development of portable products, all kinds of greatly increased battery usage, and has developed many new battery. In addition we are familiar with high-performance alkaline batteries, rechargeable nickel-cadmium batteries, nickel-metal hydride batteries, there is in recent years, the development of lithium batteries. This article introduces the basic knowledge related to lithium batteries. This includes its characteristics, the main parameters, models of meaning, application and use for attention.
----Lithium is a metallic element, its chemical symbol Li (its English name lithium), is a silvery white, very soft, lively and chemical properties of metal, the metal is the lightest. In addition to its application outside the atomic energy industry, can produce special alloys, special glass (TV screen glass used), and lithium batteries. In lithium batteries use it as a battery anode.
----Lithium batteries are also divided into two categories: non-rechargeable and rechargeable types. Non-rechargeable battery known as the disposable batteries, it can only be a one-time chemical energy into electrical energy, electrical energy can not be restored back to chemical energy (or restore the performance of poor). The rechargeable battery is called secondary batteries (also known as batteries). It would be chemical energy into electrical energy stored in the use of time, and then convert chemical energy into electrical energy, Toshiba Tecra 8000 Battery, which is reversible, such as chemical energy lithium batteries power the main features of
----Smart portable electronics products require small size, light weight, but the battery size and weight compared with other electronic components are often the largest and most heavy. For example, I remember when the "Big Brother" is very "thick, heavy," while today's cell phone is so light. One improvement is the battery played a significant role: in the past is a nickel-cadmium batteries, lithium-ion batteries are now.
----The biggest characteristic of lithium batteries is higher than the energy. What is the specific energy then? Refers to the specific energy per unit weight or unit volume of energy. With the specific energy Wh / kg or Wh / L to represent. Wh is a unit of energy, W is watts, h is the hours; kg is 1000 grams (weight units), L is liters (volume units). To give an example to illustrate: 5, nickel-cadmium batteries rated at 1.2V, a capacity of 800mAh, then its energy 0.96Wh (1.2V ¡Á 0.8Ah). 5, the same size Lithium - Manganese Dioxide battery rated at 3V, its capacity is 1200mAh, then its energy 3.6Wh. Both the battery size is the same, then the lithium - manganese dioxide battery than the nickel-cadmium battery energy is 3.75 times!