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Protection Associated with Laptop Battery is really a Voltage Regulator Signal Elements Are usually Prevent.

In Windows XP methods, SpeedStep software program will be troubles, this time to modify the BIOS parameters, or to count on a amount of manufacturer-certain regulatory techniques, this sort of as the IBM notebook laptop computer or computer is actually potent useful resource.

Lithium has been switched on or discharge, permit it discharge better. Very best not to use bodily methods (like the string of resistors). This is not to say no, only comparatively large danger, if the internal protection circuit not operating, then the FUJITSU FPCBP155 Notebook Battery on the void, and the worst is most probably the battery explosion, of system, this is unlikely. Circuit Battery for T40 concealed hazard is not very hard, some huge companies have discovered that the format of the feasible chance factors than the battery remember, as when mobile cellphone battery explosions do not listen to about the.

As we all know that battery will little by little drop its capacity to previous a long time as the brand name-new one. For case in point, if the new laptop battery can perform as extended as five hrs, and it could only very last for three hrs a 12 months later. Needless to say, several popular battery for laptop manufacturers such as dell battery, dell laptop computer battery or hp battery will last for a lengthier time. If you identify some methods to make advancements to your laptop battery pack, it could keep the cost for a longer time. Even though it are unable to hold the electricity as long as the new battery, it operates greater than people which do not stick to these tips.

In the starting, you must put the battery into the laptop. This phase makes it possible for you to charge the battery via the laptop. Plug in the notebook and completely cost the battery. Typically, the indicator of the battery for notebook will change off if it is entirely billed. After it is entirely billed, you can restart the notebook laptop or computer right after that. Suggestions: In common, the protection of notebook laptop or computer battery is a voltage regulator circuit factors are usually block, manage chips, insurance policy protection, and temperature probes. Temperature safety product is normally a single-off, the within has a fuse (fuse some 130'), employed to keep an eye on the voltage regulator block operate. If the process of irregular discharge, correct away there is a latest via the temperature safety unit, the fuse blows, the circuit inside of of the laptop battery at this time for the off state, and unrecoverable. If you want to repair only the alternative of the temperature protection, but this variety of temperature protector is tough to track down in the marketplace.

How to Use Laptop Battery

Memory Effect

First of all it's necessary to unfold a myth that persists in many peoples head. The laptop battery memory effect.

In lithium-based batteries this is in fact a myth, it only applies to older Nickle-based batteries. So fully discharging and charging the TOSHIBA PA3444U-1BRS battery is completely useless and even harmful as we will see below.

The modern lithium TOSHIBA PABAS071 battery can be charged regardless of its current percentage, given that it has absolutely no negative effect in its performance.

Should I remove the battery when A/C is plugged in?

Many laptop users have this question and we will answer it right now: The answer is: YES and NO, it depends on the situation.

Having a ACER battery AS07B31 fully charged and the laptop plugged in is not harmful, because as soon as the charge level reaches 100% the battery stops receiving charging energy and this energy is bypassed directly to the power supply system of the laptop.

However there's a disadvantage in keeping the laptoop battery in its socket when the laptop is plugged in, but only if it's currently suffering from excessive heating caused by the laptop hardware.

So:

- In a normal usage, if the laptop doesn't get too hot (CPU and Hard Disk around 40ºC to 50ºC) the battery should remain in the laptop socket;

- In an intensive usage which leads to a large amount of heat produced (i.e. Games, temperatures above 60ºC) the battery should be removed from the socket in order to prevent unwanted heating.

The heat, among the fact that it has 100% of charge, is the great enemy of the lithium battery and not the plug, as many might think so.


Battery discharges

Full battery discharges (until laptop power shutdown, 0%) should be avoided, because this stresses the notebook battery a lot and can even damage it. It's recommended to perform partial discharges to capacity levels of 20~30% and frequent charges, instead of performing a full discharging followed by a full charging.

Laptop batteries contain a capacity gauge that allows us to know the exact amount of energy stored. However, due to the charging/discharging cycles, this sensor tends to be inaccurate overtime.

Some laptops include in their BIOS, tools to recalibrate this BATBL50L6 battery gauge, which is nothing more than a full discharge followed by a full charge.

So to calibrate the gauge, it should be performed, in every 30 discharge cycles, a full discharge non-stop , followed by a also, non-stop, full charge.

An inaccurate gauge can lead to the fact that the the battery capacity values are are wrong. The battery may report that it still has 10% of capacity when in fact it has a much lower value, and this causes the computer to shutdown unexpectedly.

Discharge (or charge) cycles consist of using all that laptop battery charge (100%) but not necessarily all at once.

For example, you can use the laptop for some minutes in a day, using half its capacity e then fully charge it. If you did the same thing in the next day, it would be counted a discharge cycle and not two, so it may take several days until a full discharge cycle is completed.


How to perform a calibration (full discharge)?

The most adequate method to do a full discharge (100% to a minimum of 3%) consists of the following procedure:

1.Fully charge the battery to its maximum capacity (100%);
2.Let the battery "rest" fully charged for 2 hours or more in order to cool down from the charging process. You may use the computer normally within this period;
3.Unplug the power cord and set the computer to hibernate automatically at the minimum
4.percentage possible as described by the image sequence below (click images to enlarge); 5.Leave the computer discharging, non-stop, until it hibernates itself. You may use the computer normally within this period;
6.When the computer shuts down completely, let it stay in the hibernation state for 5 hours or even more;
7.Plug the computer to the A/C power to perform a full charge non-stop until its maximum capacity (100%). You may use the computer normally within this period.
After the calibration process, the reported wear level is usually higher than before. This is natural, since it now reports the true current capacity that the battery has to hold charge. Lithium Ion laptop batteries have a limit amount of discharge cycles (generally 200 to 300 cycles) and they will retain less capacity over time.

Many people tend to think "If calibrating gives higher wear level, then it's a bad thing". This is wrong, because like said, the calibration is meant to have your KS526AA battery report the true capacity it can hold, and it's meant to avoid surprises like, for example, being in the middle of a presentation and suddenly the computer shuts down at 30% of charge.

Prolonged storage

To store a battery for long periods of time, its charge capacity should be around 40% and it should be stored in a place as fresh and dry as possible. A fridge can be used (0ºC - 10ºC), but only if the battery stays isolated from any humidity. One must say again that the battery's worst enemy is the heat, so leaving the laptop in the car in a hot summer day is half way to kill the battery.

Purchasing a replacement battery

If you intend to purchase another laptop battery, it's recommended that you do it only when the current battery is very degraded. If it's not the case, the non usage of a battery leads to its degradation.

If a spare battery is purchased and won't be used for a long time, the above storage method should be used.

Besides that, when purchasing a HP 484170-001 you must pay attention to the manufacturing date.

Advantages in using BatteryCare

BatteryCare allows you to have the control over the discharge cycles number, and when this reaches 30 (or other configured value), it notifies you that it's time to perform a full discharge in order to keep the battery gauge calibrated. Like this, it's guaranteed to always have the correct capacity values reported by the battery.

Besides, when using the battery, there's the possibility to suspend some Operating System features that help degrading the autonomy (only in Windows Vista or higher):

- Windows Aero, the theme that allows for visual effects like window transparency, requires graphics card acceleration, which obviously will help decreasing the battery lifetime;

- SuperFetch, ReadyBoost and SearchIndexer are three Windows Vista (and higher) services that, even in battery mode, are using the hard disk a lot and increase total power consumption, thus decreasing laptop battery lifetime. Suspending these services has absolutely no negative impact on the performance or security of the system.

These features are resumed once the laptop is plugged in to A/C power.

Improving You Laptop Battery Life

Those who have actually utilized the laptop computer understands which tragedy sensation you receive within the hole of the belly whenever you is the laptop battery in order to pass away. Lattery life continues to be among the solitary most significant subjects that individuals tend to be purchasing a brand new laptop. As well as why don't you? Laptop battery life may be the important element for that range of motion of the laptop. Certain, all of us prefer to slim as well as gentle computer systems, but additionally the actual thinnest as well as lightest laptop is actually simply the document pounds once the Toshiba battery passes away. In some instances you may want to change capable of a long Toshiba PA3457U-1BRS battery for the laptop computer, however rush the maker, help to make slimmer as well as lighter in weight laptop computers, several “ultra-books” possess laptop batteries which are not really eliminated or even totally without having getting rid of the actual laptop computer could be changed, incorporated. What exactly are you able to perform in order to press away a couple of minutes (or perhaps a couple of additional several hours) COMPAQ HSTNN-LB42 battery life? Along with just a couple min's really worth associated with easy modifications it is simple to reveal your projects carried out without having continuously searching for the actual closest electric electric outlet. The majority of this particular manual may concentrate on the most recent laptop computers along with Home windows 7, however high of the next guidance is applicable even though you possess Or windows 7, or even are preparing to proceed to Home windows eighth You don't overexert your own laptop Within it's easiest type, demands small energy out of your laptop computer will. Consequently, your own laptop computer each time is actually squandered power performing some thing that you don't “need” to complete this. An easy answer would be to operate programs that not really make use of, rather than departing applications within the history or even near reduced within the Home windows taskbar. Nevertheless, you are able to proceed 1 action additional. Every laptop COMPUTER having a contemporary edition associated with Home windows is able to alter energy information while using Home windows energy administration. Click which PA3480U-1BRS battery image about the base from the display, as well as make certain your own laptop along with “balanced” or even “Power Saver” is placed if you prefer a fast and simple method wish to restrict unneeded energy usage. The actual “High Performance” environment is excellent in the event that you’re development movie or even doing offers, however it can make the actual processor chip as well as hard disk (utes) function tougher compared to they require, with increased energy as well as put much more warmth. The majority of laptop computers additionally energy manage software program in the laptop computer producer (HEWLETT PACKARD Energy Consultant, Toshiba Energy Saver, and so on. )#) are utilized which may be the factor in order to decreasing general energy usage. Because cellular Lastly Depart A person Helpless We want the laptop computers are often linked in some manner to some cellular system, Wi-Fi, 3G broadband, your own 4G HARDWARE modem, Wireless bluetooth, as well as your own exterior computer keyboard as well as computer mouse at work. The issue is which continuously drains the actual delivering as well as getting cellular indicators, a sizable a part of lapto battery Dell M911G. The answer is straightforward: If you're not really energetic after that via a cellular link, be sure you transform it away. You are able to disable Wi-Fi or even Wireless bluetooth for your laptop computer possibly through hitting the actual cellular system image within the reduce correct part of the Home windows desktop computer or even through pushing the actual cellular on and off turn on laptop computers which are such as changes. The vibrant concept: Turn the actual show The only real element which uses probably the most quantity of energy in your laptop may be the backlight. This is also true with regard to “desktop replacement” notebook computers along with big displays (15-inch as well as seventeen in . laptop computers). Indeed, exhibits generally appear much better when the backlight is actually good as well as vibrant, however whenever you’re from the walls electric outlet, you have to keep the desire to have an exciting display having a need to stability, a person operate your own laptop computer. Begin by decreasing the actual display lighting towards the cheapest environment as well as improve this gradually before you begin to see the darkest environment to attain bearable. Obviously this really is with respect to the space you're within … You have to boost the lighting from the display when you're operating outside, have been in sunlight, however, you could possibly make use of the complete cheapest lighting environment, and also you tend to be on the degree using the log cabin lighting. Dvd disks are you going to depart your own laptop computer LIFELESS Eventually many people will discover on their own on the trip or even inside a vehicle with no Wi-Fi as well as absolutely nothing easier to perform however view the film in order to move time trapped. Take out which DVD AND BLU-RAY or even Blu-ray selection because enjoyable seems, however it is among the quickest methods to release FUJITSU FPCBP160 battery. The actual motor, the actual optical generate and also the laser beam to see the actual dvds produces an enormous energy becomes as the disk revolves. As well as the generate includes a laptop computer processor chip (as well as GPU), spending so much time in order to decode the actual sound as well as movie. This particular results in greater than a 30% improve within energy usage when compared with whenever your laptop is actually simply sit down close to as you kind the record within Ms Term. If you want to view films, attempt along with electronic content material that's down loaded before you decide to stay such as iTunes or even Amazon . com Immediate Movie, that has already been saved on your pc. You may also flow on the internet from Netflix.com or Hulu.com but, as already mentioned, Wi-Fi power consumption is something to keep in mind. Some more modifications in order to Home windows As well as the standard bloatware, the majority of brand new Computers include the next procedures operating within the history … which consume useful PROCESSOR series as well as garbage your own hard disk drive. Many times a few of these procedures might be useful, however should you attempt to press away each and every feasible moment associated with laptop battery life out of your laptop computer after that continue reading. Automated improvements: you need to keep the program current Home windows improvements, this will be achieved by yourself if you need to be worried about notebook battery life. The optimum time in order to revise Home windows is actually apparent when you're attached to an electrical electric outlet. In order to disable automated improvements inside your Manage Solar panel as well as click “Windows Update”. Within the next eye-port “Change Settings” about the remaining aspect, click on as well as help to make the right path to another display. Right now a person alter your own choice in order to “Never look for updates” as well as click on OKAY. Please be aware which this can be the body is actually susceptible if you don't by hand look for improvements regularly. Home windows Indexing: Home windows drive indexing assists within the research to become decreased once they want to look for a particular document in your hard disk drive, however the damaging impact on the battery-life trigger along the way. To show away indexing, open up “My Computer” after which click your own hard disk drive. About the very first web page which teaches you uncheck “Index this particular generate with regard to quicker searching”. You have to move through several directions, as well as “ignore all” on the click on when you're motivated. This particular could be a large amount of period, based on exactly how complete your own generate. Anti-Virus Software program: AUDIO-VIDEO software program is a good accomplishment each this halloween within the look for infections as well as upgrading computer virus meanings. However, your own AUDIO-VIDEO software program is really a existence saver based on which kind of websites your own go to or even what kinds of documents, you'll fulfill. If you're an extremely cautious as well as experienced COMPUTER person, you are able to prevent harmful web sites as well as documents and could not require AUDIO-VIDEO software program. Cautioned which getting rid of AUDIO-VIDEO software program is really a danger of the program and really should be achieved from its discernment. Should you experienced numerous computer virus difficulties previously won't think about getting rid of your own anti-virus software program. If you work with antivirus software program, after that you might like to ensure that automated improvements as well as computer virus tests shouldn't happen whenever operating upon laptop batteries upon. The next phase of the manual demands you to definitely make use of the Job Scheduler as well as disable a few providers that the pc is actually operating within the history when you are making use of your laptop computer. This is often through starting your own plan checklist, after that Add-ons, Program Resources, Job Scheduler may lastly click on known as. Within the listing of energetic duties, carry out the next elements that many undesirable actions within the history. In order to disable these products dual occur about the choices you to definitely an additional display may checklist additional information relating to this exercise is actually. Just about all you need to do now's in order to right-click them, as well as click on Disable into it through disturbing a person later on to prevent. Consolidator: This operates within the history for that plan to enhance the client. Absolutely no main energy pull, however it’s some thing that you could switch off Planned Defrag: defragment your own hard disk and can bog lower the body along the way. We cope with this inside my leisure time, as opposed to the program they're planning for a 7 days. Conclusion You are able to lengthen the quantity of operate period in your laptop computer battery through several hours in some instances, merely adhere to these types of directions so when I believe from the software program you utilize in your laptop computer. Even though not really improve Acer AS07B42 battery life, assisting several adjustments to enhance program overall performance, and several occasions can make your own aged laptop computer seem like the pace devil once again. You are able to maintain which aged laptop computer as well as conserve this in the landfill with regard to an additional 12 months. Your own laptop computer is actually a lot more like a person compared to you may think: The actual tougher a person function to get rid of, the greater power. If you discover the best stability in between relaxation (inactivity), as well as everything for you to do together with your laptop computer, a person learn how lengthy your laptop battery life will still be astonished.

Our first Ivy Bridge laptops: How do they perform?

Laptops updated with Intel's latest Ivy Bridge processors are finally here, but is there as much to be excited about compared with last year's Sandy Bridge CPUs?

Intel hasn't made such dramatic claims this time around as far as pure processor speed, but there are plenty of other improvements including eight-way hyperthreading, Turbo Boost 2.0, integrated USB 3.0, and native Thunderbolt support. The only two parts any mainstream consumer's likely to care about are the CPU gains and new Intel HD 4000 integrated graphics, which promise to greatly boost gaming performance without dedicated graphics.

Soon enough our CNET Labs will be flooded with Ivy Bridge laptops, and we'll have more real-life examples of Ivy Bridge products than you can shake a stick at. Until then, we've tested two early examples of high-end quad-core Ivy Bridge Core i7 processors that Origin and Intel have sent us.

Unlike the truly generic integrated graphics-only product last year, the Asus N56V that Intel sent to us looks more like an actual retail unit, albeit one that may not ever match an actual production model. It has a 2.6GHz Intel Core i7-3720QM processor, along with discrete Nvidia GeForce GT 630 graphics. Last year's "white box" only had integrated graphics. We were able to disable the Nvidia GPU and run Intel's HD 4000 integrated graphics exclusively, to see what the performance gains were.

The Origin EON17-S, which we formally reviewed, featured a faster 2.9GHz Core i7-3920XM processor.

The Asus N56V is a 15.6-inch laptop weighing in at 6 pounds, a middleweight system approaching the "desktop replacement" category. The slightly bronzed notebook has a 1,920x1,080-pixel-resolution display, 8GB of RAM, a 750GB, 7,200rpm hard drive, and Nvidia GeForce GT 630M graphics. The speakers above the keyboard fired off loud and crisp sound, but I wasn't as concerned with system design in this case; I focused chiefly on Ivy Bridge CPU performance.

For comparison purposes, we looked at an extremely recent and somewhat similar Asus N53, a laptop with a Sandy Bridge-generation quad-core 2.2GHz Intel Core i7-2670QM and the same Nvidia dedicated graphics. We also compared these systems with a couple of equivalent Sandy Bridge laptops with midrange Nvidia GeForce 540M graphics. After running all our benchmarks, here's what our Labs editor Julie Rivera found.

CPU performance

The performance leap between Ivy Bridge and Sandy Bridge CPUs, even by Intel's claims, is supposed to be subtle. That's reflected on our benchmark comparisons across some equivalent systems from last year.

The Ivy Bridge-based Origin EON17-S and Asus N56V handled our benchmark tests faster than any previous Windows laptops. Obviously, these quad-core systems represent the highest end of the performance spectrum: I'm more curious how middle-range dual-core processors and ultrabook-oriented lower-voltage CPUs will fare when they emerge. However, this bodes well for Ivy Bridge laptops in general.

Graphics and gaming

Intel claims that Ivy Bridge's Intel HD 4000 graphics offer up to double the performance compared with last year's Sandy Bridge integrated graphics. The results varied by game, but it did seem to hold true that the Intel HD 4000 graphics were markedly improved. Even more impressively, they held their own against Nvidia GeForce 540M graphics. Read more here on the gaming power of Ivy Bridge's integrated HD 4000 graphics.

One note, however: next-gen Nvidia and AMD discrete graphics will provide graphics potential of a much higher order, especially on top-end gaming laptops. People who want to see the future of PC gaming are still best off shopping for high-end graphics, but the average laptop buyer should be really happy about how Ivy Bridge laptops will game.

The Asus N56V also has next-gen Nvidia graphics in the form of a GeForce GT 630M GPU. The Nvidia graphics performed admirably, but both Sandy Bridge and Ivy Bridge laptops feature these GPUs. That mirrors what you'll see in stores over the next few weeks:

Battery life

Battery life shows off only a subtle gain between our two tested Asus systems: 226 minutes with the Ivy Bridge N56V versus 214 minutes with the Sandy Bridge N53. It's hard to tell what the laptop battery life and power efficiency story is here, especially on a select pair of high-end systems. We'll have to wait for dual-core and ultrabook versions of Ivy Bridge processors to compare results down the road.

What does this mean for you?
What the average person will care about is: slightly faster processors on average, perhaps a more widespread use of Turbo Boost in mainstream laptops, and, hey, the average laptop will be better at playing games. Thunderbolt is also intriguing, but until laptops start actually having Thunderbolt ports -- and affordable peripherals become the norm -- no one will really care.

More-mainstream Ivy Bridge systems will be arriving over the next few months, and these will really show what Intel's new processors can do.

Many laptop manufacturers will, in fact, be selling new products with new designs and even new Nvidia and AMD graphics, but not necessarily new Intel Ivy Bridge processors. They'll be subtly swapped out when CPUs become available, but for many shoppers, the Moment of Ivy Bridge may get lost in the shuffle and be hard to identify. (To know if your laptop has a newer Intel processor, make sure the four-digit number at the end of your CPU starts with a "3"; for example, Core i7-3720QM vs i7-2670QM.)

The takeaway I've gleaned from early time with these laptops is that the CPU gains are small, while the integrated graphics on mainstream laptops could finally be good enough for most people to use for their everyday gaming. However, these early systems show off fast quad-core CPUs that don't really mirror what the average user will buy. Apples to apples comparisons show some modest gains, but nothing like last year's dramatic Sandy Bridge leap. That being said, if you're shopping for a laptop now, you're probably better off waiting for an Ivy Bridge version of your system to appear.
read more: http://news.cnet.com/8301-17938_105-57417957-1/our-first-ivy-bridge-laptops-how-do-they-perform/


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GM: Explosion at battery research facility ‘unrelated to the Chevrolet Volt’

An explosion during "extreme battery testing" Wednesday morning of a prototype energy cell at a General Motors battery research facility in Warren, Mich., injured one person and did major structural damage to the building.

At the heart of the explosion was a lithium-ion battery, according to a fire department official cited in local news reports. The morning blast did not, however, involve batteries that power the Chevrolet Volt, the new plug-in hybrid car whose batteries caught fire weeks after a crash test, General Motors said in a statement.

But the flap over the Volt battery fire has left some insiders feeling more than a little peeved and defensive at the amount of news media attention being devoted to what they say is an almost inevitable, if not routine, event in the business of battery research and extreme testing.

"The whole reason they have these labs is precisely to do this kind of aggressive testing – anticipating the worst thing a consumer could do with this product," says one expert with direct knowledge of the circumstances surrounding the explosion, who asked not to be named. "This is going to turn out to be a mountain out of a mole hill. Yeah, we're doing a lot of testing. That's what we have to do. Sometimes things explode."

“The incident is still under investigation by GM and the Warren authorities," the GM statement said. "Any information or discussion of the nature of the work in the lab or cause of the incident is entirely speculative and cannot be confirmed at this time. The incident was unrelated to the Chevrolet Volt or any other production vehicle. The incident was related to extreme testing on a prototype battery.”

Despite criticism of the Volt by conservative pundits, a follow-up investigation by the National Highway Transportation Safety Administration concluded the new car was no more prone to fire than any other vehicle.

"The debate over batteries recently really hasn't been about safety so much as about their longevity," says Tom Turrentine, director of the plug-in hybrid and electric vehicle research center at the University of California, Davis. "I think we are mostly over the hump with battery safety. But there's no question that battery labs are notorious for explosions when they're testing."

Lithium-ion batteries are attractive to automakers because they can hold so much power – about four times the amount of energy a conventional lead-acid battery. Even so, earlier lithium-ion batteries used in other commercial applications burst into flame on occasion. Laptop computer manufacturer Dell Computer recalled millions of batteries after a handful of its laptops burst into flames several years ago.

t's a peril automakers were well aware of. Automakers now building the Volt and other first generation plug-in vehicles that run primarily or exclusively on advanced lithium ion batteries have selected less-volatile battery chemistries – and added engineering safety features as well, industry experts say.

Robert Kruse, GM's then-executive director of global vehicle engineering for hybrids, electric vehicles, and batteries, explained his thoughts on emerging plug-in hybrid vehicle battery technology in a 2009 interview with the Monitor. On safety, cell chemistry, and to avoid "thermal runaway" in which lithium ion batteries have been known to burst into flames, "many layers of safety built into the Volt," Mr. Kruse said.

"We have adopted [independent] safety standards and have employed those requirements into our cell and pack designs. I can assure you we've met those standards with what we've designed."

Vehicle makers like GM are now on the hunt for new battery chemistries that hold a lot more energy than today's lithium ion battery, but are also less volatile. But it's a hunt fraught with occasional explosions.

"The challenge of the battery designer is to come up with a high voltage battery, but one that doesn't suffer from instability," says Donald Sadoway, professor of chemistry and an authority on new battery technology at the Massachusetts Institute of Technology. "If you have a high energy battery, that means you've got a lot of energy inside that case and you can, in an unabated release, end up with thermal events or, in an extreme case – an explosion."

Ann Marie Sastry is CEO of Sakti3, a next generation company that GM has invested in to produce a cutting-edge source of power for future vehicles that would far exceed conventional lithium ion batteries.

"Intensive testing is required right now to validate the technology for use by consumers," Dr. Sastry writes in an e-mail interview. "But, there are disruptive technologies coming down the pike which will obviate some of these challenges. So the today solution is to test, and the tomorrow solution is to productize the next generation technology, and that's why we are partnered with GM – they're taking the right approach."

Though not discounting the seriousness of any battery explosion, Dr. Sadoway says it's still much more dangerous to be near a gasoline explosion of equivalent energy value. Indeed, there were 184,000 vehicle fires in 2010 involving conventional gasoline-powered vehicles that killed 285 people and cost $1 billion in property damage, according to the National Fire Protection Association.

"If I had to choose," he says, "I would rather be present when a battery that explodes – rather than a car whose gas tank explodes."

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New iPad screen is eye-opening upgrade

Beware the new iPad, not because it's an inferior product, but because it's a superior one. Using one is like living the life of a millionaire for a day, then getting dumped back in your regular life. Your eyes are now opened to how miserable your existence is.

The big culprit here is its stunner screen. It has four times the resolution of the previous models. That's a big, big jump, which makes text and high-resolution images look amazingly sharp and clear. High-definition movies look amazingly detailed.

At first, I wasn't that excited about the prospect of a high-resolution screen. For the past year and a half, I've read scores of books and more newspaper articles than I can count on the original iPad and the iPad 2. I've never felt that the screen wasn't sharp enough.

But after only a few hours with the third version, which went on sale last week and is known only as "the new iPad," it's like my eyes got really, really picky. Suddenly, I saw how clumsy and blurry text looked on the older models and how straight lines sawtoothed their way across the screen.

Color reproduction is also improved greatly over the previous models. I've never been unhappy with the way the iPad 2 displayed colors, but you can tell at a glance that the colors are more vibrant and nuanced on the new screen. On the old iPad, the Facebook icon looks blue; on the new one, you can see that it's more of a purple tone. Useful? Maybe not. But once you've used it, you won't want to go back to a less-colorful screen.

The new iPad's "Retina" screen, with its resolution of 2048 by 1536 pixels, is far better than the competition can muster, and I have no doubt it will set a new standard for portable devices. In fact, I wonder why we haven't had screens this good before. Why don't we have laptops like that? How about desktop monitors? We deserve better!

Now, the improved screen does come with a significant drawback: It draws a lot more power.

One reason is that the graphics chip now has four times as many pixels to handle. When a chip has more work to do, it draws more power.

Another reason: Smaller pixels let through less light, so even though there are more of them, the image-forming layer is darker than on a standard screen, sort of the way a denser mesh screen blocks more light. To counter this effect, Apple boosted the number of light-emitting diodes that shine through the screen from 36 to 84, according to research firm IHS iSuppli, which took a unit apart. More LEDs mean the screen's brightness ends up being the same, at the cost of higher power consumption.

Still, Apple has managed to keep Apple battery life nearly the same. The company rates it at 10 hours of use, the same as the iPad 2, and my testing indicates that the figure holds up. But it did so by making the battery a lot bigger. That means the new iPad is heavier and thicker than the iPad 2. In each case, the increase is less than 10 percent -- noticeable, but hardly a deal breaker.

The bigger battery also takes more time to charge. In my tests, I found it took about 50 percent longer to charge the new iPad than the iPad 2. It took just under seven hours for a full charge instead of four hours and 45 minutes. The new iPad needs to spend more time plugged in, and quick "top-up" charges are less effective.

The higher power consumption of the new tablet probably accounts for customers' observations that the new iPad runs hotter than the old one. It did for me, but it was never hot enough to be uncomfortable.

Another annoying thing is that for some applications, the text looks worse on the new iPad. This has to do with the mechanisms programmers chose in presenting text.

Applications that have been updated for the Retina screen look great, such as The New York Times app. But head over to a PDF-viewing program called GoodReader, which hasn't been updated, and it's another story: Letters are more blurry and smeared. One can only hope that the developers update their applications quickly.

Did I say the new iPad costs the same as the old one? I did, but that's not the whole story. An indirect price increase has snuck in.

For $499, you get an iPad with 16 gigabytes of storage memory. That's the same amount you got in the original iPad for $499. In the two intervening years, the price of memory chips used in the iPad have fallen by about 70 percent, according to IHS iSuppli. So Apple could have given us an additional 8 gigabytes of memory, if it kept spending the same amount on chips. Instead, it's cut the amount of money it puts into memory chips and shifted spending toward the screen and cameras.

That would be fine, except that the Retina screen eats memory space. Many applications that have been upgraded for the display use more memory than before, presumably because their icons and pictures need to be that much more detailed. So those 16 gigabytes won't go as far as they did. After you've loaded your apps, you'll have less space for movies and photos.

Unfortunately, the "app bloat" effect isn't limited to the new iPad. The new, bigger apps will be delivered to older iPads as well, and in some cases iPhones, even though they can't take advantage of the upgrade.

In the past, I've recommended most iPad buyers get the cheapest version, with 16 gigabytes of memory. The 32-gigabyte version might be the better buy this time around. It galls me, though, that this model costs $100 more, for an additional memory chip that costs Apple about $17.

A couple of other upgrades in the new iPad are good to have, but not as revolutionary as the screen.

The processor is faster. Again, I've never actually wished for a faster processor in my iPad, but once you have one, it's welcome. In particular, there's less of a delay when firing up programs.

The camera on the rear is improved, now matching the one on the iPhone 4, with 5 megapixels of resolution. I use the iPad cameras for videoconferencing, not for photography, so this doesn't mean much to me. The lower-resolution camera on the front is unchanged from the iPad 2.

As before, there are step-up models with cellular broadband modems available for an additional $130. In the new iPad, these modems can access AT&T's and Verizon Wireless' faster "4G LTE" networks, which in many cases are faster than wired broadband. They come with added monthly fees, of course.

Another welcome change: You can dim the screen much further than you could on the iPad 2. That's a good thing if you like to use the tablet in bed before going to sleep. Staring at a bright screen in a dark room is hard on the eyes and might make it more difficult to fall sleep afterward.

When I first learned that Apple had boosted the battery capacity of the new iPad by 70 percent, I thought it was a pity that it didn't just dispense with the screen upgrade and extend the battery life to 17 hours. But the screen has won me over.

Once again, Apple has come up with a feature we didn't know we needed, but we actually do.

The Smart Connect Technology -Dell XPS 13

The Dell XPS 13 ultrabook is the first system we've seen to showcase Intel's Smart Connect technology. But what exactly is Smart Connect? We break down the seven most important things you need to know about this new Intel technology.

What is it? Intel Smart Connect Technology is a feature of select (Intel estimates 25 to 30 percent of) ultrabooks, such as the Dell XPS 13. The chipmaker anticipates it showing up in other laptops and desktops as well—any Intel system that can be set to sleep or standby mode instead of being switched off when idle.

What does it do? Smart Connect periodically wakes the system from sleep or standby (not from hibernation) and updates applications that get their data from the Internet, fetching, for example, Microsoft Outlook or Windows Live Mail messages or Facebook status updates. When you return to and reawaken the PC, the fresh data is waiting for you—so you can not only pick up where you left off, but pick up up to the minute.

Has anything like this been available before? Not really. HP business laptops have offered QuickLook, a fast-loading alternative to booting Windows that offers a snapshot of Outlook information as of the last time the program was used, but that's for checking existing e-mails and appointments instead of receiving new ones.

How does it connect to the cloud? Smart Connect Technology checks to see if a trusted (i.e., previously accessed) Wi-Fi or wired network is available. If not—say, if you and your ultrabook are in transit between office and home—the system skips the scheduled update. When you walk through the door at home, Smart Connect recognizes your home WLAN and resumes operation.

How often does Smart Connect poll for data? The software interface lets you specify an interval from 5 to 60 minutes between updates, plus overnight hours (such as from 7 p.m. to 7 a.m.) during which the system checks less frequently (every two hours).

Doesn't it kill the laptop battery? While it draws more power than uninterrupted sleep, Intel says the impact is minimal, thanks in part to automatic overrides of the abovementioned intervals: As the battery runs down, updates occur less frequently, stopping when the battery level reaches 15 percent. Ditto if the system temperature is rising (if the laptop is in an unventilated bag or briefcase, for example,replacement Dell 05Y4YV battery).

Can Smart Connect be added to an existing laptop? Sure, especially one with an AMD processor and Atheros Wi-Fi card … no, no, it's strictly an Intel OEM offering, requiring not only a software layer but specific BIOS support and an Intel Core processor and wireless hardware.

New Type of Battery - Liquid Battery

Solar power is useless without a good way to store electricity on a large scale, in the night. A promising storage option is a new type of battery with all liquid active materials. Prototypes set close, that this liquid batteries as much as the current-day batteries cost less than one-third and could take much longer.

The battery is unlike any other. The electrodes are molten metals and between them is a molten salt electrolyte, who conducts electricity. This results in an unusually robust device, which quickly absorb large quantities of electricity can. The electrodes can on electrical currents "umpteen times higher than all [battery], that which ever observed," to operate, says Donald Sadoway, a material chemistry professor at MIT and one of the inventors of the battery. What's more, the materials are cheap, and the design allows a simple production.

The first prototype consists of a vessel surrounded by insulating material is. The researchers add melted raw materials: antimony on the bottom, an electrolyte such as sodium sulfide in the Middle, and magnesium in the lead. Because every material has a different density, they of course remain in different layers that simplifies production. The container also serves as a pantograph, the provision of electrons from a power supply, such as solar panels or carry away to deliver electricity to power to households and businesses.

As power flows into the battery ,such as ACER UM09E36 battery,ACER UM09E56 battery,ACER UM09E71 battery,ACER 916-2320 battery,ACER 4UR18650F-1-QC192 battery, magnesium and antimony metal are dissolved generated magnesium Antimonide in the electrolyte. If the cell unloads, solve the metals of the two electrodes to form magnesium Antimonide, which solves in the electrolyte, which grow the electrolyte and the electrode to shrink (see above).

Sadoway sees together large cells to a huge battery form wiring. One big enough to meet the peak of electricity demand in New York City for about 13,000 megawatts - fill would almost 60,000 square metres. Solar parks of unprecedented size, load the battery would create not only enough power to daytime electricity needs, but enough surplus energy to the batteries for the night-time operation service price. The first systems are probably save energy during low electricity demand for use in peak generated, thus the need for new power plants and lines.

Many other ways of storing energy from fluctuating sources been proposed, and some brought out limited application. These range from stacks of lead acid batteries for systems, the pump water uphill during the day and it flow back into generators at night spin can be. The liquid battery has the advantage, cheap, durable, and (as opposed to options, such as pumping water) useful in a variety of places. "Nobody was getting able, her arms around the problem of energy storage in large scale for the grid", says Sadoway. "We are literally look at a battery can save the network."

Since the creation of the first prototypes researchers have turned on the metals and salts used, it was not possible, magnesium Antimonide in the electrolyte at high concentrations resolve, so that the first prototypes were too large to be practical. (Sadoway not identify new materials, but says that according to the same principles to work.) The team hopes that a commercial version of the battery will be in five years.