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 << Âåðíóòüñÿ â ïàïêó "Îáùàÿ"
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cathycstillman |
Extending the Life of Laptop Battery
 http://www.laptopbatterystory.com/extending-the-life-of-laptop-battery/
Îïèñàíèå çàêëàäêè:
One of my friends has a HP laptop that about 1.5-years-old and its battery is in such a pathetic state. When he pulls the plug on it the laptop, it completely dies off (shuts down). It’s as if his laptop is on a respirator (the battery) and it can’t breathe on its own. Since it was getting highly frustrating that his original battery would not hold any charge whatsoever, he resolved to get a 12-cell lithium ion battery. Now, he is more concerned about how I can use my battery more efficiently and how to get maximum life from a laptop battery.
Batteries in most modern laptops are not ‘in-line’, and that would make them essentially a fuse. There are switches (MOSFETS) that control the flow of power. When there is no battery in the unit, a small mosfet switch directs the current to the system. When there is a battery in, another switch determines if there is enough charge in the battery, if yes, it sends to system, if no- it sends to the charge circuit. Often the charge circuit is lower voltage than the actual AC adapter. example: a 19.2v power supply may only put 14v on the charge circuit. Unfortunately with modern lithium-ion batteries there is very little that can be done to prolong the life of the battery. Years ago with ni-cad and ni-mh batteries the solution was to fully charge them at first, and then fully discharge them every time.
There are however a few things that can help a bit, firstly when buying a new laptop battery try and find one that has been stored in a cold warehouse properly. The next thing is try and see if you can get hold of a battery that has only recently been made, check the batch number on the battery to see. The newer the battery the better, even if it’s been kept in a cold warehouse the battery will still have started to degrade. The Duracell batteries tend to state on them that they’ve been stored in a cold warehouse. With Li-ion batteries the minute they are made they start to degrade, there is safety contacts inside the battery that start dissolving as soon as the battery is made, once this reaches a critical level the battery is designed to refuse charge, accepting charge could be very dangerous at this point and cause the battery to explode, hence why the safety mechanism steps in and refuses charge. By storing the battery in a cold warehouse it prevents the battery from degrading as much until you receive the battery. Even though it prevents it, it doesn’t fully stop the degrading.
There is one final solution, it is entirely at your own risk, I have heard of some success stories, although some people have also said it’s not worth doing it, and others have reported that it has damaged the battery as water has formed inside. This is to store the battery when not in use in the freezer. As I can tell this is similar to the way the manufacturers store the batteries in their warehouses to prevent them degrading. However storing thousands of batteries in frozen warehouse is totally different to storing one in a home freezer. I would probably go for the fact that this method isn’t worth it. And another method is to replace the cells of the laptop batteries.
Many old laptop themselves are not very valuable, but the price of the laptop battery is always high. It annoys many people. In fact, the problem is easy to solve. We can replace the cells of the battery. And now, let’s go back to our point. What is battery cell replacing and how? Cell replacing means we take out the old cells of the battery and put in the new ones. But be attention, it is high risky and forbidden by the manufactures. It easily explodes when being replacing because the battery has voltage and may lead to short circuit with the searing iron or other tools. And on the other hand, the protection circuit may be ineffective because the information of the old cells remains in the protection circuit and the battery may not charge or may explode as a result of over-charging. So do not run the risk before your full consideration.
Òýãè (êëþ÷åâûå ñëîâà): laptop, 2011, there, BATTERY, charge, Batteries
 22.12.11 10:07 |  0 |  627 / 1 |  0
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<< Âåðíóòüñÿ â ïàïêó "Îáùàÿ"
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