[ltp] Laptop battery storage

[Macskasi Csaba]

On Thu, 30 Mar 2006 19:33:10 +0200, Felix E. Klee <felix.klee@inka.de>  
wrote:

> At Thu, 30 Mar 2006 19:57:17 +0200 (MEST),
> Gilson Laurent wrote:
>> > If you're not running your laptop on battery power, it's a good idea
>> > to remove the battery and store it. That prolongs its life. It's
>> > recommende that they be stored at about 50% charge (Why? I don't
>> > know.)>
>>
>> The recommandation of storing at 50-75% charge is dune to the internal
>> chemlicals. At that charge the most "stable" situation is maintained.
>
> Could you give us a bit more detail.  Why is it bad to store a Li-ION
> battery fully charged?

Would you store a car-tyre at 4 bar? No? Well... it is pretty much the  
same. The only difference is, that there is not physical, but a "chemical  
pressure" in a battery...
Actually scientists say that lithium batteries should be stored at 40%  
charge.

Another source of destruction is heat. But that is not a problem at  
(newer) thinkpads. The hd of my old gericom notebook got up to 52C. The  
battery was right behind it.... :-/





-- 
Macskasi Csaba
bitumen@tuxworld.homelinux.org
http://tuxworld.homelinux.org:81/