[ltp] [ltp]Questtion about battery

[Henrique de Moraes Holschuh]

On Wed, 28 May 2008, Laurent Gilson wrote:
>> Sorry to be a skeptic, but is there any evidence that this
>> actually increases battery life?
>
> Read this:
> http://en.wikipedia.org/wiki/Lithium_ion#Storage_temperature_and_charge

And this:
http://www.batteryuniversity.com/

>> I would have thought that if this was so
>> then battery/laptop manufacturers would have included this
>> as part of the standard operating system?
>
> You want a 100% full battery to work with, not 70%. So this is just
> for storing them, not for daily use.

Speak for yourself.  I happen to find 80% of my current battery to be
enough most of the time.

And if you are going to store Li-ION batteries, store at 40% and in a
cool place (5 to 15°C, never freeze).  Mine are on the refrigerator, the
9-cell has degraded just 2% since it was bought.  The same-age 6-cell I
use all the time is already degraded by 35%, and it has just been
through 60 cycles.

-- 
  "One disk to rule them all, One disk to find them. One disk to bring
  them all and in the darkness grind them. In the Land of Redmond
  where the shadows lie." -- The Silicon Valley Tarot
  Henrique Holschuh