[ltp] Laptop battery storage

Shem Multinymous linux-thinkpad@linux-thinkpad.org
Thu, 30 Mar 2006 21:54:32 +0200


Hi,

On 3/30/06, Henrique de Moraes Holschuh <hmh@hmh.eng.br> wrote:
> > Now, when you keep the battery inside the laptop, even running on AC al=
l
> > the time, the battery charge trickles down a percent or two a week. And=
,
> > when the charge drops to 95% *, the BIOS senses this and recharges it
> > back to 100%. And, guess, what? That counts as one charge cycle. So,
>
> Such usage patterns hose the battery completely, and not because of that
> counter.  It causes crystalization inside the Li-ION cells and phisically
> *damages* the battery because you kept it at high charge constantly.

Is it the full charge of the frequent cycles that kill the battery?
Put otherwise, what's worse: setting the thresholds to (90,100) or
(40,41)?

BTW, tp_smapi forces a delta of 4% between the thresholds, just in
case (and for compatibility with the Windows software).

  Shem