[ltp] Re: battery and capacity loss

Yves-Alexis Perez linux-thinkpad@linux-thinkpad.org
Wed, 13 Aug 2008 22:38:09 +0200


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On mer, 2008-08-13 at 22:19 +0200, Nils Faerber wrote:
> Browse the sites above and follow their instructions. If everything
> works well and you have loaded your new kernel module you should be
> able to
>         echo 85 > /sys/devices/platform/smapi/BAT0/start_charge_thresh
>         echo 98 > /sys/devices/platform/smapi/BAT0/stop_charge_thresh
>=20
> Those are my "sane" settings.
> I start chargin if the level is below 85% - that is halfway safe, as
> far
> as I know.
> And I also stop earlier - I do not really care about the last 2% of
> capacity but those are the ones the batteries get a little upset
> about.
> So I save the stress from my battery and spare the last 2% I do not
> care
> about.

Fwiw, Henrique already said he was using stuff like 30 for start and 70
for stop. (and he keeps his batteries in the fridge when he doesn't use
it).

Cheers,
--=20
Yves-Alexis

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