Re: sleep mode power usage on powerbook5,6
On Mon, 2006-04-24 at 00:11 +0200, Gabriel Paubert wrote:
> On Sun, Apr 23, 2006 at 10:33:23PM +0200, Johannes Berg wrote:
> > Hi,
> >
> > After approximately 18 hours of sleep under linux, my powerbook has lost
> > almost 25% of its battery charge.
> >
> > That seems to be too high. (Ben: Yes, with the marvell phy suspend
> > patch :) )
> >
> > Does anyone have values for OSX, or could generate some by just letting
> > the system sleep for a night and then checking how much battery it used
> > for X hours?
>
> Since battery capacity decreases with time, it is
> more intersting to know the absolute amount of
> charge lost (it's in /proc/pmu I believe).
>
> A new one is about 5400 total capacity on a 17" PB.
> After 100 to 200 cycles it might be halved, depending
> somehow on how deep you discharge it (Li-Ion batteries
> dislike deep discharges).
Also the amount of RAM makes a difference
Ben.
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