Re: Battery problem
On Tue, 12 Mar 2013 10:17:21 +0000
Darac Marjal <mailinglist@darac.org.uk> wrote:
> On Tue, Mar 12, 2013 at 09:24:20AM +0000, Andrea Neroni wrote:
> > Hello everyone!
> > I'm experiencing a wierd battery problem and I'd like to know if anyone
> > have seen the same.
> >
> > When I turn on Debian the battery is charged. acpi tells me there are
> > still 3 hours
> > of charge and everything is fine. The battery is relatively new and the
> > maximum capicity for
> > acpi is the 94% of the total, so fine.
> > After 2 minutes (really 2 minutes!!!) the charge goes from the previous
> > level to 8% no matter
> > what you are doing or how much charged was the battery before, and only 10
> > minutes of time are left.
>
> Have a look at the output of "cat /proc/acpi/battery/BAT0/info". In
> particular, compare the values of "design capacity" and "last full
> capacity". If "last full capacity" is significantly lower than "design
> capacity", then the battery is dying. The jump you're seeing is due to
> the charge profile calibration being out of date in the battery (this
> might be updatable, but it won't alter your run time).
Just FTR, on my system (Squeeze on a ThinkPad T61, using the tp_smapi
module), that information is under /sys/devices/platform/smapi/BAT0/*
Celejar
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