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 The jump you're seeing is due to the charge profile calibration being out of date in the battery (this might be updatable, but it won't alter your run time).
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