[ltp] battery full capacity dropped significantly

Tino Keitel linux-thinkpad@linux-thinkpad.org
Thu, 21 Feb 2008 13:26:17 +0100


On Thu, Feb 21, 2008 at 13:21:21 +0200, Andriy Khavryuchenko wrote:
> Hi,
> 
> Tonight I've forgot to plug my T42 (with 9-cell battery) to the power
> and left it open.  Of course, battery discharged completely :(
> 
> This morning I've found that 'last full capacity' as reported by acpi
> dropped from about ~70W down to ~57W:
> 
> akhavr@t40 /tmp $ cat /sys/devices/platform/smapi/BAT0/last_full_capacity
> 57200
> 
> Is this an electronic issue and that could be reset somehow or that's
> the cells where drained so much that their maximum capacity suffered?

Was the 57200 reported after it finished recharging the completely
empty battery?

Regards,
Tino