[ltp] battery drain while asleep?

[Roman Haefeli]

On Thu, 2008-11-13 at 22:01 +0100, Yves-Alexis Perez wrote:
> Hi,
> 
> I just made an experience on my T61 (8897-CTO). I put the laptop to
> sleep this morning and then resumed it this evening. I took the battery
> status before and after, and here is the result:
> 
> corsac@hidalgo: date -R
> Thu, 13 Nov 2008 08:19:06 +0100
> corsac@hidalgo: acpitool -B
>   Battery #1     : present
>     Remaining capacity : 52430 mWh, 99.77%
>     Design capacity    : 56160 mWh
>     Last full capacity : 52550 mWh, 93.57% of design capacity
>     Capacity loss      : 6.428%
>     Present rate       : 0 mW
>     Charging state     : charged
>     Battery type       : rechargeable, LION
>     Model number       : COMPATIBLE
>     Serial number      :    38
> 
> [asleep for a day]
> corsac@hidalgo: date -R
> Thu, 13 Nov 2008 21:35:46 +0100
> corsac@hidalgo: acpitool -B
>   Battery #1     : present
>     Remaining capacity : 42890 mWh, 81.62%, 02:28:25
>     Design capacity    : 56160 mWh
>     Last full capacity : 52550 mWh, 93.57% of design capacity
>     Capacity loss      : 6.428%
>     Present rate       : 17339 mW
>     Charging state     : discharging
>     Battery type       : rechargeable, LION
>     Model number       : COMPATIBLE
>     Serial number      :    38
> 
> So 52430 → 42890, that means 10W just while asleep.

nope, the unit here is Wh, not W. during the sleep, 10Wh were used. the
average over assumingly 10h would be 1W, then.

>  I find that way to
> much, but I'm not sure how this could be fixed.

don't know, if 1W is way too much. but let's ask the experts.

roman



		
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