power consumption after shutdown

Benjamin M. Schwartz bmschwar at fas.harvard.edu
Fri Feb 13 23:21:41 EST 2009


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Mikus Grinbergs wrote:
> I take this to mean that *something* was draining some 
> power for the two days the XO was sitting in its "shut down" state.

All rechargeable batteries lose stored energy over time.  The phenomenon
is called "self-discharge".  It is sometimes modeled as a large (but not
infinite) resistance in parallel with the battery.

Just be glad the batteries aren't Li-Ion.  Those can self-discharge
totally in a month or less.

- --Ben
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