power consumption after shutdown

James Cameron quozl at laptop.org
Mon Feb 16 03:36:54 EST 2009

On Mon, Feb 16, 2009 at 12:19:41AM -0500, Richard A. Smith wrote:
> quozl at laptop.org wrote:
>> (If one discharges an XO battery outside the XO using a home lighting
>> circuit, the displayed state of charge will be inconsistent.  Persisting
>> in this practice results in increasing inconsistency.  Ceasing the
>> practice results in decreasing inconsistency over several XO moderated
>> charge and discharge cycles.  The inconsistency results in forced
>> power-down before the state of charge would suggest, manifesting as "my
>> XO stops too soon".)
> How far off is it?  The EC actually tries to detect this.  The ACR  
> register will decrease when you use the battery outside the laptop.

Last I checked, some months ago, it was no more than about 30% error.  I
didn't proceed with the test beyond about that point.

Good to know it tries to do something about it.

James Cameron    mailto:quozl at us.netrek.org     http://quozl.netrek.org/

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