power consumption after shutdown

Frederick Grose fgrose at gmail.com
Mon Feb 16 14:22:57 EST 2009


In a discussion thread like this, it would good to have a source code link
for all to reference, now and in the future.
Thanks for all the contributions!

On Mon, Feb 16, 2009 at 3:36 AM, James Cameron <quozl at laptop.org> wrote:

> 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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