XO power management

Ismael Schinca ischinca at plan.ceibal.edu.uy
Thu Mar 24 09:45:16 EDT 2011

We would really like to have a relatively accurate result *as fast as
possible *of the condition of a battery. That's what I'm trying to get to.
I could run the olpc-pwr-log on 15 batteries aprox. Used batteries but in a
"probably good" condition.
I'm also trying to get some really bad but functioning batteries to test
them. Don't have them yet.
I'll try to run the script on those 15 batteries today and share the results
here. I could attach the csv files for example. My idea is to deplete the
batteries and run the script from that point on. Let me know if you would
prefer another procedure.


2011/3/24 Richard A. Smith <richard at laptop.org>

> On 03/24/2011 09:15 AM, Richard A. Smith wrote:
> > Whats the serial number of your battery? You may also want to run a
> > olpc-pwr-log run with that battery so you can determine what the actual
> > capacity of the battery is.
> Even better you are in a position to help me figure out how best to deal
> with this.    Adding a full blown calibration procedure is perhaps
> possible but its tricky to do automatically.  A possible 1st step could
> be the addition of a manual value that let you adjust the maximum mAh.
> Then you could run a manual calibration procedure and update the value.
> You say you have many of these batteries?  Would you be able to run
> olpc-pwr-log on each one of them?
> --
> Richard A. Smith  <richard at laptop.org>
> One Laptop per Child
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Ismael Schinca
Centro Ceibal - Depto. T├ęcnico - I+D
Avda. Italia 6201 - Edificio Los Ceibos
Montevideo - Uruguay.
Tel.: 2601 57 73 Int. 2232
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