electricity table (Google Docs)
Richard A. Smith
richard at laptop.org
Mon Jul 28 01:33:15 EDT 2008
Bobby Powers wrote:
>> I don't have numbers for these efficiencies. The EC code has comments
>> with magical constants that suggest certain numbers for these values but
>> I've learned that a lot of those comments may be wrong or apply to
>> earlier versions of the batteries. The range suggested is 80 - 90%.
> would (somehow) updating these magical constants for current batteries
> (depending on LiFe or NiCad chemistries) improve anything?
What I mean is that the "comments" may not be correct so if it says the
charge efficiency in CC mode is 90% I can't be sure that its really 90%
without setting up my own testing and verifying. The magic constants
may have been adjusted for a battery thats really 87% without updating
the comments to match.
Richard Smith <richard at laptop.org>
One Laptop Per Child
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