> Thanks for the replies folks, it would appear that my "minimum
> circuitry" solution won't do what I think I will need, that is a quick
> 'top off' between games (15-30 minutes or so) from an unknown charge
> state. As you can imagine, the battery going dead mid game is an
> absolute no-no.

Cell temperature rise is a legitimate end point method. In your case it
would be easy to implement and you may not mind trading off some cell
lifetime for simplicity.

I have a commercial charger which I use for my AA camera batteries. I think
it uses 3 separate end point methods BUT when the charge light goes out the
cells have always become very warm - probably about 50C.


        Russell McMahon

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