Re: NimH batteries

> I take 16 or 20 of these new batteries and put them through several
> controlled charge/discharge cycles. Then I connect all in series and
> give them a nice long trickle charge. I then disconnect them and let
> them "relax" for a day, and measure terminal voltages. Using these
> measurements, I sort them into the most-closely-matched groups of 2, 4,
> 8, or whatever I need. I then mark the batteries so that I won't
> accidentally mix them up.

Because your devices almost certainly use the batteries in series, not
parallel, matching the voltage does you little good. If you're going to
match something, match the capacities, to prevent one cell from being
overdischarged.

steve


.

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