[volt-nuts] fluke 731b battery pack

[Poul-Henning Kamp]

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In message <CABqdsz8mKPZ02mJsL=h5D5idBzom5crZkqzbTJguPomOY5aUHA at mail.gmail.com>, Eric Garner writes:

I would go with NiMH, since the NiCd production volume of small
cells is now so low now that quality suffers.

You need to pay serious attention to the charging circuit, no
matter which chemistry you pick.

The trickle charge current is probably too high for modern NiCd and
guaranteed too high for NiMH.

If there is a bulk charge state, you should check the parameters
(current/timer) of that too.

Finally, try to measure the final config (ie: on the right shelf,
in the pile of kit) temperature of the battery pack, before
deciding/adjusting charging parameters, both NiCd and NiMH change
properties rapidly above approx 40C/100F.

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