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isw isw is offline
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Default NiMH cell charging

In article ,
"William Sommerwerck" wrote:

"Engineer" wrote in message
...

Can I charge the NiMH cells in the nicad charger? I think this
charges them more slowly as they don't get as hot as in the NiMH
charger.


Yes.


Could I even leave them in the nicad charger to stay fresh?


No. I wouldn't do this unless the charger were specifically designed for it.

NiMH cells show a voltage drop at full charge -- and require a heavy charge
to reach that point. It's unlikely a nicad charger would shut off at the
right point.

I don't think NiMH cells are bothered by a trickle charge.


Some of the data sheets I've looked at say that they don't like it. My
(limited) understanding is that if you treat a NiMH like a NiCd, it'll
work but it's life will be shortened.

Isaac