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Registered Member #152
Joined: Sun Feb 12 2006, 03:36PM
Location: Czech Rep.
Posts: 3384
the title says it all... is it OK to charge NiMH batteries in a charger that was designed for charging NiCd batteries? It is an old charger that takes about 16-20 hours to charge AA NiCd batteries.
Registered Member #103
Joined: Thu Feb 09 2006, 08:16PM
Location: Derby, UK
Posts: 845
Yes it will be fine, it's what I do also to avoid having to buy a new charger.
To calculate the charging time, take the capacity of the nimh cell (in mAh) times by 1.5 and divide that by the rated current output (mA) of the charger... or just leave them in for a couple of days because the current will be relatively low there's no risk of damage by overcharging.
If your charger has a built in timer, it's another story...
Registered Member #191
Joined: Fri Feb 17 2006, 02:01AM
Location: Esbjerg Denmark
Posts: 720
it doesn't really matter, but usually NiMH cells have a far greater energy density than old NiCd cells. like 2 or 3 times. if it takes 20 hours to charge the NiCd...
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charge NiMH batteries in a NiCd charger
