The Nikon MH-20 is the quick charger for the MN-20 NiCd battery pack which is used with the MB-23 Multi-Power High Speed Battery Pack. The MH-20 can charge up to two MN-20 units sequentially, and operate automatically with voltage from 100V to 240V (with a matching local plug).
The recharging time with one battery attached is approximately 90 minutes, with two batteries about three hours.
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Comments about Nikon MH-20 Nicad Battery Charger:
I bought this to use with my old F4s and MB23 battery base. It's quick and efficient, handles two batteries via two leads and low cost today. The only downside is that it cycles the two batteries in series not in parallel so you have to wait twice the typical charging time to have two packs to take out to the field. I would get this again.
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