Report comment Reply Bill Stewart says: March 23, 2013 at 11:19 pm Nickel-Zinc rechargeable batteries didn???t really take off in the market, but the NiZn chemistry is something like 1.6 volts, so they work really well for digital cameras and other applications that need more than 1.2v, if you can find them. (I had four of them that came with a charger, but was never able to find any sold separate