Nikon NiMH Rechargeable Batteries for CoolPix L1/S4/2100/2200/3100/3200/4100/4600/5600/7600 (2-Pack) Two rechargeable AA-sized batteries Nickel metal hydride chemistry free from memory effect Environmentally safe Trusted Nikon quality For use with Coolpix 3200, 3100, 2200, and 2100 or other cameras using AA batteries