Vivitar Battery Rejuvenator / Charger with 8 Bonus Batteries VIVITAR Household Battery Charger FOR Ni-MH and Alkaline AAA & AA Batteries Fits both AA and AAA batteries - The Vivitar Alkaline/NiMH Charger is compatible with both alkaline and nickel-metal hydride batteries. This charger maximizes the efficiency of your alkaline batteries, allowing you to recharge them up to 80 times. Save money and trips to the store by always having fresh batteries around your home. For use with many cameras, mp3 players, portable radios, and other electronic devices. It will charge alkalines up to 80 times and it works on 100-240 voltage so it can be used worldwide. It also has four LED status indicator lights which let you know when your batteries are ready to go.