This CTA Digital battery replaces the Canon BP-535 camcorder battery. It was designed to meet or exceed OEM specifications and is 100-percent compatible to the original equipment chargers. Power up with great savings from Overstock.com. Specifications: Chemistry: Lithium-ion Voltage: 7.4V mAh (capacity): 4500mAh Run time (shooting time): up to 9 hrs Memory effect: no For use with the following Canon camcorders: ZR10/ZR20/ZR25mc/ZR30mc/ZR40/ZR45mc/ZR50mc/ZR60/ZR65mc/ZR70mc/ZR80/ZR85/ZR90/Optura PI/Optura 10/20/100mc/200mc/MV30/MV30i/MV300/MV300i/MV400/MV400i/MV430/MV430i/MV450/ MV450i/MV500/MV500i/MV530i/MV550i/MV600i/MV630i/MV650i/MVX100i/MVX150i/MVX1i/MVX2i