Kastar Lithium-Ion Battery NP-FM50 (1-Pack) for Sony Cybershot DSC-F828 Camcorder and More Volts: 7.4V, Chemistry: Li-ion, Capacity: 2300mAh Replacement for Sony NP-FM50 NP-FM55 NP-FM30 battery Compatible with the original battery and charger Package Includes : 1 Battery