Kastar Battery for Sony M Type NP-FM50 Equivalent Camcorder Digital / Camera and Sony NP-FM30 NP-FM51 NP-QM50 NP-QM51 NP-FM55H Battery Battery Type: Lithium-ion rechargeable battery Battery Volts: 7.4V, Capacity: 2300mAh Replacement for Sony NP-FM50 NP-FM55 NP-FM30 battery Compatible with the original battery and charger Package Includes : 1 Battery