Never run out of battery power when you're just about to capture the perfect moment. High capacity, rechargeable Li-Ion battery with premium cell. Ideal as an emergency back-up or just to extend the use of device between charges. Best replacement for the original NP-FM50 / NP-FM30 / NP-FM55H battery pack. Type: Generic / Aftermarket. Cell type: Lithium Ion. Voltage: 7.4V. Accessory ONLY, camera not included.