Neewer Lithium-Ion Rechargeable Replacement Battery for SONY NP-FM500H, Compatible with Sony Alpha DSLR-A450, A200, A300, A300K, A300X, A350, A500, A550, A700, A850, A900 Compatible with: Sony Alpha DSLR-A450, A200, A300, A300K, A300X, A350, A500, A550, A700, A850, A900 Never run out of battery power when you're just about to capture the perfect moment! Time to get extra power for your digital video camera/ camcorder. This is a high capacity / rechargeable Li Ion Battery with premium cell. Best replacement for the original Sony NP-FM500H battery pack. Voltage: 7.2V. Battery Capacity: 1650 mAh.