... , DCR-TRV620, DCR-TRV620E, DCR-TRV620K, DCR-TRV7, DCR-TRV720, DCR-TRV720E, DCR-TRV735K, DCR-TRV820, DCR-TRV820E, DCR-TRV820K, DCR-TRV9, DCR-TRV900, DCR-TRV900E, DCR-TRV935K, DCR-TV900, DCR-TV900E, DCR-VX2000, DCR-VX2000E, DCR-VX2001, DCR-VX2100, DCR-VX2100E, DCR ... over 300 cyclesBuilt-rechargeable battery protection circuits saftyWarranty:1 year New digital camcorder battery for sony NP-F550