BM Premium VW-VBT380 Battery for Panasonic HC-V380, HCV510, HC-V520, HC-V550, HC-V710, HC-V720, HC-V750, HC-V770, HC-VX870, HC-VX981, HC-W580, HC-W850, HC-WXF991 Camcorder VW-VBT380 Li-ion Battery for Panasonic HC-V10, HC-V100, HC-V110, HC-V130, HC-V160, HC-V180, HC-V201, HC-V210, HC-V250, HC-V380, HC-V500, HC-V510, HC-V520, HC-V550, HC-V700, HC-V710, HC-V720, HC-V750, HC-V770, HC-VX870, HC-VX981, HC-W580, HC-W850, HC-WXF99 Camcorders Battery Specifications - Energy Storage Capacity: 3880mAh /Voltage: 3.6 volts /WH: 13.9Wh, Chemistry: Li-ion - New fully decoded chip works just like the original. (gives time left and does not need a special charger) Memory free for maximum performance - Absolutely no memory effect so that you can charge battery at any time - Super Long Time Recording Battery has a one-year warranty - 100% Safety Guarantee: Built with multiple circuit protection (over-charging, short-circuit, high-temperature, and surge protection), and high-quality, fire-resistant construction PLEASE NOTE: THIS BATTERY WILL NOT WORK WITH Panasonic HC-V800K, HC-VX1K, HC-WXF1K