JVC GY-HM170UA Camcorder Battery Lithium-Ion (3000 mAh) - Replacement for JVC BN-VF823 Battery Replacement battery for the JVC BN-VF823, Lithium-Ion (Li-ion) 7.4V (3000mAh) 100% compatible with your OEM battery - 3 year warranty. Made with high quality Japanese cells. Synergy Digital is a Registered Trademark