Fat Shark 7.4V 1A Headset LiPo Battery Pack for FPV Headsets This is the Fat Shark RC 1A 7V4 Headset Battery PackFeatures:Dog bone molded shape to fit securely in head strap pocket. Large 1000mAh capacityBalance lead for charging off standard RC type chargers. Includes:Fat Shark branded banana discharge lead adapter for compatibility with all chargers.