The Battery Bac Pac works as both a charger for your spare HD HERO batteries & plugs into the back of the 1080p HD HERO camera to nearly double record times. Perfect for long duration time-lapse photo sessions, endurance motor sports racing or any application where you need up to 2X the battery life. Features Attaches to the back of the 1080p HD HERO camera, allowing for up to 2X* extended record times Plugs into any USB (Universal Serial Bus) charging source to charge your spare HD HERO batteries. Charges 960p & 1080p HD HERO camera batteries Built in LED lights indicate battery power status
Includes:: 1 Battery Bac Pac, 1 Li-Ion Battery, 1 Waterproof Door for HD HERO Housing, 1 Skeleton Door for HD HERO Housing, 1 USB (Universal Serial Bus) Cable May require firmware upgrade. The Battery Bac Pac is NOT compatible with the HD HERO 960