The GoPro HD Camera Battery BacPac works as both a charger for your spare HD HERO batteries and plugs into the back of the 1080p HD HERO camera to nearly double record times. The Go Pro Back Pack is perfect for long duration time-lapse photo sessions, motorsports racing or any reason you may need up to 2X* the battery life.

Battery BacPac Features
• Attaches to the back of the 1080p HD HERO camera
•Plugs into any USB charging source to charge your spare HD HERO batteries.
•Built in LED lights indicate battery power status

Included:
•1 Battery BackPac
•1 Lithium Ion Battery
•1 Waterproof Door for HD HERO Housing
•1 Skeleton Door for HD HERO Housing
•1 USB Cable
•Warranty: One Year