The rechargeable lithium-ion battery provides up to 2.5 hours of additional power (depending upon usage and temperature) for your GoPro HD HERO or HERO2 Camera.
To recharge place the battery in the GoPro HD Camera or the GoPro Battery BacPac and connect it your computer with the USB cable included or to a wall outlet or cigarette lighter adapter using an optional USB AC/Car Charger for extra convenience.
Battery will be charged to 80% capacity after 1 hour and full charged in 2 hours with optional power adapters, or 80% capacity after 2 hours and full charged in 4 hours with a computer's USB port.
-  Rechargeable Lithium-Ion Battery
- Weight: 0.9oz / 26g
- Dimensions: 1.75" x 1.4" x 0.3" / 44mm x 36mm x 8mm
- Capacity: 3.7V 1100mAh
Great Battery ! Review by Francis
+5 stars ! :) (Posted on 12-09-01)
Quality Issues Review by Steve
Bought the camera and every accessory available, but the battery failed during a trip. Bought another battery and it also failed during a trip. I can't depend on it during my far north adventures so it sits on a shelf now and I use another helmet camera. (Posted on 11-11-14)