GoPro Battery BacPac
Model: GPABPAK-304
The Battery BacPac seamlessly attaches to the back of your GoPro to increase battery life.
It's perfect for long-duration Time Lapse photo sessions, endurance motor-sports racing or any application where you need extended battery life.
You can charge it using the GoPro Auto or Wall Charger, other USB charger or a computer (sold separately).
Attaches to your GoPro to extend battery life.
Compatible with HERO3, HERO3, HD HERO 2.