2300mAh Gopro Battery Bacpac Extended Battery with LED Display for GoPro HERO3 Seamlessly attaches to the back of your GoPro to extend battery life; Replaces the GoPro Battery BacPac (ABPAK-304) Get 3 hours of battery life Includes extended standard housing backdoor 4 LED lamp charging display, the remaining power tips Battery use for gopro 3 3+, but housing backdoor only use for gopro 3