2Pcs 1680mAh Gopro Hero 4 Battery Replacement Li-ion Rechargeable Battery for GoPro HERO4 GoPro AHDBT-401 Action Camera – Photo Camera Store
Amazon.com : SOONSUN Side Open Skeleton Housing Case for GoPro Hero 4 Black, Hero 4 Silver, Hero 3+, Hero 3 Cameras with LCD Touch Backdoor and Skeleton BacPac Backdoor for Extended Battery
GoPro HERO 4 Black Edition 4K Action Camera Camcorder Package Hero4 (4-5) 818279012767 | eBay
GoPro Rechargeable Battery Compatible for HERO4 Black/HERO4 Silver ( GoPro Official Accessory) - Walmart.com