Amazon.com: Batmax 3 Packs 1680mAh AHDBT-401 Battery + LED Dual USB Charger with Type C Port for GoPro Hero 4 Black/Silver Action Cameras : Electronics
GoPro Rechargeable Battery Compatible for HERO4 Black/HERO4 Silver ( GoPro Official Accessory) - Walmart.com
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 Hero4 Replacement Battery
Batteries & Chargers for GoPro HERO7 Black / HERO6 / HERO5 Black / HERO (2018)