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 DUAL BATTERY CHARGER FOR HERO 4 | Rockbrook Camera
GoPro HERO4 Black 4K HD 12MP Action Camera 32GB SD Frame + Waterproof Housing | eBay