GoPro HERO4 and GoPro AHDBT-401 Battery (2-Pack) by Wasabi Power
SANDMARC Procharge - Triple Charger for GoPro Hero 4, 3+ and Remote
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
3D Printed GoPro Hero 4 Battery Case by s.kennedy | Pinshape