Amazon.com : Wasabi Power Battery (2-Pack) and Charger for GoPro HD HERO2, GoPro Original HD HERO (2010 model) and GoPro AHDBT-001, AHDBT-002 : Camcorder Batteries : Electronics
GoPro HERO4 and GoPro AHDBT-401 Battery (2-Pack) by Wasabi Power
Amazon.com : MaximalPower replacement Battery for GoPro AHDBT-001, AHDBT-002, GoPro Hero HD HERO and HERO2 Pro Camera 2 Pack : Digital Camera Batteries : Electronics
GoPro Rechargeable Li-Ion Battery for HERO8/7/6/5 Black
JUICEBANK: GoPro Battery+Mount – YOLOtek
GoPro HD Hero2 Battery Replacement - iFixit Repair Guide