Found New Replacement Gopro Batteries! Gopro Hero 3 Battery test! - YouTube
Amazon.com : Kastar GOPRO3 Battery (3-Pack) and Charger Kit for GoPro HD HERO3, HERO3+, AHDBT-302 Work with GoPro AHDBT-201, AHDBT-301, AHDBT-302 : Electronics
3 in 1 Battery Charger Station for GoPro Hero-9 hero10 go pro, 2 Pack Batteries Compatible with GoPro Hero 9 /10 Black AHDBT-901 - Walmart.com