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GoPro HERO4 (AHDBT-401) Battery by Wasabi Power
GoPro HERO4, AHDBT-401, AHBBP-401 Battery (4-Pack) by Wasabi Power
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Amazon.com : Suptig 5200mAh Waterproof Power Bank for GoPro Hero 11 Hero 10 Hero 9 Hero 8 Hero 7 Hero 6 Hero 5 Hero 4 Hero 3+ Hero 4 Session Hero 5 Session and Digital Camera and Smartphone : Electronics
Kastar 2-Pack Battery and LTD2 USB Charger Replacement for Gopro4 Hero4, AHDBT-401, AHBBP-401 Battery, Gopro HD HERO4 Black & Silver, HD Hero 4 Black & Silver Action Sport Camera - Walmart.com