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 HERO4, AHDBT-401 Battery (2-Pack) and Triple Charger by Wasabi P – Wasabi Power
Brunton All Day 2.0 Extended Battery Pack for GoPro Hero, Hero 3+, Hero 4 - ASD
Amazon.com : PowerTrust 4-Pack AHDBT-401 AHDBT401 Battery for Gopro Hero 4 AHBBP-401 Digital Battery and AHDBT 401 Dual USB Charger for GoPro Hero4 HERO4 Camera : Electronics
Amazon.com : Hero 4 Battery, Pickle Power AHDBT-401 Battery and LED Display Charger for Gopro Hero 4 HERO4 Black HERO4 Silver and Gopro AHDBT-401 : Electronics