1680mAh AHDBT-401 Battery for Gopro Hero 4 Battery AHDBT401 AHDBT 401 + LED 3-Port USB Charger For GoPro Hero4 HERO4 Camera - AliExpress
Amazon.com: Batmax 3Packs AHDBT-401 1680mAh Battery + LED 3Slots USB Charger for Gopro Hero 4 Battery Go Pro Hero4 AHBBP-401 Action Camera Accessories : Electronics