Amazon.com : GoPro Battery BacPac for HERO3 Cameras (Discontinued by Manufacturer) : Electronics
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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