Core SWX GoPro Battery Eliminator with USB DV-GP3-USB B&H Photo
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
HSU 3-Pack Replacement Battery & LED Triple Charger for GoPro 8/7/6/5 – HSUSHOP