Buy on Amazon : br br Wasabi Power Battery (2-Pack) and Dual Charger for GoPro HERO4 and GoPro AHDBT-401 AHBBP-401 br br Get extra power for your GoPro HERO4 camera br Charge two HERO4 batteries at once Batteries each rated at 1160mAh br Premium Japanese cells for longer battery life with no memory effect br Compatible with the HERO4 Black and HERO4 Silver models Wasabi Power charger works with GoPro batteries GoPro charger and camera can charge Wasabi Power batteries br Includes dual charger two batteries USB car adapter and USB wall adapter US with Wasabi Power 3-year manufacturer warranty