Battery Power Kit For Hero4 Battery for GoPro HERO4 and GoPro AHDBT-401 Includes Extended Replacement (1400Mah) lithium-ion battery + MicroFiber Cleaning Cloth (2 Batteries + Dual USB Charger) Get extra power for your GoPro HERO4 camera (QTY.2) Rechargeable lithium-ion battery For GoPro Hero4 with 1400mAh for longer battery life Standard USB Compatibility: Can be powered with most standard USB chargers, the GoPro Wall or Auto Charger (sold seperately) or a computer. Use Your Camera While Charging: Don't stop shooting just to charge up. Use the Dual Battery Charger to charge your spare batteries while you use your camera. This Kit Includes Some Of The Essential Accessories You Need To Take Full Advantage Of Your New GoPro HERO4 Black, GoPro HERO4 Silver Action Cam