GoPro Hero 4 Battery by Limefuel Replaces GoPro Wasabi Smatree AHDBT-401, Compatible with Hero 4 Black and Hero 4 Silver (2 Pack) Additional power for use with new GoPro Hero4 Camera Keep spare batteries on hand so you can keep shooting! Battery charges through GoPro Mini USB or with compatible charger Fully compatible with GoPro Hero4 Black and Hero4 Silver video cameras Hero4 battery features premium rechargeable lithium-ion cells- 3.8V, 1160mAh Includes 2 Limefuel Hero4 Replacement Batteries, Limefuel 12 month warranty