GoPro Hero 4 Battery Charger High-Performance Power Kit - Includes Dual Battery Charger + 2 Spare Batteries [PowerSuit Keep the camera rolling, 2 HIGH PERFORMANCE batteries provide instant on the go power. Highest grade Japanese power cells for longer battery life with NO MEMORY EFFECT. DOUBLE POWER - Charge two HERO 4 batteries at once; Batteries each rated at 1160mAh. Industry leading LIFETIME WARRANTY included with purchase.