hahnel PowerKit for GoPro HERO4

Featuring a dual battery charger, the hahnel PowerKit for GoPro HERO4 lets you simultaneously charge two GoPro HERO4 HL-GP401 type batteries. It is powered from USB sources via micro- or mini-USB inputs, and will charge fully depleted batteries in approximately three hours. LED indicator lights display the charging status, so you know when your batteries are ready for action. The charger includes a mini-USB cable, a spare 1160mAh battery, and a transparent battery case.