Hahnel PowerKit for Go Pro Hero4

The H?hnel PowerKit for Hero4 has everything you need to make sure your GoPro Hero4 camera is ready for action when you are. This PowerKit includes a Duo charger that can fully charge either a single battery or two batteries simultaneously in 3 hours. It also includes a H?hnel HL-GP401 Li-Ion battery which will work in all Hero4 cameras. The charger is powered by the included Mini USB cable.SpecificationsFully compatible with Go Pro Hero4* Black & Silver Cameras & BatteriesIncludes HL-GP401 for Go Pro AHDBT-401Charges two HL-GP401 / AHDBT-401 batteries simultaneouslyPowered from practically any USB device via the Mini USB / Micro USB inputFully charge 1 x battery in 3 hours Fully charge 2 x batteries simultaneously in 3 hours