The ANSMANN action cam Charger is compatible for up to two batteries for the GoPro® Hero 4 camera. The small and handy charger charges two battery packs at the same time quickly and gently. The integrated LED indicators show the charging status for the individual charging slots. While the battery pack is charging, the LED lights red. As soon as the battery pack is fully charged, the LED lights green. Our ANSMANN charger offers the best safety from the beginning: short-circuit protection, overheating protection and protection against overcharging. The charger detects the inserted battery packs automatically, adjusts the charge voltage for each slot and controls the charging temperature of the battery packs.  This all guarantees your safety and offers a longlife for your battery packs. Package contents include one charger and a USB cable. Your battery packs can be charged anywhere via USB charger, USB car charger or USB powering devices (PC, laptop, powerbank).