This is the GoPro Dual Battery Charger, compatible with HERO4 batteries and cameras only!
Conveniently charge two GoPro Li-ion batteries simultaneously with the Dual Battery Charger. Featuring USB compatibility, you can power it with most standard USB chargers, the GoPro Wall or Auto Charger or a computer. Dual LED indicator lights display the charging status of both batteries: in process (amber) and fully charged (green).
Warning: Do not use the battery if it has been damaged. Follow all warnings and instructions in the camera User Manual.