With the GoPro Dual Battery Charger, you can conveniently charge your spare battery as you use your HERO4 camera. The only GoPro charger that allows you to charge two batteries simultaneously, the GoPro Dual Battery Charger is easy to use. The LED indicator lights the display with the charging status so you know when your batteries are ready for action. How It Works Easily charges two HERO4 camera batteries simultaneously. Powered with standard UBS power adaptors, the GoPro Auto, the GoPro Wall Charger, or a computer. Design Details Compatibility: All HERO4 cameras. Dual LED lights display charging status of both batteries. 1160mAh lithium-ion rechargeable battery. Whatâs Included Dual Battery Charger (for HERO4). Rechargeable Battery (for HERO4). USB Cable.