The GoPro Dual Battery Charger + Battery for HERO9 Black includes a spare HERO9 Black 1720mAh battery and features a simultaneous dual charger for two 1720mAh GoPro batteries. The charger has a USB Type-C power port and comes with a USB Type-C to Type-A cable for use with USB wall plug adapters or other USB power sources.
Power Port USB Type-C