The Neewer DMW-BLK22 Battery and Charger Set includes two DMW-BLK22 type 2400mAh capacity batteries and a matching dual-channel charger. Two input ports offer a choice of Micro-USB or USB-C connections, greatly increasing versatility on the field. Built-in intelligent protection shields the batteries against overheating, electric shock, and overcharging. The 8.4V output can charge the batteries in approximately two hours depending on ambient temperature and other conditions.