you cn connect a 3.7v lipi battery to the port you showed… remember to check the polarity… i have to build a adapter pigtail for my batteries the usb will charge the battery if you have the switch in the right position for it
you cn connect a 3.7v lipi battery to the port you showed… remember to check the polarity… i have to build a adapter pigtail for my batteries the usb will charge the battery if you have the switch in the right position for it