USB Power Source Addon for Milwaukee 2645-22 Battery - Phone and USB Devices Charger Accessory for Milwaukee 18V Lithium-Ion Power Tool USB Power Source Addon for Milwaukee 2645-22 Battery Battery NOT Included. This is only for the USB Power Source. The USB Power source attaches to your lithium-ion battery and will enable you to charge your phone and other USB devices. USB Power Source Specifications - Input Voltage: 14-22 VDC; Output: 5V/2A USB Power Source includes 1 USB Ouput to charge your phone and other USB devices. On Sale for a Limited Time!