This is an equivelant to a Milwaukee 48-59-1201 M12 Li-Ion Battery Charger and Power Source. It is NOT OEM. I bought a few of these to test. The one I've tested works just like the Milwaukee brand. It will charge an M12 battery via a micro USB cable. It has a USB port for charging other devices. It also has the power port for the Milwaukee heated coats and jackets. It does not include a power adapter, battery or any cables. Price is firm. I will not reply to offers. Please call or text 785-623-7021.