Milwaukee 48-59-1204 M12 Four Bay Sequential Charger - Amazon.com
Amazon.com: Choerinton 4-Ports Multi Battery Pack Charger Compatible with Milwaukee M18 Tools 14.4V 18V XC Lithium Battery,Cordless Power Tools Fast Charger Station for 48-11-1862 48-11-1850 48-11-1865 48-11-1852 : Tools & Home Improvement