Milwaukee M12 and M18 12-Volt/18-Volt Lithium-Ion Multi-Voltage 6-Port Sequential Rapid Battery Charger (3 M12 and 3 M18 Ports) 48-59-1807 - The Home Depot
Milwaukee M18 18-Volt Lithium-Ion Dual Bay Rapid Battery Charger with 6.0Ah Battery Pack (2-Pack) 48-59-1802-48-11-1862 - The Home Depot
Amazon.com: Battery Adapter for Milwaukee 18v Battery USB Charger & 12v DC Port & Work Light - Power Source Supply for Milwaukee Lithium-ion Battery (Tool ONLY) : Tools & Home Improvement