M12-18C Li-ion Battery Charger for Milwaukee 12 V 14.4V 18V C1418C 48-11-1815/1828/1840 M18 M14 M12 Lithium Battery - Walmart.com
Milwaukee M12 12-Volt Lithium-Ion Cordless Bluetooth/AM/FM Jobsite Radio with Charger with Two M12 6.0 Ah Battery Packs & Charger 48-59-2462-2951-20 - The Home Depot
R&D #32: Teardown of the Milwaukee M12 battery charger. - YouTube