Milwaukee 48-59-2818 18-Volt to 28-Volt Lithium-Ion and NiCad Slide Style 1-Hour Battery Charger Versatile and reliable 18-to-28-volt universal battery charger Charges both Li-Ion and Ni-Cad batteries from 18- to 28-volts Top-off conditioning mode automatically conditions 18-volt Ni-Cad battery cells to extend run-time and life Automatic temperature monitoring delivers the correct charge current for that temperature Pass-through plug conserves outlet real estate