Ryobi P118 Lithium Ion  Dual Chemistry Battery Charger for One+ 18 Volt Batteries (Battery Not Included / Charger Only) DUAL CHEMISTRY: Can charge both Ryobi Lithium Ion and Ni-Cd batteries CHARGE INDICATORS: LED lights on the base of the tool let you know how much time is left on a batterys charge MOUNTABLE: Keyholes are located on the underside of the tool so you can keep it anywhere in the workshop ONE+ COMPATIBLE: works with Ryobi batteries from the One+ system 50 WATTS running off of 120 volts of AC power