DCA1820 20V battery adapter for Dewalt 20V lithium battery / for Dewalt 18V Nicad & Nimh Akku Tools – Dasbatteries
DEWALT 18-Volt 2-Pack 2.4 Amp-Hour; 2.4 Amp-Hour Nickel Cadmium (Nicd) Power Tool Battery Kit in the Power Tool Batteries & Chargers department at Lowes.com