DEWALT 20V MAX Lithium-Ion Battery Adapter for 18V Tools DCA1820 - The Home Depot
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
2Pack 4600mAh 18 Volt for Dewalt 18V XRP Battery DC9096-2 DC9098-2 DC9099 DW9096 | eBay