Amazon.com: AMICROSS Battery Adapter Replacement for Dewalt 18V to 20V Converter DCA1820, Convert Your Old 18V XRP Tools to Run on The Latest Dewalt 20 Volt and Milwaukee M18 Lithium Batteries 2-Pack :
NEW 18V 2000mAh / 2.0AH Li-ion Battery *** Require Li-ion Compatible C – BattNation
ExpertPower Replacement Battery for DeWalt DC9182, DC9181, DC9180, 18V XRP Lithium Ion fits All Dewalt 18 Volt Tools - - Amazon.com
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
DEWALT 18V XRP Ni-Cd Rechargeable Battery with Security Strap for DEWALT 18V Power Tools DC9096S - The Home Depot