DEWALT 20-Volt 2-Pack 2 Amp-Hour; 2 Amp-Hour Lithium Power Tool Battery Adapter Kit (Charger Included) in the Power Tool Batteries & Chargers department at Lowes.com
DEWALT 20V MAX Lithium-Ion Battery Adapter for 18V Tools DCA1820 - The Home Depot
Review: DeWalt Battery Adapter for 18 Volt tools to 20V MAX Batteries — AZ DIY Guy
20V Battery Adapter DCA1820 for Dewalt 18V Tools Convert All Dewalt Lithium Battery Convertor yellow-new - Walmart.com
Amazon.com : DM18M Battery Adapter for Dewalt 20V Convert to for Makita 18V Lithium BL1830 BL1840 BL1850 14.4V-18V Battery : Tools & Home Improvement