Dewalt Heavy-duty XRP 18 Volt Batery Pack - Amazon.com
DEWALT 4-Tool 18-Volt Nickel Cadmium (Nicd) Power Tool Combo Kit with Soft Case (2-Batteries and charger Included) in the Power Tool Combo Kits department at Lowes.com
Dewalt 20v Battery Max Powerstac Compact Battery 1.7ah Dcbp034 Replacement Li-ion Battery For Dewalt Max Xr Power Tool Batteries - Battery Pack - AliExpress
DEWALT 20V MAX Battery Adapter Kit for 18V Tools with Charger / 2 Batteries / Adapter | City Mill
DEWALT 20V MAX Battery Adapter Kit, 18V to 20V, 2 Batteries and Charger Included (DCA2203C)