DIY battery adaptor For dewalt 18V/20V max to Power source DC 12V 5A Dual USB | eBay
DEWALT 20-Volt MAX XR Cordless Brushless 5 in. Random Orbital Sander (Tool-Only) DCW210B
DEWALT 5-Tool 20-Volt Max Brushless Power Tool Combo Kit with Soft Case (2-Batteries and charger Included) in the Power Tool Combo Kits department at Lowes.com