DEWALT 20V MAX Battery Adapter Kit, 18V to 20V, 2 Batteries and Charger Included (DCA2203C) - Amazon.com
DEWALT 18V to 20V MAX Lithium-Ion Battery Adapter Kit (2 Pack) DCA2203C - The Home Depot
DeWalt Adapter Kit | Add to Cart Now | Multi Fit Blades
Amazon.com: Power Wheels Adapter for Dewalt 20V Battery Adapter Power Wheels Battery Conversion Kit with Switch, Fuse & Wire Terminals, 12AWG Wire, Power Connector for DIY Ride On Truck, RC Car Toys