I purchased the dewalt battery converter : r/PowerWheelsMods
Battery Adapter for Dewalt Battery, Power Wheel Adapter for Dewalt 20v Battery,Power Wheels Battery Conversion Kit with Fuse and 14 Gauge Wire Connector for Ride On Truck, Robotics, Rc Toys - Amazon.com
SeeFish 20V Dewalt Battery Adapter – SeeLite
Amazon.com: DM18D Converter for DeWalt 18v to 20v Battery Adapter,for Milwaukee M18 18v Batteries Adapter, Convert to DC9096,fit for DeWalt 18v XRP Ni-Cad Cordless Tool,Upgraded Version of DCA1820,with USB port : Electronics
DEWALT 20-V Lithium-ion Battery Adapter (Charger Included) in the Power Tool Batteries & Chargers department at Lowes.com
Battery Adapter for DeWALT 20V Max 18v Dock Power Connector 12 Gauge Robotics … - Amazon.com
BATADPTDW - Power Tool Battery Adapter for DeWalt AND Hercules 20-Volt MAX 20v Dock Power Connector 10 Gauge - Makermotor
Adapter with 12V 5A DC Output Interface and Clip For DEWALT 18V 20V Li-Ion Battery
Review: DeWalt Battery Adapter for 18 Volt tools to 20V MAX Batteries — AZ DIY Guy
Adapter for 20V Dewalt Battery Adapter Convert for 18V Milwaukee M18 T – JYJZPB
18V to 20V Adapter | DEWALT
20V Battery Adapter DCA1820 for Dewalt 18V Tools Convert All Dewalt Lithium Battery Convertor yellow-new - Walmart.com
DEWALT 18V to 20V MAX Lithium-Ion Battery Adapter Kit (2 Pack) DCA2203C - The Home Depot
Dewalt Adapter, Dewalt Li-ion Battery Converter, 20V MAX Batteries Charger, DIY Connection Output Adapter, Power Wheels Battery Adapter - Etsy