Amazon.com: EID for Dewalt 20V to 18V Battery Adapter, 2-Pack DM18D Upgraded Version DCA1820 Converter for Dewalt 18V/20V & for Milwaukee M18 18V Battery to Work for Dewalt 18V Nicad & NiMh
20V Battery Adapter DCA1820 for Dewalt 18V Tools Convert All Dewalt Lithium Battery Convertor yellow-new - Walmart.com
Battery Adapter Dm18d With Usb compatible With 18v - Temu
Adapter (adapter) for AEG (Ridgid) 18V battery-for DeWalt 14,4v old tool - AliExpress