Amazon.com: Replace for DEWALT Battery Adapter 18V to 20V, Milwaukee M18 Adapter to Dewalt 18V, Converter for Dewalt 18V/20V & for Milwaukee M18 18V Battery to Work for Dewalt 18V Nicad &
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