Adapter For Lidl Parkside X20V to Dewalt Replace for Dewalt 18V XRP NI-CD Battery (Not include tools and battery) - AliExpress
Amazon.com: JJXNDO 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