Amazon.com: Lasica 2Pack DCA1820 18V to 20V Adapter Compatible with DEWALT 18V XRP Tools - Compatible with Dewalt 20V Max Battery DCB201 DCB203 DCB204 DCB206 - Replacement for DeWalt Battery Adapter DCA1820 :
Amazon.com: 【with USB】 Replace for Dewalt 18V to 20V Battery Adapter Converter DCA1820 for Devvolt 18V Tools, Convert Devvolt 20V Battery DCB203 DCB206 to Devvolt 18V XRP NiCd NiMh Battery DC9098 DC9096 :
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
DEWALT Battery Adapter 18V to 20V, For Drills, Sanders and More, Charger Not Included, Bare Tool Only (DCA1820) - Amazon.com
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