DEWALT 20V MAX Battery Adapter Kit, 18V to 20V, 2 Batteries and Charger Included (DCA2203C) - Amazon.com
Replacement for Dewalt DCB105 DCB112 DCB115 12V/20V MAX Lithium Ion Battery Charger Compatible with Dewalt DCB201 DCB200 DCB204 DCB206 DCB207 DCB203 DCB127 DCB230 DCB101 Compact Drill Driver Batteries - Amazon.com
Amazon.com: JJXNDO 1-Pack DM18D Upgraded Version DCA1820 Converter for Dewalt 18V/20V & for Milwaukee M18 18V Battery to Work for Dewalt 18V Nicad&NiMh Battery Tool(Convert Lithium Battery to Nicad/Nimh Battery) : Tools