Amazon.com: for Dewalt 20V to 18V Battery Adapter, JJXNDO 2-Pack DM18D Upgraded Version DCA1820 Converter for Dewalt 18V/20V & for Milwaukee M18 18V Battery to Work for Dewalt 18V Nicad & NiMh
Amazon.com: 【with USB】 Replace for Devvolt 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 :
2-Pack 3.6Ah HPB18 Ni-Mh Replacement Battery for Black and Decker 18V Battery HPB18-OPE Compatible with Black Decker Battery 18 Volt Tools A1718 FS180BX FS18FL FSB18 Firestorm Cordless Power Tool - - Amazon.com