Amazon.com: 【Fast USB | Replace for De Walt 18V to 20V Battery Adapter】 Converter DCA1820 for Dewalt 18V Tools Convert Dewalt 20V Battery DCB203 DCB206 to Dewalt 18V XRP NiCd NiMh Battery
2Pack Upgraded 3.6Ah Ni-Mh 12 Volt DC9071 Replacement Battery for Dewalt 12V Battery Compatible with Dewalt 12 Volt DW9071 DW9072 DE9037 DE9071 DE9072 DE9074 DE9075 Cordless Power Tool Batteries - Amazon.com