2 x 12V 12 Volt NiMh DW9050 Univolt Battery for DEWALT DW945 | eBay
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
DEWALT 20V MAX XR Premium Lithium-Ion 5.0Ah Battery Pack with Bluetooth Connectivity (2 Pack) DCB205BT-2 - The Home Depot