Amazon.com: UTRBATT 2 Pack 4.6Ah DC9096 Replace for 18V Battery Compatible with Dewalt 18 Volt Battery XRP DC9096 DC9099 DC9098 DW9099 DW9098 Cordless Power Tools : Tools & Home Improvement
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