Amazon.com : TPDL DCA1820 Battery Adapter Replace for Dewalt 18V to 20V Lithium Ion Battery Converter, Work for Dewalt 18V Nicad & Nimh Battery Power Tools (2 Packs) : Tools & Home Improvement
Battery Adapter Converter for Dewalt 18V NiCad and NiMn-tool to Makita 18V Li-ion battery BL1820/30/40/50/60
Original DeWalt 18V NiCad Battery DC9098 Type 1 | eBay
DC9096 DC9098 2.5Ah Replacement Battery Compatible with Dewalt 18 Volt Battery Charger Replacement for Dewalt 7.2V-18V NiCad NiMh Battery DC9096 DC9098 2Pack - Walmart.com