Battery Adapter Converter for Makita 18V Li ion BL1820/30/40/50/60 Li ion Battery To Dewalt Adapter 18V NI CD/NI MH Accessories|Power Tool Accessories| - AliExpress
DEWALT 20-Volt MAX Lithium-Ion Battery Adapter for 18-Volt Tools-DCA1820 - The Home Depot
Amazon.com: DCA1820 18V to 20V Lithium Battery Convert Adapter to Nickel for Charger Tools Adapter for Dewalt Batteries : Tools & Home Improvement
DEWALT 18-Volt to 20-Volt MAX Lithium-Ion Battery Adapter Kit (2-Pack)-DCA2203C - The Home Depot
Adapter with USB Port Replacement for Dewalt 18V to 20V Adapter, Convert Dewalt 20V Lithium Battery DCB204 DCB205 DCB206 to Dewalt 18V NiCad NiMh Battery DC9096 DC9098 DC9099 - Walmart.com