Amazon.com: MT20DL Battery Adapter for Makita 18V BL1830 BL1860 BL1815 Li-ion Battery Convert for Dewalt 18V 20V DCB200 Li-ion Battery : Tools & Home Improvement
Battery Adapter for Milwaukee™ M18 Tool to Dewalt™ 20V Max Battery – Workshop Outfitters
For Dewalt 20V Max Battery | DCB200 9.0Ah Li-ion Battery 2&4 Pack With — Vanon-Batteries-Store
Amazon.com: JJXNDO 1-Pack DM18D Upgraded Version DCA1820 Converter for Dewalt 18V/20V & for Milwaukee M18 18V Battery to Work for Dewalt 18V Nicad&NiMh Battery Tool(Convert Lithium Battery to Nicad/Nimh Battery) : Tools