Battery Adapter Dewalt 20v Max 18v Dock Power - Mt21dl Battery Converter Adapter - Aliexpress
Makita power tool with a DeWalt battery? Milwaukee running on Makita 18V? Battery adapters for tools - YouTube
Alian DM18M Battery Adapter for Dewalt 20V for Milwaukee 18V Battery M18 Convert to for MAKITA Battery,for Makita Power Tools,with USB Charging - - Amazon.com
Amazon.com: MT20DL Battery Adapter for Makita 18V BL1830 BL1860 BL1815 Li-ion Battery Convert for Dewalt 18V 20V DCB200 Li-ion Battery