Use any brand battery in any power tool 18v-20v DEWALT MILWAUKEE MAKITA PORTER CABLE BOSCH adapters - YouTube
Battery Adapter for Dewalt 20 V Lithium-Ion Battery Makita to 18 V Lithium-Ion Battery, Black ABS Battery Adapter Built-in PCBA: Amazon.de: DIY & Tools
Makita 18V Battery Convert To DEWALT 20V MAX CORDLESS Power Adapter on OnBuy
Badaptor - DeWalt to Makita 18V Battery Adapter | DIY at B&Q
Amazon.com: MT20DL Battery Adapter for Makita 18V BL1830 BL1860 BL1815 Li-ion Battery Convert for Dewalt 18V 20V DCB200 Li-ion Battery
Amazon.com: Battery Adapter for Makita DCA1820 18V Compatible with Makita Lithium Battery Convert for DeWalt CA1820 18V DC9180 DC9096 Tool Use : Tools & Home Improvement