Amazon.com: Adapter Converter for Makita 18V BL1860 BL1850 BL1840 Li-ion Battery to Ridgid AEG 18V Hyper li-ion Power Tool Battery : Tools & Home Improvement
Makita DCW180Z 18V X2 LXT® Lithium-Ion, 12V/24V DC Auto, and AC Cooler/Warmer, Tool Only - - Amazon.com