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: WORTHMAH BL1860 6.0Ah 18 Volt Battery Replacement for Makita 18V Battery with LED Indicator BL1815 BL1860 BL1830 BL1850B-2 LXT-400 Cordless Power Tools,2 Packs with 1 Carpenter Pencil : Tools & Home Improvement