Amazon.com: THISS 2Pack 18V 6.0Ah BL1860B Lithium-Ion Replacement for Makita 18V Battery with LED Indicator BL1830 BL1850 BL1840 BL1850B-2 BL1845 BL1815 BL1820 Cordless Power Tools : Tools & Home Improvement
Battery Adapter Compatible with Makita 18 Volt NiCad & NiMh Cordless Power Tools, Converter for Convert Makita BL1830 BL1850 BL1860 BL1840 18V Lithium-Ion Battery to Makita 18V Ni-Cd/Ni-Mh Battery
Amazon.com: Crtbelfy Battery Holder Mount for Makita 18V Battery Dock Holder Fit for BL1860 BL1850 BL1840 BL1830 Batteries - 5 Pack : Tools & Home Improvement