Amazon.com: 5.0 Ah bl1850b Replacement for Makita 18V Battery,5000mAh High Output Compatible with Makita 18V LXT Lithium Ion Battery BL1850B BL1840B BL1830B BL1820B with Mount Holder, 4 Pack : Health & Household
Amazon.com: 18V 5.0Ah BL1850B Battery Replacement for 18V Battery BL1830 BL1850 BL1840 BL1850B-2 BL1845 BL1815 BL1820 BL1860B LXT-400 18-Volt Cordless Power Tools Batteries : Tools & Home Improvement
Amazon.com: New 2 Pack 18V 3.0Ah Lithium Battery Replacement Compatible with Makita 18V Battery and BL1850B BL1840B BL1830B BL1815B LXT-400 Battery Tools : Tools & Home Improvement
MT20DL Battery Adapter for Makita 18V Li-ion Battery BL1830 BL1860 BL1815 BL1840 BL1850B Li-Ion Battery Convert to for Dewalt 20V Lithium-ion Battery DCB200 with USB Charger - - Amazon.com