Amazon.com: 2 Packs 18 Volt 6.0Ah Lithium BL1860B Replacement Battery Compatible with Makita 18V Battery BL1815 BL1820B BL1830 BL1840B BL1845 BL1850 with LED Inidcator : Tools & Home Improvement
Amazon.com : ARyee 2Pack Upgrade 18V 5.0Ah Li-ion Battery Replacement for Makita Lithium-Ion Battery Compatible with Makita BL1840 BL1850 LXT-400 BL1860 BL1815 BL1830 : Tools & Home Improvement
Amazon.com: MT20BSL Battery Converter Adapter for Makita 18V Li-ion Battery BL1830 BL1860 Used to for Bosch 18V Lithium Battery : Tools & Home Improvement