Amazon.com: 2-Pack Upgraded 18V 5.0Ah Battery Compatible with Makita 18V Cordless Power Tools, Replace for Makita 18V Battery BL1860 BL1850 BL1840 BL1820 BL1830 BL1815B LXT400, Power Level Indicator : Tools & Home
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Amazon.com: 18V 5.0Ah Lithium-ion BL1830 Replacement Battery for Makita BL1815N BL1820 BL1830 BL1840 BL1845 BL1850 BL1850B BL1860 BL1860B LXT-400 194204-5 Cordless Power Drill Tools Batteries : Tools & Home Improvement
Amazon.com: 5.0Ah BL1850B Battery Replacement for Makita 18V Battery,5000mAh High Capacity Compatible with Makita LXT Lithium Ion Battery BL1815B BL1840B BL1830B BL1820B,2 Pack with Mount Holder ¡ : Tools & Home