Amazon.com: Bonacell 4Pack 18V Replacement for Makita Battery 18V, Compatible with Makita 18V Battery BL1860 BL1850 BL1840 BL1830 BL1820 BL1815B LXT400 : Tools & Home Improvement
18V 12000mAh Lithium Ion for Makita Batter Latest Upgraded BL1860 Rechargeable Battery 18v BL1840 BL1850 BL1830 BL1860B LXT40 - AliExpress
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Makita 18V LXT Tools and 4.0Ah Battery Compatibility?
18V LXT Lithium-Ion 4.0Ah Battery - Industrial Tool and Supply
Amazon.com: POWTREE Upgraded 3.5Ah 2Packs BL1860B Battery and DC18RD Charger Compatible with Makita 18V Battery BL1860 BL1850 BL1850B BL1840 BL1840B BL1830 BL1830B BL1815B LXT400 18-Volt Power Tools Batteries : Tools & Home