2-Pack 3.0Ah 18 Volt BL1830B Battery Replacement for Makita 18V Battery Lithium ion BL1815 BL1815N BL1820 BL1820B BL1830 BL1840 BL1840B BL1850 BL1840B BL1860 BL1840B with LED Indicator - - Amazon.com
Amazon.com: EID 150W Power Inverter Portable for Makita 18V BL1830 BL1850 Lithium Battery,DC 18V to AC 110V Outdoor Inverter with AC Outlet and Dual USB+200LM LED : Automotive
Amazon.com: SUnMilY for Makita 18v Battery, 6.0Ah Replacement Lithium Batteries Compatible with Makita Battery 18V BL1860 BL1850 BL1850B BL1840 BL1840B BL1830 BL1830B BL1815B (4 Pack) : Tools & Home Improvement