Amazon.com: 2 Pack 18V 5000mAh Lithium-ion Replacement Battery for Makita and 14.4V-18V Replacement Charger for Makita BL1830 BL1850 BL1840 : Tools & Home Improvement
Amazon.com: 4Pack 18V 6500mAh BL1860B Replacement Lithium-ion Battery Compatible with Makita 18V Battery BL1860B BL1850 BL1850B BL1840 BL1840B BL1830 BL1830B BL1815 BL1815B Power Tools : Tools & Home Improvement
Amazon.com: Power Wheel Adapter for Makita 18V Battery with Fuse & Switch & Wire terminals,Power Connector for Rc Car, Robotics, Rc Truck,DIY use, Work with for Makita BL1860 BL1850 BL1840 BL1830 Li-ion
2Pack BL1840B 4.0Ah 18V Replacement Battery for Makita 18v Battery Lithium Compatible with Makita 18 Volt Battery BL1815 BL1820 BL1830 BL1840 BL1850 - - Amazon.com