Amazon.com: 【Upgrade】 CaliHutt 18V 6.0Ah Replacement Battery for Makita 18V Battery with LED Indicator BL1830 BL1850 BL1840 BL1850B-2 BL1845 BL1815 BL1820 LXT-400 LXT Cordless Power Tools Lithium-ion Battery : Tools & Home
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