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
Amazon.com : Dosctt 2 Packs 18 Volt 3.0Ah BL1830B Replacement Battery Compatible with Makita 18V Battery Lithium BL1815 BL1820 BL1830 BL1840 BL1850 BL1860 LXT-400 : Tools & Home Improvement