Amazon.com: QINIZX Battery Adapter for Makita 18 Volt NiCad & NiMh Cordless Power Tools, Convert Makita BL1830B BL1850 BL1860 BL1840B 18V Lithium-Ion Battery to Makita 18V Ni-Cd/Ni-Mh Battery Converter : Tools &
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 Battery: