MT20DL Battery Adapter, Convert for Makita 18V Li-ion Battery to for DeWalt 18V/20V Lithium-Ion Tool Battery Adapter, Use for DeWalt 18V/20V Max Li-ion Cordless Power Tools - Amazon.com
Amazon.com: 6.0Ah Replace for Makita 18V Battery BL1860B, Ultra High Capcaity Compatible with Makita 18 Volt Lithium Battery BL1850 BL1850B BL1840 BL1840B BL1830 BL1830B BL1815B with Battery Holder 2 Pack, Black :
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