Amazon.com: Power Wheel Adapter with Fuse & Switch, Secure Battery Adapter for Makita 18V Lithium Battery, with 12 Gauge Wire, Good Power Convertor for DIY Ride On Truck, Robotics, RC Toys and
Amazon.com: Upgraded to 9.0Ah 1 Pack Lithium Ion Battery Replacement for Makita 18V Battery BL1860 BL1830 BL1840 BL1850 BL1850B LXT-400 with LED Indicator Compatible with All Makita 18V Cordless Power Tools :
Amazon.com: 18 Volt 5.0 AH Lithium-ion Battery - 2 Pack