Amazon.com: 2 Pack 18V 5000mAh Lithium-ion Replacement Battery for Makita and 14.4V-18V Replacement Charger for Makita BL1830 BL1850 BL1840 : Tools & Home Improvement
Amazon.com: QSDXNYDC Power Wheels Battery Adapter Compatible for Makita 18V BL1830 with Fuse&Switch 14 AWG Good Power Convertor for DIY Ride on Truck,Robotics,RC Toys and Work Lights : Tools & Home Improvement