Amazon.com: Amityke Battery Adapter,Power Wheels Adapter for Makita 18V/14.4V Battery BL1820, BL1830, BL1840, BL1850 with 14 awg Wires Power Convertor for DIY Ride On Truck, Robotics, RC Toys and Work Lights :
60W Power Inverter 220V USB Charger for Makita 14.4V 18V Lithium Battery BL18xx | eBay
194959-2 - Akku-Adapter 36,0V
Makita 230V zu 18V Akku-Adapter | Cordless to cord - Makita Hack | Makita Akku mit 230V Dauerstrom - YouTube