Secret Makita USB Charging Adaptor For 18V Batteries!! - YouTube
Badaptor Makita Battery Adapter to Ryobi 18v One+ Works with Ryobi 18v – Knottec Wood Repair Glue
MT20RNL Adapter for Makita 18V Battery to for Roybi 18V Battery,Most Batteries for MAKITA:BL1860B / BL1860 / BL1850B / BL1850 / BL1840 / BL1830B / BL1830 / BL1820 / BL1815 etc. - - Amazon.com
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 :
STACYC Battery Adapter (Makita)
Makita Power Supply Battery Adapter – DesignMakeShare
14.4V 18V lithium battery for makita with USB adapter – Melasta
Converter Adapter MT20RNL Junctor Use Makita 18V Li ion Battery BL1830 For Ryobi nickel or Lithium battery P103 P108 One+ Tool|Battery Storage Boxes| - AliExpress