BL1890 Battery Case PCB Charging Protection Board Shell Box For MAKITA 18V BL1860 9.0Ah 6.0Ah LED Li ion Battery Indicator|Battery Storage Boxes| - AliExpress
Makita USA - Product Details -BL1850B2DC2
FirstPower Battery Adapter for Makita 18V Lithium-ion Power Tools,Convert Milwaukee 18V or Dewalt 20V Lithium-ion Battery to