For Makita 18V BL1830 BL1840 BL1850 4.0Ah Battery Replacement 2-PACK W – Batteriesup
Amazon.com : ARyee 2Pack Upgrade 18V 5.0Ah Li-ion Battery Replacement for Makita Lithium-Ion Battery Compatible with Makita BL1840 BL1850 LXT-400 BL1860 BL1815 BL1830 : Tools & Home Improvement
BL1830 Li ion Battery Case Charging Protection Circuit Board Box For Makita 18V 3.0Ah 6.0Ah Label LED Battery Indicator BL1860|Battery Storage Boxes| - AliExpress