18V 6.0Ah BL1850B Replacement Lithium-Ion Battery with LED Indicator Compatible for Makita 18V BL1830B BL1860B BL1820 LXT-400 - Walmart.com
Rechargeable Battery 18v Lithium Battery For Makita 18v B Series Battery With Battery Indicator Cordless Drill/saw/angle Grinder - Electric Saw - AliExpress
Makita Battery Indicator Lamp Explained - World of Power
Makita Battery Indicator Lamp Explained - World of Power
Makita BL4040 40V 4.0Ah MAX XGT Battery w/ LED Indicator – MaxTool