BL1830 Li ion Battery Case Charging Protection Circuit Board Box PCB For Makita 18V 3.0Ah 6.0Ah LED Battery Indicator BL1860 BMS|Power Tool Accessories| - AliExpress
Makita 18-Volt LXT Lithium-Ion High Capacity Battery Pack 3.0Ah with Fuel Gauge (2-Pack) BL1830B-2 - The Home Depot