Makita Bl1850 Battery Replacement 18V Electric Lithium-Ion Coreless Power Tool Power Supply Machine Tool Battery Power Supply Battery Charger Power Inverter - China Battery Pack, Replacement Battery | Made-in-China.com
Amazon.com: LaiPuDuo Battery Replacement Plastic Case for Makita Battery 18V BL1830 BL1840 BL1850 LXT400 PCB Circuit Board Replacement No Cells Included 3A 4A 5A : Tools & Home Improvement
Amazon.com: Lithium Ion Battery Case Parts Replacement for Makita 18v 3ah BL1830 BL1830B 4ah BL1840 BL1840B 5ah BL1850 BL1850B 6ah BL1860 BL1860B Battery, 5.0Ah Plastic Cover Repair Kit with Circuit Board :
Recover Makita Battery - YouTube
4.0ah Powerful And Trusted Replacement For Makita 18v Battery, Compatible With Makita 18 Volt Battery Replacement Battery For Makita 18v Tools - Temu
BL1815 battery rebuild (Date code from July 2011) (No Star symbol) (kept the original BMS). : r/Makita