BL1815 battery rebuild (Date code from July 2011) (No Star symbol) (kept the original BMS). : r/Makita
Makita 18V NiCad Rechargeable Battery Rebuild Kit (Sub C 2.1A Full Size 1 5/8" Tall)
Repacking Makita 18v Lithium battery with New Cells (Save $$$'s) - YouTube
18v LXT Battery Repair – Chip Reset By Ryan Flint – April 2013 Introduction The Makita range of battery power too… | Battery repair, Repair, Battery hacks
Amazon.com: Upgraded to 9.0Ah 1 Pack Lithium Ion Battery Replacement for Makita 18V Battery BL1860 BL1830 BL1840 BL1850 BL1850B LXT-400 with LED Indicator Compatible with All Makita 18V Cordless Power Tools :
Makita – Power Tools Battery Pinouts – Laptop Battery Analyzer and Repair Forum