BL1815 battery rebuild (Date code from July 2011) (No Star symbol) (kept the original BMS). : r/Makita
Amazon.com: YongerTool 5.0Ah BL1850B Battery Replacement for Makita 18V Battery,5000mAh High Capacity Compatible with Makita LXT Lithium Ion Battery BL1815B BL1840B BL1830B BL1820B,2 Pack with Mount Holder : Tools & Home Improvement
1420 Makita® 14.4V Battery Rebuild Service – MTO Battery
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9101 Makita® 9.6V Battery Rebuild Service – MTO Battery