10000MAH 10/8AH 18V li-ion rechargeable battery for MAKITA bl1890 bl1860 bl1840 BL1830 with LED really capacity input 21700 cell - AliExpress
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replacement For Makita BL1890 18V 9.0AH Lithium Ion Cordless Battery BL1860B | eBay
Amazon.com: BL1890 Battery case PCB Charge Protection Board housing case for Makita 18V BL1860 9.0Ah 6.0Ah LED Lithium ion Battery Indicator (Box with PCB) : Tools & Home Improvement