18V Makita Durable Rechargeable Battery 18V 6Ah Lithium Battery, Used for Makita Power Tools BL1860 BL1840 BL1850 BL1830, etc.|Replacement Batteries| - AliExpress
BL18 Ready Dock for MAKITA 18V Mount - Store USA Made 4 Pack PN: BL18-RDx4 | eBay
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Makita USA - Product Details -BL1820B
Amazon.com: BL18 Power Dock for Makita BL1815 BL1830 Battery Quick Connect Disconnect Holder Mount DIY with 12AWG Crimped terminals USA PN BL18-Q12 : Electronics