Amazon.com: SUnMilY for Makita 18v Battery, 6.0Ah Replacement Lithium Batteries Compatible with Makita Battery 18V BL1860 BL1850 BL1850B BL1840 BL1840B BL1830 BL1830B BL1815B (4 Pack) : Tools & Home Improvement
T20RNL Battery Adapter For Makita BL 1840 Convert To Ryobi 18V DIY Power Tool US | eBay
6.0Ah For MAKITA BL1860B 18V LXT LITHIUM-ION BATTERY 18 Volt BL1830 BL1850B 1840 - Walmart.com
The 6.0ah Bl1860 That Replaces Makita 18v Lithium Ion Battery Is Compatible With Makita 18v Bl1850 1840 1830 Cordless Power Tool - Rechargeable Batteries - AliExpress