MT20ML Battery Converter Adapter for Makita 18V/20V Li-ion Battery BL1830 BL1860 BL1815 for Milwaukee M18 Li-Ion Battery - - Amazon.com
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