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
Lasica Adapter Compatible with Makita 18V LXT Lithium Battery BL1830 BL1850 BL1860 BL1840 to Replacement for Makita 18 Volt Ni-Cd/Ni-Mh Tools Battery - - Amazon.com