Amazon.com: Makita BL1815N 18V 1.5Ah Lithium Ion Battery : Tools & Home Improvement
Upgraded to 9.0Ah 1 Pack Lithium Ion Battery Replacement for Makita 18V Battery BL1860 BL1830 BL1840 BL1850 BL1850B LXT-400 with LED Indicator Compatible with All Makita 18V Cordless Power Tools