Makita LXT 18V Lithium-Ion Battery 4.0Ah with Fuel Gauge BL1840B Two Pack - Walmart.com
Amazon.com: TREE.NB 18V 6.0Ah Lithium Ion Battery Replacement for Makit BL1815, BL1830, BL1835, BL1840, BL1850, BL1860, LXT400, 194204-5, 194205-3, 194230-4, 194309-1 (6000mAh 18V) : Health & Household
18V 4.0ah Lithium-Ion Rechargeable Battery Bl1840 for Makita Power Tools Black - China Lithium Battery and Power Tools Battery Replacement price | Made-in-China.com