2Pack For Makita BL1840B-2 18V Volt LXT Lithium Ion Battery BL1830B BL1840 4.0AH BL1850 BL1860 BL1860B BL1850B - Walmart.com
Waitley 18V 5.0ah Bl1850b Replacement Battery Compatible with Makita 18volt Bl1830b Bl1860b Bl1820 Bl1850 Bl1860 Bl1840 Bl1815 Lxt-400 with LED Power Display - China Lithium Battery and Power Tool Battery
Makita 18V LXT Tools and 4.0Ah Battery Compatibility?