Review of the new Makita BL1840 18V 4.0Ah Li-Ion Battery
Amazon.com: 6.0Ah Replace for Makita 18V Battery BL1860B, Ultra High Capcaity Compatible with Makita 18 Volt Lithium Battery BL1850 BL1850B BL1840 BL1840B BL1830 BL1830B BL1815B with Battery Holder 2 Pack, Black :
14.4V to 18V for Makita Power Tools Battery Charger for Makita Bl1830 Bl1840 194205-3 Fast Li-ion 18V Cordless Drill Charger - China Charger and Rechargwebale price | Made-in-China.com