2X3pcs 18V 6AH 6000mA li ion Battery for MAKITA BL1860 Power Tool Battery BL1850 BL1840 BL1830 94205 3 LXT400 with LED Gauge|Replacement Batteries| - AliExpress
for Makita 18V 6Ah 5Ah Battery LXT BL1850B BL1830 BL1860 B Li-ion DC18RD Charger | eBay
Makita 18V Battery - 6Ah Battery to run the largest 18V line