Amazon.com: Synergy Digital Power Tool Battery, Compatible with Makita BCS550Z Power Tool, (Li-Ion, 14.4V, 3000 mAh) Ultra High Capacity, Replacement for Makita 194065-3 Battery : Tools & Home Improvement
Makita BCS550Z 18V LXT Lithium Ion Cordless 5-/8" Metal Cutting Saw | Partswarehouse
for Makita Bl1840 18V 4000mAh Battery for Makita BCS550 BCS550f BCS550rfe BCS550z - China Makita Bl1840, Makita Battery | Made-in-China.com