Makita XT439PMB 18V X2 LXT Lithium-Ion Cordless 4-Pc. Combo Kit (4.0Ah)- Discontinued by Manufacturer (Discontinued by Manufacturer) 18V X2 Circular Saw with Makita-built motor delivers 4,800 RPM for fast cutting and ripping; weighs only 10.1 lbs. with batteries for operator comfort Two 18V LXT Lithium-Ion Batteries deliver the power and performance of a corded saw without leaving the 18V LXT platform Two 18V LXT Lithium-Ion batteries deliver up to 2.5X more cuts per charge Reinforced magnesium base for durability 18-Volt LXT Lithium-Ion 4.0Ah battery BL1840B, features an integrated L.E.D. battery charge level indicator (for MB kits)