The Makita 36V (18V X2) LXT Brushless Rear Handle 7-1/4" Circular Saw Kit (XSR01PT) is powered by two 18V LXT Lithium-Ion batteries for maximum performance. It has an electronically-controlled BL Brushless motor that delivers 5,100 RPM for maximum performance and 50% longer run time per charge. The saw delivers up to 558 cross-cuts per charge in 2x4 SPF using two LXT 5.0Ah batteries. It features a large 2-9/16" cutting capacity at 90Deg and a built-in tether notch for added convenience.