The Makita 18V LXT Lithium-Ion Cordless 6-1/2? Circular Saw delivers cordless cutting power to the job site. The XSS02Z has a Makita-built high-torque motor and a compact design for a range of cutting applications. It will cut 2X material at 45 degrees. The Makita-built high torque motor produces 3,700 RPM for faster cutting. The heavy gauge, precision machined base is engineered for smooth, accurate cutting and added durability in harsh job site conditions. Makita 18V 5.0 Ah Lithium-Ion batteries resist self-discharge so they're ready for use even after long periods of storage. The Makita Rapid Optimum Charger is a smart charging system that communicates with the battery during the charging process to monitor current, voltage, and temperature. This advanced charging technology helps optimize battery life and deliver a faster charge. In addition, the Charger has a built-in fan to cool the battery for faster and more efficient charging, even in hot weather conditions.