The RYOBI 40V HP Brushless 20" Self-Propelled Multi-Blade Mower delivers more power than a 150cc gas mower, making it a true gas replacement. The included 40V 8Ah battery provides up to 50 minutes of runtime on a single charge, ideal for up to 1/2 acre. Experience the industry’s best 3-in-1 cutting performance with the CROSS CUT™ Multi-Blade System. This allows for less clumping when mulching, further & more even dispersal when side discharging, and when bagging the fine clippings fill from back to front to maximize space for less bag changes. The brushless motor and advanced electronics automatically react to mowing conditions by increasing the blade speed to eliminate bogging down and powering through the toughest cut. Equipped with self-propelled rear wheel drive, this mower ensures an effortless, efficient mowing experience. When the job is done, the handles easily collapse for compact, vertical storage. Best of all, it is part of the RYOBI 40V system where any 40V battery works with any 40V product. This self-propelled mower is backed by the RYOBI 5-Year Manufacturer's Tool Warranty, 3-Year Manufacturer's Battery Warranty, and includes the RY401026 40V HP Brushless 20" Self-Propelled Multi-Blade Mower, OP40804 40V 8Ah Lithium Battery, OP406 40V Rapid Charger, Grass Catcher Bag, Start Key, Mulch Plug, Side Discharge Chute, and Operator's Manuals.