The RYOBI 40V HP Brushless 21” Multi-Blade Push Mower delivers more power than a 170cc gas mower. It’s ideal for up to 1/2 acre and runs for up to 50 minutes using included 40V 7.5Ah batteries. 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. It’s equipped with a durable 21” deck that is lightweight, resists corrosion, and is covered by a limited lifetime warranty. When the job is done, the handles quickly and easily collapse for compact, vertical storage. Best of all, it is part of the 40V System – any 40V battery works with any 40V product. This 40V HP Brushless 21” Multi-Blade Push Mower is backed by the 5-year manufacturer’s tool warranty, 3-year manufacturer’s battery warranty, and includes the RY401020 40V HP Brushless 21” Multi-Blade Push Mower, OP40754 40V 7.5Ah Lithium Battery, OP406 40V Rapid Charger, Grass Catcher Bag, Start Key, Mulch Plug, Side Discharge Chute, and Operator's Manuals.