The RYOBI 40V HP Brushless 21" Push Multi-Blade Mower Kit delivers more power than a 196cc gas mower, making it a true gas replacement. The (2) included 40V 6Ah batteries give you up to 80 minutes of runtime for easily tackling up to 3/4 acre while utilizing two active battery ports. RYOBI 40V HP Technology utilizes a brushless motor & advanced electronics that automatically react to mowing conditions by increasing the blade speed to eliminate bogging down & powering through the toughest cut. 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 CUT COMMAND CENTER™ helps you monitor runtime and blade life & activate turbo mode and lights right at your fingertips. Achieve an extra boost to power through tough grass with the turbo mode. This mower is equipped with a single-point height adjustment allowing you to easily select the perfect height for your lawn. The One-Touch folding handles quickly and 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 mower is backed by the RYOBI 5-Year Manufacturer's Tool Warranty & 3-Year Manufacturer’s Battery Warranty.