Enter the 18V ONE+ System with the RYOBI ONE+ 18V HP Brushless 20" Self-Propelled Lawn Mower. Powered by the revolutionary ONE+ HP technology, this mower delivers more power than a 150cc gas mower, all while being 60% quieter than gas mowers and even quieter than other cordless mowers. With (4) included 18V ONE+ 4Ah batteries, this mower provides up to 45 minutes of runtime, making it perfect for lawns up to 1/3 acre. The CROSS CUT™ Multi-Blade System delivers a superior cut, producing the industry’s best bagging, mulching, and side discharge. ONE+ HP technology combines a brushless motor, advanced electronics, and high-performance lithium technology that work together to increase blade speed and power through the toughest cuts, all with just the push of a button. The variable speed self-propelled drive system ensures an effortless, efficient mowing experience. With features like easy fold handles for compact storage, a single-point height adjustment, and easy-lift bag removal, mowing and storage have never been easier. Best of all, it is part of the RYOBI 18V ONE+ system where any 18V ONE+ battery works with any 18V ONE+ product. The kit includes the P11011 18V ONE+ HP Brushless 20" Lawn Mower, (4) PBP005 18V ONE+ 4Ah Lithium Batteries, (2) P117 18V ONE+ Quick Chargers, Grass Catcher Bag, Mulch Plug, Start Key, Side Discharge Chute, and Operator’s Manuals.