Even in the middle of a north Florida winter I could not resist ordering this Ryobi battery powered lawnmower. My new Ryobi 16 inch push mower is powered by their One+ Lithium Ion 18 volt 4ah batteries. These batteries are unique in that they are also compatible with a myriad of other Ryobi power tools. It only takes one of these to run the mower and they give you two. My video review shows how I assembled and immediately put the mower to work! Please excuse my error in declaring the total square feet mowed. The typo that made it into my review states "1943 cubic feet." It should have been 1943 square feet. The math is correct but the engineering units are wrong.