This video documents the difference between an electric and gas mower in actual use. A standard gas mower would have just clipped a tree root. An electric mowers blades are not up to the job and neither is the motor. Electric Mowers are not equal to gas mowers even though they are twice the price. After paying double for the mower you don't even get half of the performance of a gas mower. Garbage, save your money and buy a gas mower. I'm an electrical engineer with over 40 years experience and I cannot recommend an electric mower. My son actually paid $700+tax for this POS. Save your money and buy a gas powered mower.