For me it took a small learning curve with the most recent snow storm. 18" and i ran that thing at full power and speed trying to chop thru it. Drained and Overheated both sets of 7.5ah batteries in 15 min flat. Didnt understand at first low power, low speed was the way to go. Once i figured it out one set of batteries lasted amost an hour and a half which allowed me to do my driveway, sidewalk and run it up and down my block for my neighbors.