Our top pick can get up to 75 minutes on a single charge, but those numbers can vary widely depending on your usage and environmental conditions. Larger batteries can last more than an hour while smaller capacity batteries can sap a full charge in as little as 30 minutes. Check the manufacturer’s page for an estimated run time and be realistic about your needs. You don’t want to run out of juice halfway through clearing your driveway, but you also don’t want to deal with the extra cost, weight, and noise if you don’t have to.