Cooling down after mowing the lawn. I recently bought an electric mower, a Craftsman 2X20. It's not self-propelled, but that doesn't matter as it weighs only 35 pounds (16 kg) and I get only half as tired as I did with my old 60-pound gas mower. The specs say it should get 50 minutes per full charge, and I don't use half that for my yard. It's quiet, clean, and stores vertically in the garage.