The SHA 140 is the most powerful battery-powered shredder vac in the STIHL lineup. It features a 14:1 reduction ratio and up to 60 minutes of run time when paired with the AP 300 S battery. The robust metal buckles and quick disconnect feature make cleaning and maintenance simple. With a durable, weather-resistant construction and trusted STIHL engineering, the SHA 140 is built for tough work. Run time may vary depending on usage and application. View Our Usage Chart