compressor works exactly as described. I used to inflate two trailer tires from about 35psi to 50psi with no problem and I still had battery power to inflate the truck tires as well. icarmant is lightweight, easy to use and very accurate according to tpms systems on truck and trailer. One touch fill button means you can set your desired psi value, touch the fill button and check in a minute to see the progress π π I believe. If you care about your tires, you'll be glad you have this item.