I have a small 175 PSI compressor I keep at my storage location, but I don't carry it on the road. I have a 12 volt compressor that is designed for Truckers that I bought at a truck stop. It has to be clipped directly to the battery (I have used the toad battery) and it will go up to 200 psi. But it does take a long time if the pressure is way down. I think I've only used it twice and one time I had a nail in the tire. So I pumped it up enough to get me to a tire shop to fix it.