12 volt compressors

Do you know of any good 12 volt Compressors . I have looked at some but they come up short. I have a 2500 Chevy and a 30 ft Sunnybrook 5th wheel with 16 inch tires. I put up to 80 lbs in the tires and am looking for a 12 volt unit. It is not easy sometimes to find a place where you can add air to your tire pulling a 5th wheel.