12 Volt/120 Volt Portable Air Compressor

My Viair arrived the other day, they are big and heavy. I tried it out and was impressed. Since we have a short Class C, I was able to fill all of the tires using only one of the hoses supplied. I connected the compressor to one of the coach batteries, since the chassis battery in under the floorboard. It took about 3 minutes each tire to fill an additional 10 pounds. The compressor does get hot, as they all do, so I left it cool down before I packed it up again. I like the screw on hose end inflator. You don't have to hold the inflator on the tire and also squeeze the handle on the air gun at the same time. I had minimal air loss when I unscrewed the inflator hose, but my valve stems are pretty well positioned and accessible. I have had other rigs where the valve stems were shorter or poorly angled which could cause some problems due to the size of the screw-on inflator. A longer or better angled extension would help here.