Got a Slime 120 lb DC compressor from Amazon that has battery clips (not the cigarette lighter thing that won't deliver the amperage needed). I've used it several times for a tire that picked up a nail, was plugged, but the plug didn't seal well. Some liquid Slime fixed that, but I had to let all the air out and then refill the tire to 80 psi - while in a campground. It's also topped off my truck tires several times as well. Comes in a little briefcase kind of box. Great little unit - not fast, but gets the job done for only a few pounds weight.
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