Seems like your luck and mine run the same. We were out in Montana last month and I carry a small compact {"Slime" I believe} air compresor I had gotten as a christmas gift. So I take it out of the spiffy little zip up holder, attach it to the bike tire, plug it in and Nothing, zippo, nada. JUNK! About the only thing its good for is showing you the air pressure. Not worth the extra weight, so in the trash it went.