Review on C P CHANTPOWER Tire Inflator Air Compressor: 12V DC Portable Car Tire Pump with Auto Shut Off, Bright LED Light for Car Tires, Bike Tires, and Other Inflatables by Donald Waller

The first one had a short in the connector. Sent back for exchange. Used twice, looks good. The third time I had 30 pounds in my bike tire and wanted 50. When I pocketed it, it started squeaking like a bad timing belt and bounced onto the sidewalk. Unplugged/plugged in multiple times. When he came back he made a horrible moan, then an asthmatic lung squeeze and actually sucked the air out of my tire! From 30 to ZERO while looking shocked. I didn't even know it was possible with this device. It's late at night and I can't drive. This is the WORST compressor ever! I would put negative stars if I could.