Vastar Portable Air Compressor internal battery pack. I have been using a old 12v cigarette lighter powered compressor for a while and its been ok, but having to keep unwrapping the power lead and have a power unit to plug it into is a real pain, and let’s face it these older style units are also rather bulky, so that’s where this Vastar Portable Air Compressor comes into its own, it’s a tiny self contained unit thats has a rechargeable battery back that can inflate 6-8 tyres before needing to be recharged again, it also comes with everything you need …