Review on Cordless Rechargeable Tire Inflator Air Compressor - Portable Car Tire Pump for Bikes & Inflatables, 12V Auto Stop with Pressure Gauge (Red, 150PSI Max) by Bill Dahl

This is an improved version of the corded portable gas generator that is now being discontinued. It basically works the same as a wired inflator in terms of inflation time, level of heat used, etc. But it can sort of "cut the cord", which makes the upgrade worth it to me. I had virtually no expectations for this little guy and so far I'm very happy with him. The display is nice and bright, but not too bright. Using this gas generator at night was easy, especially with the built-in flashlight. It charges in about 5 hours or so. A fully charged one can probably fill four flat tires on a sedan before running out of juice. (I haven't tested it, but I've used it enough times to see how much the battery drains after inflating a flat tire). My only concern, as others have mentioned, is that the pump cable is too short. This is a small downside, however, as you can place the inflator wherever you need it as long as the battery is charged. Overall I would highly recommend this little beast if you are looking for a rechargeable portable inflator without breaking the bank.