Review on ETERNA Portable Air Compressor - Tire Inflator Pump with Digital Display, Emergency LED Light - 12V DC for Car Truck Bicycle RV & Other Inflatables by Anthony Arcos

The cable length is short, recommended for sedan only. Big trucks and vans could hardly make it to the end. The speed is fast! 3 PSI from 35 to 38 in about 15 seconds. It doesn't get very hot like some of the other devices I've tested. Don't worry about rechargeable lithium batteries when looking for a tire pump - batteries will die within a year if transported in a hot trunk. You end up with the same car as the Eterna but $20 cheaper.