The 950 QuickCable 12 Volt 1000 Peak Amp Rescue Booster Pack With Air has everything you've always wanted in a jump starter and more. It starts with a Heavy-Duty 18 amp hr battery with 1000 peak amps of power to start even the most stubborn vehicles. 55" long cables to reach batteries over the fender. One of the most important features is the reverse polarity connection circuit which eliminates shorting out a vehicles system due to accidental reverse hook-up. Illuminated clamps light the battery terminals in dark environments ensuring perfect connections and an area light for under the hood that also acts as an emergency flasher for road side safety. A built-In air compressor has a higher rating than most as well as a pressure gauge with added tips for most recreational and sporting needs. Recharging is a snap with its charger made right inside the case, just plug it in via the supplied power cord and your done. Top that off with a battery monitoring gauge and you will see why this unit will never leave you stranded.