- Stanley 450 amp battery jump starter with compressor- Jump starts batteries without the need of another vehicle- Built-in 120 Volt AC charger, recharges unit with standard household extendion- 120 PSI compressor with easy to read backlit gauge. For fast inflation of tires, sport equipment and more- 270 Degree pivoting high powered LED emergency light- Reverse connection warning provides audible and visual alarm- Ideal for roadside emergencies and safety- Enough power to start cars, trucks, RVs and tractors with 12 volt battery systemsSTAJ45C09