Size: 700 Peak Amp with Compressor The Stanley FatMax 700a peak jump starter offers a convenient, portable way to jump start your battery without the need of another vehicle. With enough power to jump start your truck, car, motorcycle, boat, RV or tractor, the jump starter is ideal for every day use or roadside emergencies. Simply attach the clamps to the vehicle battery and if connected improperly the alarm will sound, alerting you to switch the clamps before turning on the unit. The jump starter features a 120 psi air compressor with easy-to-read backlit gauge to inflate tires, sport equipment and more and alternative 3.1 amp USB power sources for power outage emergencies and charging needs. (extension cord NOT included).