The Performance Tool W1665 Jump Starter is a powerful and versatile tool that can help you tackle a range of tasks. With 900 Peak Amps and 400 Cranking Amps, it can easily jump start your vehicle's dead battery. The built-in 300 psi air compressor/inflator allows you to inflate tires, rafts, balls, air mattresses and other inflatables with ease. The 7 blue LED work light provides bright illumination in dark conditions, making it easy to work on your vehicle or inflate items in low light. The reverse polarity warning light and beep signal help prevent damaging the unit or battery, and the three LED battery level indicator keeps you informed of the power level at all times. Equipped with a 12 Volt, 12AH Sealed Lead Acid Battery, the Performance Tool W1665 is a reliable and portable power unit that comes with a UL Certified 120V/12V charging adapter for added convenience.