The Duracell® Powerpack 450 model # 852-1950-07 is easy to use and ready when you need it to provide 450 watts of household power. Its voice technology instantly gives you information on the expected runtime of your devices the second you plug them in. In addition, its on-demand information provides battery status so that you know if your Powerpack is charged before you leave the house. In emergency situations, the step-by-step usage instructions walk you through what to do to jumpstart your car or use the air compressor to inflate a tire. Powerful enough to jumpstart both 4 and 6 cylinder engines, the Powerpack is suitable companion for a car, truck, boat or small RV. The Powerpack can power a wide range of DC products from coolers at the beach to DC chargers for cell phones, GPS systems and handheld game consoles.