The car jump starter delivers a powerful initial surge of current (often ranging from 400A to 8000A) to instantly start gas and diesel engines up to 12L. Built-in smart clamps provide safety features like reverse polarity, over-voltage, and anti-spark protection and the Portable Power Bank with USB ports to charge smartphones, tablets, laptops, and other portable electronics . The built-in air compressor with adjustable pressure settings and attachments for inflating car tires, bicycle