Quickly jump starts power sport vehicles, motorcycles and 4-6 cylinder cars. Great for emergencies. TSA checkpoint friendly, for extra power while traveling. Scrolling digital display provides step-by-step instructions for jump starting your vehicle 75% lighter and smaller than lead-acid jump starters-fits in your travel case, backpack or glove box. Built-in lithium ion protection prevents overcurrent, short-circuit, overload, overvoltage and overcharge. 2.1A USB port for charging all USB devices, including smartphones, mp3 players and tablets. Built-in 3-mode LED light for use as a work light, flash hazard light or SOS message light.