Schumacher DH110 Jump Starter Quickly jump starts vehicles in emergency situations, especially 4-6 cylinder cars Scrolling digital display gives you step-by-step instructions to properly jump start your battery 5x more life cycle, lithium batteries give 5x more cranks than lead acid battery jumpers Energy efficient LED light can be used as a work light, flash/hazard light or SOS message flashing Lithium ion protection prevents overcurrent, short-circuit, overload, overvoltage and overcharge