The GB70 is a portable lithium-ion battery jump starter pack that delivers 2,000-amps (15,700 J3S) for jump starting a dead battery in seconds. It features a patented safety technology that provides spark-proof connections and reverse polarity protection making safe and easy for anyone to use. It's a powerful battery booster that doubles as a portable power source for recharging USB devices, like a smartphone, tablet and more, or powering 12-volt devices, like a tire inflator, power inverter and much more. Designed for a car, boat, RV, truck and more with gas engines up to 8 liters, and diesel engines up to 6 liters. •A lithium battery jump starter rated at 2,000 Amps (15,700 Joules3S). •Spark-proof connections and reverse polarity protection. •Recharges USB devices, like smartphones, tablets, and more. •Power 12V devices anywhere, like tire inflators, power inverters, and more. •400 lumen LED flashlight with multiple modes, including SOS. •Jump starts gas engines up to 8 liters, and diesel engines up to 6 liters. •Provides up to 40 jump starts on a single charge.