Car Jump Starter has an excellent ability of engine starting for people traveling by car. The car jump starter is to solve the problem that the car cannot start due to battery power loss, battery aging, cold weather or other conditions. This car jump starter adopts supercapacitor technology and has its unique features of maintenance-free and pre-charging free, no explosion and no fire (lithium batteries may explode and catch fire), and can reliably start the car in extremely cold weather (-40°C). In addition, the car jump starter also has the function of smart charging, which can collect energy from the battery according to the state of the car battery. This car jump starter makes engine smoother, more reliable and more powerful. It is a product that can assure user "your engine can start anytime, anywhere".