GOOLOOPortable Car Jump Starter Power Bank without Open the Engine Cover (White) Convenient to use: Without open the engine cover, just inset the car charger into the cigarette lighter, after 8~10mins, start you car. Act as a jump starter for 12V vehicle and mobile devices It can work in cold temperature and dangerous condition. The Operating Temperatures :-20??~60??. Use 7500mAh high capacity and high power battery. Support fast charging, low self-discharge, cycles can reach 1000 times. Support 3 lighting modes; Dual USB port:Whether for emergencies or everyday use, charge phones, tablets and other devices at speeds of 2 amps or 1 amp. Multiple safety protection design ensure jump starter zero defect. We offer 18-month warranty and friendly customer service.