GOOLOO GT4000S portable car jump starter with 4000A peak current and 20000mAh (74Wh) battery capacity. Supports 12V gasoline and diesel engines; features USB-C PD100W in/out, QC3.0 USB-A, a second 5V/2.4A USB-A port, and a 15V/10A DC out (150W max). Box has been opened; the unit, carrying bag, USB-C cable, DC charging cable, and quick reference guide are all present and appear unused. Condition: item shows no signs of use — surfaces are clean with no scratches or wear
