100W Max Two-way Fast Charging: Only takes 1.2 hours to fully charge the car battery charger jump starter from 0% to 100%. 5 minutes of charging time are enough to start a car. (100W car charger is included in the package).You can also use your own fast-charging charger to charge this jump starter through the type-c port.Pre-heating Tech: A world-advanced technology that makes it possible to start a dead car in an extremely cold environment even at -40. Our GT4000 Lithium battery jump starter will be your best road trip companion in winter.Up to 100W Charging Speed for MacBook & Other Laptops: Charge it whenever and wherever as fast as the original adaptor for your laptops(Type-C port only).Safe & Easy to Jumpstart: All information about the product status is intuitively displayed on the 3.2-inch LED screen. Built-in 10 kinds of protection technology to free your mind of misgivings of misoperation and sparks.It's a compact yet powerful portable jump starter battery pack for starting 12.0L gasoline engines or diesel engines up to 10.0L in just a few seconds.Advanced Design: Gooloo's most advanced jump pack ever Rugged build enclosure rated IP65 water-resistant and 94V0 flame retardant. The rubber over-molded shell prevents scratches or damage to the surface. A rubber cover to prevent dust from entering.Emergency Life Saver: Not only a car starter,the GOOLOO GT4000 also features as a 26800mAh power bank includes three USB Ports (PD100W TYPE-C 5V/3A In&Out, USB 5V/9V/12V Quick Charge, USB 5V/2.4A ), and a 400 lumen LED light with 3 modes(SOS, SPOTLIGHT, STROBE).Plus a 15 volt 10 Amps port for powering any 15V or 12V DC devices, like tire inflators, inverters, and more.In The Box: Gooloo 4000A SuperSafe Handheld Car Battery Jump Starter GT4000, Heavy Duty Jumper Cables, SC 100W Car Charger, USB to Type-C Cable, Type-C to Type-C Cable, Cigarette Lighter Adapter, Storage Bag, User Manual.