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GOOLOO FLAGSHIP GP4000 JUMP STARTER ENRICH YOUR DRIVING LIFE The GOOLOO GP4000 as our flagship product is a powerful and ultra-safe lithium jump starter box that delivers 4000-amps for jump-starting a car quickly. The best in-car breakdown assistance. START YOUR CARS IMMEDIATELY The high power of 4000 A peak current will support ALL engines of gasoline and 10.0-Liter engines of diesel at best. With it you can jump start a dead battery car in seconds without anyone else’s help. SPARK-PROOF REVERSE POLARITY PROTECTION 8 Security Protection – except for the reverse polarity protection it includes over-current protection overload protection over-voltage protection and overcharge protection making it safe for anyone to use. 30S GET RID OF THE FOLLOWING DILEMMAS Not confined to fixing up a dear car battery only having a GP4000 car booster pack on the go is the most advanced and effective way for you. CHARGE MULTIPLE DEVICES Not only can it jump start your car but it can also charge your multiple devices on the road like smartphones Bluetooth iPad and so on. A real portable power bank charger. BRIGHT LED EMERGENCY LIGHT A built-in LED light with 3 modes can be worked as a practical flashlight to check your car or send an SOS signal if needed. Completely ideal for darkness and emergency. JUMP-START CAR IN EXTREME WEATHER The operating temperature of GP4000 is under -4F104F-20C40C. It is easy to jump-start a dead car in ice and snow. Get your car up and running if your battery dies from age or weather. COME WITH 15V/10A DC INTERFACE The standard DC cigarette lighter female socketincluded is compatible with any 15 V electronic device without occupying the one in the car. Ideal for portable tire inflators or car vacuum cleaners.