The GOOLOO GT4000S car jump starter is a powerful portable jump starter that quickly and reliably revives dead car batteries. Thanks to its powerful 100W fast-charging function, it provides rapid power for both the jump starter itself and compatible devices, minimizing downtime. Its compact and portable design makes it an essential companion on the go, providing emergency power when you need it most. Whether you're dealing with a dead battery or need a fast-charging solution while traveling, the GT4000S offers efficiency and convenience in a robust package.

The GOOLOO GT4000S car jump starter is your ultimate roadside savior. Delivering an incredible 4000A peak current, it jump-starts even the toughest vehicles. Engineered for power and reliability, it effortlessly revives 12-liter gasoline or 10-liter diesel engines – perfect for trucks, SUVs, RVs, and heavy equipment. Never wait for roadside assistance or beg for jumper cables again!

Compact and powerful: With this portable jump starter, you'll never be stranded. Simply connect, crank, and drive off – dead batteries don't stand a chance. Back on the road in seconds!

GOOLOO GT4000S Autostarter revolutionizes roadside emergencies with its 100W two-way fast charging system. This powerhouse not only jump-starts your vehicle in seconds, but recharges itself at blazing speeds, ready for another start in just 5 minutes after recharging.

Never let a low battery hold you back again! The GOOLOO GT4000S portable car charger doubles as a powerful portable charger, delivering up to 100W of fast charging so your MacBook runs at full speed – whether you're on the road, at the construction site, or working from home.

The compact GOOLOO GT4000S jump starter boasts ten advanced safety features for worry-free operation in all conditions. AI-powered software continuously monitors power flow and battery status in real time, while multiple physical protection mechanisms provide comprehensive safeguards: reverse polarity protection prevents damage from incorrect connections, overcharge/overvoltage protection ensures optimal charging conditions, and spark-proof technology prevents dangerous sparking during operation. Additional protection features include short-circuit protection in case of sudden electrical disturbances, extreme temperature protection, overcurrent/overload protection against voltage spikes, and reverse charge protection to prevent energy flow back into vehicles. This military-grade safety system guarantees reliable and risk-free performance when jump-starting vehicles and charging devices.

Lightning-fast charging – ready when you are!

Don't waste hours waiting – the GOOLOO GT4000S, the best portable jump starter, fully charges in just 1.2 hours thanks to its advanced fast-charging technology. This means less downtime and more power when you need it most.

The GOOLOO GT4000S automatic jump starter features a versatile 3-mode LED light for emergencies and outdoor adventures. Switch between spotlight mode for powerful illumination, continuous light mode for constant lighting when making repairs or camping, and SOS flashing mode for emergency signals.

The most powerful GOOLOO GT4000S jump starter combines enormous power capacity with versatile charging options, featuring a 100W USB-C port for ultra-fast bidirectional charging (perfect for laptops), an 18W USB-A port for fast charging of smartphones/tablets, and a powerful 15V/10A DC output for larger devices – making it an all-in-one power supply solution that keeps both your vehicle and electronics running, whether you're in an emergency or simply need reliable power on the go.

The GOOLOO GT4000S high-performance jump-start booster for semi-trucks offers an exceptional 24-month standby time. Its integrated intelligent energy management system ensures optimal charge levels when not in use, guaranteeing reliable emergency power when you need it most. This extended standby capability makes it the ideal companion for long-term vehicle safety, always ready for action.

The GOOLOO GT4000S high-performance jump starter features a robust IP65 design, providing comprehensive protection against rain, dust, and harsh weather conditions. Its waterproof and dustproof construction ensures reliable performance in any weather, whether it's a sudden downpour or dusty terrain. No need to worry about splashes or dirt – your jump starter will work even when you need it most. Built to last.

The GOOLOO GT4000S car battery jump starter makes starting your vehicle effortless thanks to its simple 2-step process: just connect the clamps to your battery and start the engine. With a powerful 4000A peak current and built-in safety features, you'll be back on the road in seconds – no complicated procedures or waiting required. This reliable, portable jump starter works with cars, trucks, motorcycles, and boats (up to 10.0L gasoline/8.0L diesel engines), making it the perfect emergency power solution for any driver.

The GOOLOO GT4000S car jump starter kit contains everything you need for emergency jump starts and on-the-go power supply: GT4000S portable jump starter, heavy-duty jump start cables, 100W car fast charger, USB to Type-C cable, Type-C to Type-C cable, cigarette lighter adapter, storage bag and user manual – a complete power supply solution for vehicles and devices.

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