The GOOLOO GT4000 is a robust and versatile jump starter designed to revive your vehicle’s dead battery in minutes. It’s a compact and portable device that can be a lifesaver in emergencies or during outdoor adventures. But it’s more than just a jump starter; it’s a portable power bank, a flashlight, and a safety companion all rolled into one.
GOOLOO GT4000 features
- 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.
- 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 also prevents scratches or damage to the surface. A rubber cover to prevent dust from entering.
- Emergency Life Saver. Not only a car starter, it also features as a 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.
GOOLOO GT4000 Advantages & Disadvantages
| Advantages | Disadvantages |
|---|---|
| ✔️ Built-in Flashlight: The integrated LED flashlight is a valuable tool, offering illumination in low-light situations. It can also serve as a strobe light for emergencies and an SOS signal for distress situations. It enhances safety and visibility in various scenarios. | ✖️ Initial Cost: The upfront cost of purchasing a jump starter like the GT4000 might seem significant. However, it’s essential to consider it as an investment in your vehicle’s safety and convenience. The cost can outweigh the inconvenience of being stranded with a dead battery. |
| ✔️ Compact and Portable: The compact and portable design of the GT4000 makes it easy to carry and store in your vehicle. 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. | ✖️ Limited Battery Life: Like all jump starters, the GT4000 has a finite number of jump starts per charge. To ensure it’s always ready for action, regular recharging is essential. It’s crucial to maintain its battery life, especially for infrequent users. |
| ✔️ Safety Features: The GT4000 prioritizes safety with features such as protection against over-current, short-circuits, overcharging, and reverse polarity. These safeguards ensure a secure jump-starting process and protect both your vehicle and the device. |
How to use this jump starter
Using the GOOLOO GT4000 jump starter is a straightforward process, but it’s essential to follow the instructions carefully to ensure safety and effectiveness. Here’s a step-by-step guide on how to use it:
- Connect the Clamps: Attach the red clamp to the positive terminal and then, the black clamp to the negative terminal of your vehicle’s battery.
- Power On: Press the power button on the GOOLOO GT4000 to activate it.
- Start Your Vehicle: Turn the ignition key, and then, the jump starter will supply the necessary power to start your engine.
GOOLOO GT4000 Comparison
 |  |  | |  |  | |
| Model | GE1200 | GT3000 | GP3000 | GT4000 | GT4000S | GP4000 |
| Amps | 1200 Amps | 3000 Amps | 3000 Amps | 4000 Amps | 4000 Amps | 4000 Amps |
| Gas Engines | Up to 8.0 Liters | Up to 10.0 Liters | Up to 9.0 Liters | Up to 12.0 Liters | Up to 12.0 Liters | All Gas |
| Diesel Engines | Up to 6.0 Liters | Up to 8.0 Liters | Up to 7.0 Liters | Up to 10.0 Liters | Up to 10.0 Liters | Up to 10.0 Liters |
| Working temperature | -4ºF ~ 140ºF | -4ºF ~ 140ºF | -4ºF ~ 140ºF | -4ºF ~ 140ºF | -4ºF ~ 140ºF | -4ºF ~ 140ºF |
| Waterproof | Water resistant | IP65 | Water resistant | IP65 | IP65 | Water resistant |
| Life time | >1000 cycles | >1000 cycles | >1000 cycles | >1000 cycles | >1000 cycles | >1000 cycles |
| Start Current | 350A(3s) | 600A(3s) | 600A(3s) | 800A(3s) | 800A(3s) | 800A(3s) |
 | | | | | |
User Reviews
Smmoua – ★★★★★ (5/5)
Works well!
My car kept dying and I didn’t wanna call AAA each time so I got this jump starter instead! Besides, using the boost feature, my car starts up every time. Although I’ve got a new car, I still keep this handy in the back, just in case. The only downside is it doesn’t come with a wall charger (sold separately) so you won’t get a full 100% charge, but it does include a USB cord charger and one for the car.
Danny – ★★★★★ (5/5)
Great product
OMG this thing is incredible. I have used it in -15* weather. Besides, I used the boost feature and the car popped right off. I would not be scared to buy any GOOLOO product if I needed it. Thanks GOOLOO!!
Mez –★★★★☆ (4/5)
Good item when in a bind
Have needed this a few times. Works everytime so far. Light is useless in low light areas or at night, because it points in the opposite direction of the clamps.