The GOOLOO GP4000 is a portable jump starter and power bank designed to provide a solution for jump-starting vehicles with dead batteries and charging various electronic devices. GOOLOO is a reputable brand known for manufacturing high-quality battery-related products, and the GP4000 is no exception.
GOOLOO GP4000 features
- High Peak Current. The GOOLOO GP4000 offers a high peak current of up to 4000A, allowing it to jump-start a wide range of vehicles, including cars, trucks, motorcycles, boats, and more. This high current output ensures that even larger engines you can start it with ease.
- Portable Power Bank. In addition to jump-starting capabilities, the GP4000 serves as a portable power bank. It features multiple USB ports, including USB-A and USB-C, which enable you to charge various electronic devices such as smartphones, tablets, laptops, and more. This versatility ensures that you stay connected and powered up while on the road.
- Built-in LED Flashlight. The GP4000 includes a built-in LED flashlight with multiple lighting modes, including a steady beam, SOS signal, and strobe light. This flashlight is a handy tool for emergencies, providing illumination in low-light conditions or when you need to signal for help.
- Safety Features. Safety is a top priority with the GP4000. It features multiple safety protections, including over-current protection, short-circuit protection, overload protection, over-voltage protection, and over-charge protection. Besides, these safeguards help prevent damage to your vehicle or electronic devices.
- LCD Screen. The device has an LCD screen that displays essential information, such as the remaining battery power, voltage, and charging status. This screen provides real-time feedback, ensuring you have all the necessary information at your fingertips.
- Multiple Charging Options. With both USB-A and USB-C ports, the GP4000 offers flexibility when it comes to charging your devices. USB-C is known for its fast charging capabilities, making it convenient for quickly charging compatible devices.
- Rechargeable. The GOOLOO GP4000 is rechargeable, meaning you can power it up and keep it ready for use whenever you need it. It typically comes with an included charger for recharging the device.
GOOLOO GP4000 Advantages & Disadvantages
| Advantages | Disadvantages |
|---|---|
| ✔️ Compact and Portable: Despite its power, the GP4000 is designed to be compact and portable, making it easy to carry and store in your vehicle. | ✖️ Price: Jump starters with these advanced features can be relatively expensive compared to basic models. |
| ✔️ Safety Features: It incorporates various safety protections to prevent damage to your vehicle or devices, providing peace of mind during use. | ✖️ Weight: Due to its powerful capacity, the GP4000 may be heavier than smaller, less capable jump starters, which could affect portability for some users. |
| ✔️ Carry Case: The included carrying case helps you keep the device organized and protected during storage or transport. | |
| ✔️ Compatibility: The GP4000 is compatible with a wide range of vehicles, including gasoline and diesel engines. It can handle engines up to 10.0L for gasoline and 7.0L for diesel. |
How to use this jump starter
Using the GOOLOO GP4000 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 the black clamp to the negative terminal of your vehicle’s battery.
- Power On: Press the power button on the GOOLOO GP4000 to activate it.
- Start Your Vehicle: Turn the ignition key, and the jump starter will supply the necessary power to start your engine.
GOOLOO GP4000 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
Fernando – ★★★★★ (5/5)
Very good quality-price ratio
It came at 75% charge and without charging it to 100% it started a diesel, with the battery dead, five times and the charge only dropped 15%, when it is fully charged it will last much longer. So far very satisfied. All the best.
Stella – ★★★★☆ (4/5)
Perfect!
It works perfectly, but please, Spain also exists in the world, put the instructions in our language.
Alfredo – ★★★★★ (5/5)
The power it has to start a 2l diesel, with its battery discharged.
In addition, it does not discharge easily and you can use it for several loads. The bad thing, the meager manual and that it does not come in Spanish, not even on the website.