Gooloo GT4000 Jump Starter 74Wh

The Gooloo GT4000 74Wh jump starter is a high-performance portable power solution designed to provide reliable emergency starting for a wide range of vehicles. Engineered with advanced battery technology, this device delivers a massive peak current of 4000A, making it capable of jump-starting gasoline engines up to 12.0L and diesel engines up to 10.0L. Its robust construction and integrated pre-heating technology ensure dependable operation even in extreme cold, while its multi-functional design allows it to serve as a versatile power bank for various electronic devices.

Advantages

The primary advantage of the Gooloo GT4000 lies in its exceptional power-to-size ratio, offering the ability to perform up to 60 jump starts on a single charge. The inclusion of pre-heating technology allows the device to function effectively in temperatures as low as -40°C, providing peace of mind during harsh winter conditions. Furthermore, the device features a 100W USB-C Power Delivery port, which enables rapid charging for laptops and smartphones, effectively replacing the need for multiple separate chargers. The clear 3.2-inch LED display provides real-time feedback on battery status and operating conditions, ensuring user-friendly operation during critical moments.

Suitable for

• Emergency jump-starting of passenger cars, SUVs, and commercial vehicles
• Starting large-displacement gasoline and diesel engines
• Providing portable power for laptops, tablets, and smartphones
• Roadside assistance and off-road travel in extreme weather conditions

When it may not be suitable

This device may be overkill for users who only operate small motorcycles or scooters, as its high-capacity output is specifically optimized for larger automotive engines. Additionally, while it is highly versatile, it is not intended to replace dedicated high-capacity power stations for powering heavy-duty appliances or tools.

Key specifications

• Capacity: 74Wh (5000 mAh, 14.8V)
• Peak current: 4000A
• Starting current: 800A
• Engine compatibility: Up to 12.0L gasoline / 10.0L diesel
• Display: 3.2-inch LED screen
• Protection rating: IP65 (dust and splash resistant)
• Operating temperature: -40°C to 60°C
• Charging time: Approximately 1.2 hours with 100W PD charger

How to use

To use the jump starter, first ensure the device is sufficiently charged by checking the LED display. Connect the provided jumper cables to the device and attach the clamps to the corresponding vehicle battery terminals, following the safety indicators on the unit. Once connected, the device will automatically detect the connection and prepare for the start. After the vehicle engine starts, disconnect the clamps promptly. For power bank functionality, simply plug your device into the appropriate USB or DC output port on the unit.

What to consider before purchase

• Verify that your vehicle's battery voltage is compatible with the device.
• Ensure you have a high-wattage PD charger if you wish to achieve the fastest recharge times.
• Consider the storage space in your vehicle for the included carrying case.

Usage recommendations

Always store the jump starter in a dry place and maintain at least a 50% charge level to ensure it is ready for emergency situations. Avoid leaving the device in direct sunlight for extended periods during summer months.