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Joybuy£79.99Visit shop Gooloo (Gooloo5) Gp4000 Jump Starter Power Bank, 4000 A Car Jump Starter 12 V (All Petrol And Up To 10 L Diesel) Supersafe Power Bank Jump Starter With Led, Portable Car Battery Booster With Jump Cable
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The GOOLOO GP4000 is an essential roadside companion designed for vehicle owners who need a reliable, high-capacity emergency power source for both jump-starting engines and charging mobile devices. It is ideal for drivers of cars, trucks, RVs, and boats, offering the power to start up to 10.0L diesel engines, though its heavy-duty build means it is larger and heavier than entry-level portable power banks.
| Model Part Number | GP4000 |
|---|---|
| Brand | GOOLOO |
Yes, the GP4000 is specifically engineered to handle diesel engines up to 10.0L.
It is recommended to maintain a charge level above 50% for optimal jump-starting performance.
Yes, the device features spark-free technology for added safety during connection.
The device features a low self-discharge rate, but it is best practice to charge it every 3 months if not used.
It is recommended to use the unit primarily for jump-starting or charging devices, rather than doing both simultaneously, to protect the internal battery.
The GP4000 is drop-resistant and rugged, but it is not waterproof. Avoid submerging it or using it in heavy rain.
Ensure the battery level is above 50%, check that clamps are making solid metal-to-metal contact with terminals, and ensure the clamps are connected with the correct polarity.
This indicates a safety protection trigger, such as a short circuit or reverse polarity. Disconnect the clamps, wait for the light to stabilize, and re-attempt the connection.
Verify the charging cable is fully inserted into the Type-C input port and confirm the power adapter used provides sufficient output (typically 5V/2A or higher).
To ensure the GP4000 is ready for use, keep the internal battery charged at least every three months. When jump-starting, ensure the device is charged to at least 50%. Always connect the red clamp to the positive terminal and the black clamp to the negative terminal; the intelligent cables will alert you if the connection is incorrect. After each use, inspect the clamps for debris and ensure the unit is stored in the included case to prevent damage to the ports. Keep the device away from moisture and direct sunlight when in storage.
