Introduction
Thank you for choosing the GOOLOO GE3000 Jump Starter. This powerful and versatile device is designed to provide reliable jump-starting for a wide range of vehicles, along with convenient portable power bank and LED flashlight functionalities. Please read this manual carefully before use to ensure safe and optimal operation.
Important Safety Information
Always observe the following safety precautions when using the GOOLOO GE3000 Jump Starter:
- Do not attempt to jump start a vehicle with a severely damaged or frozen battery.
- Ensure proper polarity connection (red clamp to positive, black clamp to negative) to avoid sparks and damage.
- Do not short-circuit the clamps.
- Keep the device away from children.
- Do not expose the device to extreme temperatures or moisture.
- If the device becomes excessively hot during use, disconnect it immediately.
- Refer to your vehicle's owner's manual for specific jump-starting procedures.
- The device includes multiple safety protections such as over-charge, reverse-polarity, short-circuit, over-current, AI software, spark-proof, over-load, high and low-temperature, over-voltage, and reverse charge protection.

Figure 1: The GOOLOO GE3000 features 10 types of advanced safety protections to ensure secure operation during jump-starting and charging.
Package Contents
Verify that all items are present in the package:
- GOOLOO GE3000 Jump Starter Unit
- Smart Jumper Cables with Clamps
- USB to Type-C Charging Cable
- User Manual
- Storage Bag

Figure 2: All components included in the GOOLOO GE3000 Jump Starter package.
Product Overview
Familiarize yourself with the different parts and functions of your GOOLOO GE3000 Jump Starter:

Figure 3: Key components and ports of the GOOLOO GE3000 Jump Starter.
- Power Switch: Turns the device on/off.
- Battery Display Screen: Shows battery level, input, and output power.
- 12V Jump Starter Cable Socket: Connects the smart jumper cables.
- Type-C Input Port: Used for charging the jump starter.
- USB Output Port (5V/2.4A): For charging mobile devices.
- LED Emergency Flashlight: Provides illumination with multiple modes (normal, SOS, strobe).
Charging the GOOLOO GE3000
Before first use, fully charge the jump starter. It is recommended to recharge the device every 3 months to maintain battery health.
- Connect the provided USB to Type-C charging cable to the Type-C Input Port on the jump starter.
- Connect the other end of the USB cable to a 5V/2.4A USB wall charger or car charger (not included).
- The battery display screen will show the charging progress. The device is fully charged when the screen indicates 100%.

Figure 4: Charging the GOOLOO GE3000 with a wall charger. A full charge takes approximately 3.8 hours.

Figure 5: Charging the GOOLOO GE3000 using a car charger. A full charge takes approximately 3.8 hours.
Operating Instructions: Jump Starting a Vehicle
The GOOLOO GE3000 is capable of jump starting vehicles with up to 8.5L gasoline engines or 6.0L diesel engines.
- Prepare the Vehicle: Ensure the vehicle's ignition is off and all accessories (headlights, radio, etc.) are turned off.
- Connect Jumper Cables to Jump Starter: Insert the blue plug of the smart jumper cables into the 12V Jump Starter Cable Socket on the GOOLOO GE3000. Ensure a firm connection.
- Connect Clamps to Vehicle Battery:
- Connect the red positive (+) clamp to the positive (+) terminal of the vehicle's battery.
- Connect the black negative (-) clamp to the negative (-) terminal of the vehicle's battery.
The smart jumper cables have built-in protections. If the connections are incorrect, an alarm will sound, and the indicator light will show an error. Correct the connection before proceeding.
- Check Indicator Light: Once connected correctly, the indicator light on the smart jumper cable will turn solid green, or the display on the jump starter will show "READY" (or similar indication). If the battery is completely dead, the "READY" indicator might flicker, and you may need to use the BOOST function.
- Start the Vehicle: Turn the vehicle's ignition key to start the engine. If the engine does not start immediately, wait 20-30 seconds before trying again. Do not crank the engine for more than 3 seconds per attempt.
- Disconnect Jumper Cables: Once the vehicle starts, immediately remove the black negative (-) clamp from the vehicle battery, followed by the red positive (+) clamp. Then, disconnect the smart jumper cables from the GOOLOO GE3000.

Figure 6: Connecting the GOOLOO GE3000 to a vehicle battery for jump starting.

Figure 7: Step-by-step guide for jump starting a vehicle.
Using the BOOST Function
If the vehicle battery is extremely low or completely dead, the "READY" indicator on the smart clamp may not illuminate or may flicker. In this case, you can use the BOOST function:
- Ensure the clamps are correctly connected to the vehicle battery terminals.
- Press and hold the "BOOST" button on the smart clamp for 3 seconds until the green "READY" light becomes solid.
- Immediately start the vehicle within 30 seconds.
- Once the vehicle starts, disconnect the clamps as described in step 6 above.

Figure 8: Using the BOOST function for severely discharged batteries.
Additional Functions
Portable Power Bank
The GOOLOO GE3000 can also serve as a portable power bank to charge your electronic devices.
- Connect your device's USB charging cable to the USB Output Port (5V/2.4A) on the jump starter.
- The jump starter will automatically begin charging your device.

Figure 9: Using the GOOLOO GE3000 as a portable power bank.
LED Emergency Flashlight
The built-in LED flashlight offers multiple lighting modes for various situations.
- Press the Power Switch once to turn on the flashlight (Normal mode).
- Press again for SOS mode (slow flashing).
- Press a third time for Strobe mode (fast flashing).
- Press a fourth time to turn off the flashlight.

Figure 10: The GOOLOO GE3000's LED flashlight with multiple modes.
Maintenance and Storage
- Clean the device with a dry, soft cloth. Do not use harsh chemicals or abrasive materials.
- Store the jump starter in its protective bag in a cool, dry place, away from direct sunlight and moisture.
- For optimal battery life, fully charge the device every three months, even if not in use.
- Keep the clamps clean and free of corrosion.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Jump starter does not turn on. | Battery is completely discharged. | Charge the jump starter fully. |
| Vehicle does not start. | Incorrect clamp connection (reverse polarity). | Ensure red clamp is on positive (+) and black clamp on negative (-). The smart clamp will alert you if incorrect. |
| Vehicle does not start. | Vehicle battery is severely discharged. | Use the BOOST function. |
| Vehicle does not start. | Jump starter battery is too low. | Check the battery display screen and recharge if necessary. |
| Smart clamp indicator shows error. | Short circuit, reverse polarity, or other safety trigger. | Disconnect clamps, check connections, and ensure no short circuits. Refer to safety information. |
Specifications
| Feature | Detail |
|---|---|
| Model | GE3000 (JS-538) |
| Peak Current | 3000A |
| Vehicle Compatibility (Gasoline) | Up to 8.5L |
| Vehicle Compatibility (Diesel) | Up to 6.0L |
| Battery Type | Lithium-Polymer |
| Output Voltage | 12V DC (Jump Start) |
| USB Output | 5V/2.4A |
| Type-C Input | 5V/2.0A (or as specified on device) |
| Weight | 890 g |
| Dimensions | 19.5 x 12.8 x 10.5 cm (approximate package dimensions) |
Warranty and Support
GOOLOO provides comprehensive customer support for its products.
- Warranty: Enjoy 18 months of friendly customer support.
- Return Policy: 30-day unconditional return guarantee.
- Technical Support: Lifetime customer and technical support.
- For assistance, please contact GOOLOO customer service through the retailer's platform or visit the official GOOLOO website.





