GOOLOO GT1500
GOOLOO GT1500 Jump Starter Battery Pack User Manual
Model: GT1500
Introduction
This user manual provides essential information for the safe and effective operation, maintenance, and troubleshooting of your GOOLOO GT1500 Jump Starter Battery Pack. Please read this manual thoroughly before using the device and retain it for future reference.
The GOOLOO GT1500 is a powerful and portable jump starter designed to start 12V vehicles with up to 8.0L gas and 6.0L diesel engines. It also functions as a portable power bank for charging electronic devices and includes an integrated LED flashlight.
Product Overview


What's in the Box
- 1 x GOOLOO GT1500 Compact Car Jump Starter
- 1 x Smart Jumper Clamp
- 1 x USB to Type C Cable
- 1 x Carry Bag
- 1 x User Manual

Safety Information
Always observe the following safety precautions to prevent injury or damage to the device:
- Do not immerse the unit in water. While water-resistant to splashes, it is not waterproof.
- Do not disassemble the unit. Refer all servicing to qualified personnel.
- Keep out of reach of children.
- Ensure proper polarity connection when jump starting to avoid sparks and damage. The smart jumper clamps provide protection against reverse polarity.
- Do not jump start a frozen battery.
- Do not use the jump starter if the cables or clamps are damaged.
- Charge the unit fully before first use and after each jump start.

Setup and Charging
Initial Charge
Before first use, fully charge the GOOLOO GT1500. The unit comes with a USB to Type C cable. You can charge it using a compatible USB wall charger (not included) or a car charger (not included).
- Connect the USB-C end of the cable to the "In/Out USB-C" port on the jump starter.
- Connect the USB-A end to a USB power adapter.
- The LED indicators will light up to show the charging progress. All four LEDs will be solid when fully charged.
- A full charge typically takes about 4 hours.


Operating Instructions
Jump Starting a Vehicle
- Prepare the Vehicle: Ensure the vehicle's ignition is off and all accessories (lights, radio, A/C) are turned off.
- Connect Jumper Cables:
- Insert the blue plug of the smart jumper clamp into the jump starter's blue port.
- Connect the red (+) clamp to the vehicle's positive (+) battery terminal.
- Connect the black (-) clamp to the vehicle's negative (-) battery terminal.
- The indicator light on the smart clamp will show the connection status. A solid green light indicates a correct connection.
- Start the Vehicle: Once the smart clamp indicator is solid green, start your vehicle's engine. If it doesn't start immediately, wait 30 seconds and try again. Do not crank for more than 3 seconds per attempt.
- Remove Cables: Once the vehicle starts, immediately remove the black (-) clamp from the vehicle battery, then the red (+) clamp, and finally disconnect the smart clamp from the jump starter.


Using as a Power Bank
The GT1500 can charge various electronic devices via its USB output ports.
- Connect your device's USB charging cable to one of the USB output ports (USB1: 5V/2.4A, USB2: 5V/9V/12V Quick Charge) or the USB-C port (5V/3A).
- The jump starter will automatically begin charging your device.


Using the LED Flashlight
The built-in LED flashlight has multiple modes:
- Press the flashlight button once for a steady light.
- Press again for strobe mode.
- Press a third time for SOS signal mode.
- Press a fourth time to turn off the flashlight.

Maintenance and Storage
- Recharging: Always recharge the unit after each use, especially after jump starting a vehicle.
- Storage: Store the jump starter in its carry bag in a cool, dry place. Avoid extreme temperatures. The unit is designed to work well in temperatures from -4°F to 140°F (-20°C to 60°C).
- Long-term Storage: If storing for extended periods, charge the unit every 3 months to maintain battery health. It can hold a charge for more than 3 months.
- Cleaning: Wipe the unit with a dry, soft cloth. If it gets splashed with water, wipe it off immediately.


Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Jump starter does not turn on. | Battery is depleted. | Charge the jump starter fully. |
| Vehicle does not start. | Incorrect clamp connection; Battery is severely damaged; Engine issues unrelated to battery. | Check clamp connections (ensure solid green light on smart clamp). If battery is too low, press the "BOOST" button on the smart clamp (if available and safe to do so per clamp instructions). Consult a mechanic for engine issues. |
| Smart clamp indicator light is red or flashing. | Reverse polarity; Short circuit; Over-temperature. | Disconnect clamps and re-connect correctly. Check for short circuits. Allow unit to cool down if overheated. |
| Cannot charge external devices. | Jump starter battery low; Incorrect cable/port. | Recharge the jump starter. Ensure correct USB cable and port are used. |
Specifications
| Feature | Detail |
|---|---|
| Model | GT1500 |
| Peak Current | 1500 Amps |
| Engine Compatibility | Up to 8.0L Gas, 6.0L Diesel |
| Battery Type | Lithium Polymer |
| Input/Output (USB-C) | 5V/3A (15W) |
| USB Output 1 | 5V/2.4A |
| USB Output 2 (Quick Charge) | 5V/9V/12V |
| Dimensions | 7.4 x 3.66 x 1.39 inches |
| Weight | 2.33 pounds |
| Operating Temperature | -4°F to 140°F (-20°C to 60°C) |
| Special Features | Water-resistant (splash-proof), LED Flashlight (Stable/Strobe/SOS), 10 Smart Protections (Over-charge, Over-current, Short-circuit, Reverse-Polarity, Low-temp, High-temp, Spark-proof, Over-Voltage, Over-Load, Reverse-Charge) |

Warranty and Support
Warranty Information
The GOOLOO GT1500 Jump Starter comes with an 18-month warranty from the date of purchase. Please retain your proof of purchase for warranty claims.
Additionally, GOOLOO offers a 30-day unconditional return guarantee.
Customer Support
For any questions, technical assistance, or warranty claims, please contact GOOLOO customer support. Lifetime customer and technical support are provided.
- Customer Service Hours: 24 Hours, 7 days a week.
- Refer to the official GOOLOO website or the contact information provided in the packaging for the most current support channels (e.g., email, phone number).
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