1. Introduction
The GOOLOO A3 is a versatile 5-in-1 portable device designed for vehicle emergencies and daily utility. It functions as a powerful jump starter, a 150PSI tire inflator, a portable power bank, an LED flashlight, and an SOS emergency light. This manual provides essential information for safe and effective operation.
What's in the Box:
- 1 x GOOLOO A3 Jump Starter with Air Compressor
- 1 x Smart Jumper Cable
- 1 x USB-A to USB-C Cable
- 1 x Carrying Bag
- 1 x Pump Tube
- 5 x Air Nozzles
- 1 x User Manual

Image: Contents of the GOOLOO A3 Jump Starter package, including the main unit, cables, nozzles, and carrying bag.
2. Safety Information
Please read and understand all safety instructions before using this product. Failure to follow these instructions may result in electric shock, fire, and/or serious injury.
General Safety Warnings:
- Do not operate the jump starter if it is damaged.
- Keep out of reach of children.
- Do not expose the product to rain or wet conditions.
- Do not disassemble the unit. Refer servicing to qualified personnel.
Battery Safety:
- Ensure correct polarity connection (red clamp to positive, black clamp to negative). The smart jumper cable has built-in protection against reverse polarity.
- Do not short-circuit the jumper clamps.
- Do not jump start vehicles with severely damaged batteries.
Air Compressor Safety:
- Do not over-inflate tires. Always check the recommended PSI for your item.
- The unit may become hot during prolonged use. Allow it to cool down.
- Keep the air hose away from heat and sharp objects.

Image: Diagram illustrating the 10 built-in safety protections of the GOOLOO A3, including over-charge, short-circuit, smart-AI, spark-proof, reverse-polarity, over-current, over-discharge, high-temperature, over-voltage, and reverse-charge protection.
3. Product Overview / Components
The GOOLOO A3 combines multiple functionalities in a compact design. Familiarize yourself with the main unit and its accessories.

Image: The GOOLOO A3 main unit with jumper cables and various air nozzles.
Main Unit Features:
- Digital Display: Shows battery level, PSI, inflation mode, and error codes.
- Control Buttons: Power, Boost, Mode selection, Pressure adjustment (+/-).
- USB-A Output: For charging external devices.
- USB-C Input/Output: For charging the unit or external devices.
- Jumper Cable Port: For connecting the smart jumper cables.
- Air Hose Port: For connecting the pump tube.
- LED Flashlight: With Normal, Strobe, and SOS modes.

Image: Close-up of the GOOLOO A3's bright digital display showing battery level, PSI, and inflation modes.
4. Charging the Device
Before first use, fully charge the GOOLOO A3. It is recommended to recharge the unit after each use to ensure it's ready for emergencies.
Charging Instructions:
- Connect the provided USB-A to USB-C cable to the USB-C input/output port on the GOOLOO A3.
- Connect the other end of the USB-A cable to a suitable USB wall adapter (not included).
- The digital display will show the charging progress. The unit is fully charged when the battery indicator shows 100%.

Image: The GOOLOO A3 connected via USB-C to charge a smartphone, demonstrating its power bank capability.
5. Setup: Jump Starting a Vehicle
The GOOLOO A3 can jump start 12V vehicles with up to 9.0L gas and 6.5L diesel engines.
Step-by-Step Instructions:
- Connect Jumper Cables: Insert the smart jumper cable into the jump starter's port.
- Attach to Battery: Connect the red (positive) clamp to the vehicle's positive battery terminal and the black (negative) clamp to the vehicle's negative battery terminal.
- Check Indicator: The smart jumper cable's indicator light will show green if the connection is correct. If it shows red or buzzes, check the connections.
- Boost (if needed): If the vehicle battery is extremely low, press the "BOOST" button on the smart jumper cable. The indicator will turn solid green.
- Start Vehicle: Start your vehicle's engine within 30 seconds.
- Remove Cables: Once the vehicle starts, remove the jumper clamps from the battery, then disconnect the jumper cable from the GOOLOO A3.

Image: Visual guide on connecting the GOOLOO A3 to a car battery and starting the vehicle.
Video: Demonstration of the GOOLOO A3 Jump Starter in action, showing it successfully starting a vehicle.
Video: A user review highlighting the GOOLOO A3 as an essential tool for every vehicle.
6. Setup: Using the Air Compressor
The 150PSI air compressor can inflate various items with its 5 types of inflation modes and auto-shutoff function.

Image: Diagram illustrating the 10 built-in safety protections of the GOOLOO A3, including over-charge, short-circuit, smart-AI, spark-proof, reverse-polarity, over-current, over-discharge, high-temperature, over-voltage, and reverse-charge protection.
Step-by-Step Instructions:
- Connect Air Hose: Screw the pump tube onto the air hose port of the GOOLOO A3.
- Attach to Item: Connect the other end of the pump tube to the tire valve or desired inflatable item. Use the appropriate air nozzle if necessary.
- Power On: Press the power button to turn on the unit. The display will show the current PSI.
- Select Mode/Set Pressure: Press the mode button to cycle through SUV, Car, Bike, Ball, or Customizable modes. Use the +/- buttons to set your desired pressure.
- Start Inflation: Press the power button again to start inflation. The compressor will automatically stop when the preset pressure is reached.
- Disconnect: Remove the pump tube from the item and then from the GOOLOO A3.

Image: Step-by-step visual guide on how to connect the nozzle, select mode, start inflation, and auto-stop the GOOLOO A3 for tire inflation.
Video: A user demonstrating the GOOLOO A3's air compressor function.
Video: A user demonstrating the GOOLOO A3's air compressor function.
7. Operating Modes (Flashlight, Power Bank)
Beyond jump starting and inflating, the GOOLOO A3 offers additional utility features.
LED Flashlight:
- Turn On/Off: Long press the flashlight button to turn the light on or off.
- Change Modes: Short press the flashlight button to cycle through Normal, Strobe, and SOS modes.

Image: The GOOLOO A3's 400-lumen LED flashlight in use, showing its various modes.
Portable Power Bank:
- Connect your USB-powered device (e.g., smartphone, tablet) to the USB-A output port or USB-C input/output port using the appropriate cable.
- The GOOLOO A3 will automatically begin charging your device.

Image: The GOOLOO A3 connected via USB-C to charge a smartphone, demonstrating its power bank capability.
8. Maintenance
Proper maintenance ensures the longevity and optimal performance of your GOOLOO A3.
Storage:
- Store the unit in its carrying bag in a cool, dry place away from direct sunlight.
- Avoid extreme temperatures (-4°F to 140°F).
- Recharge the unit every 3-6 months to maintain battery health, especially if not used regularly.

Image: Illustration showing the GOOLOO A3's 24-month standby capability, indicating long-lasting charge retention.
Cleaning:
- Wipe the unit with a dry, soft cloth. Do not use harsh chemicals or abrasive materials.
- Ensure all ports are free from dust and debris.
9. Troubleshooting
If you encounter issues with your GOOLOO A3, refer to the common problems and solutions below.
Common Issues:
- Unit not turning on: Ensure the unit is charged. If the battery is completely depleted, it may take a few minutes to respond after connecting to a charger.
- Jumper cable indicator shows red/buzzes: Check for reverse polarity connection. Ensure clamps are securely attached to the correct battery terminals.
- Vehicle not starting: Ensure the GOOLOO A3 is fully charged. If the battery is extremely low, use the "BOOST" function. Check vehicle's battery terminals for corrosion.
- Air compressor not inflating: Ensure the air hose is securely connected. Check the preset pressure and ensure it's higher than the current tire pressure.
- Overheating: The unit may temporarily shut down if it overheats during prolonged use. Allow it to cool down before resuming operation.
10. Specifications
| Feature | Specification |
|---|---|
| Peak Current | 3000A |
| Engine Compatibility (Gas) | Up to 9.0L |
| Engine Compatibility (Diesel) | Up to 6.5L |
| Tire Inflator Pressure | 150 PSI (Max) |
| Air Flow | 35L/Min |
| Operating Temperature | -4°F to 140°F |
| USB-A Output | 5V/2.4A |
| USB-C Input/Output | 5V/2A |
| Item Weight | 3.45 pounds |
| Package Dimensions | 9.76 x 5.94 x 5 inches |
11. Warranty and Support
GOOLOO provides excellent customer support and product warranty.
- Warranty Period: 18 months from the date of purchase.
- Customer Support: For any questions, troubleshooting, or warranty claims, please contact GOOLOO customer service. Refer to the user manual for contact details or visit the official GOOLOO website.





