GOOLOO A3 Jump Starter with Air Compressor: Complete User Guide
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Time to read 5 min
A dead car battery or underinflated tires can quickly turn a normal trip into a stressful situation. The GOOLOO A3 Jump Starter with Air Compressor is designed to handle both problems in one compact, portable device. This guide walks you through how to use the A3 safely, correctly, and effectively, whether you are jump-starting a vehicle, inflating tires, or using it as a portable power source.
Quick in
1. What is the GOOLOO A3 Jump Starter 2. Before First Use 2.1 Charge the Device First 2.2 Check Battery Power 3. How to Charge a GOOLOO A3 Jump Starter 4. How to Use an GOOLOO A3 Jump Starter 4.1 Step-by-Step Instructions 4.2 LED Indicator Meanings 4.3 Usage Limits 5. How to Use the Tire Inflator 6. LED Flashlight & Emergency Modes 7. Using the A3 as a Power Bank 8. Safety First: Guidelines You Must Follow 9. FAQs
1. What is the GOOLOO A3 Jump Starter
The GOOLOO A3 is a 5-in-1 portable power solution that combines:
- A 3000A peak jump starter for 12V vehicles
- A cordless smart tire inflator
- A portable power bank
- A LED flashlight + SOS emergency light
It’s compact, rugged, and designed to be part of your car emergency kit. Explore the full product details here: GOOLOO A3 Jump Starter with Air Compressor.
Looking for more options? Check out our full lineup: GOOLOO Jump Starters Collection.
2. Before First Use
2.1 Charge the Device First
Before using the A3 for the first time, fully charge it using:
- USB-C cable (included)
- 5V / 2A wall charger (not included)
A full charge typically takes 4–5 hours.
2.2 Check Battery Power
- Press the power button to view the battery level
- Four bars indicate a full charge
- Do not attempt to jump-start a vehicle if battery power is below 2 bars
3. How to Charge a GOOLOO A3 Jump Starter
Keeping your jump starter charged ensures it’s ready when you need it.
3.1 Charging the A3 Jump Starter
- Connect the included USB-C cable to a 5V/2A wall charger (not included).
- Full charge typically takes 4–5 hours.
- The battery icon will blink while charging and remain solid when fully charged.
3.2 When to Recharge
- After every jump-start session
- At least every 3 months if unused
- Before long trips
👉 For extended tips on maintaining peak charge and battery health, check out our complete article on how to charge a jump starter.
📹 See It in Action: Unboxing and Real-World Test
Before we dive into the details, check out this hands-on video to see exactly what comes in the box and how the GOOLOO A3 performs in a real-world jump start and inflation test.
4. How to Use an GOOLOO A3 Jump Starter
Using a jump starter doesn’t have to be intimidating. Here’s how to use your A3 safely and effectively:
4.1 Step-by-Step Instructions
Step 1: Check the Battery Level
Press the power button to view the current charge — aim for at least 2 bars before attempting a jump start.
Step 2: Connect the Jumper Cables
- Red clamp → positive (+) battery terminal
- Black clamp → negative (–) battery termina
Step 3: Watch the LED Indicators
The smart jumper cable tells you when the connection is correct:
- Solid Green → Ready to start
- Red → Reverse connection (reconnect clamps)
- Blinking Green → Low battery; press BOOST
- No light → Check connection or battery health
Step 4: Start Your Vehicle
Once a solid green light appears, start your car within 30 seconds.
👉 For a deeper dive into proper operation and safety, read our related guide: how to use a portable jump starter.
4.2 LED Indicator Meanings
| LED Status | What It Means | What To Do |
| Green (solid) | Correct connection | Start the engine |
| Red | Reverse connection | Reconnect clamps correctly |
| Green (blinking) | Battery voltage too low | Press BOOST, then start within 30s |
| No light | Battery may be damaged | Press BOOST, start within 30s |
4.3 Usage Limits
- Do not attempt more than 3 consecutive jump starts
- Wait 2 minutes between attempts
- Allow the unit to cool for 30 minutes before recharging after jump-starting
5. How to Use the Tire Inflator
The A3 features a smart digital inflator with automatic shut-off.
5.1 Power & Display
- Press and hold the power button for 2 seconds to turn on
- Screen displays:
- Battery level
- Pressure unit
- Inflation mode
- Real-time pressure
- Preset pressure
5.2 Select Inflation Mode
Short-press the “O” button to switch between:
- SUV
- Car
- Bicycle
- Basketball
- Free Mode
5.3 Select Pressure Unit
Press and hold the “O” button for 2 seconds to switch units:
- BAR
- PSI
- KPA
5.4 Adjust Pressure
- Press “+” or “–” to set desired pressure
- Press the power button to start inflation
- The pump stops automatically when the preset pressure is reached
5.5 Preset Pressure Ranges
| Mode | Range | Preset |
| SUV | 1.8–3.4 BAR | 2.5 BAR |
| Car | 1.8–3.0 BAR | 2.4 BAR |
| Bicycle | 30–143 PSI | — |
| Basketball | 5–167 PSI | — |
| Free Mode | 30–990 KPA | — |
6. LED Flashlight & Emergency Modes
- Short-press the light button to activate
- Lighting modes cycle in this order:
- Continuous white light
- Flashing light
- SOS signal
- Off
The device automatically powers off after 90 seconds of inactivity.
7. Using the A3 as a Power Bank
- USB-A output: 5V / 2.4A
- USB-C input: 5V / 2A
✅ Can charge devices while the unit itself is charging
❌ Cannot charge devices while jump-starting a vehicle
Devices requiring very low current (below 200 mA) may cause auto-shutoff after 90 seconds.
8. Safety First: Guidelines You Must Follow
For safe use of your jump starter:
- Never connect clamps in reverse
- Do not use on non-12V vehicles (e.g., boats, airplanes)
- Don’t attempt jump-starting while the A3 itself is charging
- Avoid water, high heat, or impact damage
- Store between -10°C to 45°C (14°F–113°F)
9. FAQs
Q1: How long does it take to fully charge a jump starter?
Most portable jump starters, including the GOOLOO A3, take approximately 4–5 hours to fully charge using a 5V/2A USB wall charger. Charging time may vary depending on the remaining battery level and power source.
Q2: What is the difference between a battery charger and a jump starter?
A battery charger slowly recharges a vehicle battery over several hours, while a jump starter provides instant power to start a dead battery in seconds. Jump starters are designed for emergencies, while battery chargers are better for long-term battery maintenance.
If you’re deciding between the two, our comparison article battery charger vs jump starter breaks it down clearly.
Q3: Can I charge my phone or other devices with a jump starter?
Yes. Most portable jump starters also function as power banks and can charge smartphones, tablets, and other USB devices. However, very low-current devices (such as some earbuds or smartwatches) may cause the unit to shut off automatically.
Q4: Is a jump starter better than jumper cables?
A jump starter is often safer and more convenient than traditional jumper cables because it does not require a second vehicle. Modern jump starters include built-in safety protections such as reverse polarity and short-circuit protection, making them ideal for solo drivers.
Q5: Can a jump starter inflate tires as well?
Some jump starters, like the GOOLOO A3, include a built-in air compressor that allows you to inflate car tires, bicycles, and sports equipment. Preset pressure modes and auto shut-off features make inflation easy and accurate.
The GOOLOO A3 Jump Starter with Air Compressor is a reliable all-in-one roadside emergency tool designed for everyday drivers. By following this guide and the safety instructions, you can confidently handle dead batteries, low tires, and emergencies—anytime, anywhere.