Introduction
Thank you for choosing the UTRAI JS-5 Car Jump Starter with Air Compressor. This device is designed to provide reliable emergency vehicle starting, tire inflation, and portable power. Please read this manual thoroughly before use to ensure safe and optimal performance. Keep this manual for future reference.

The UTRAI JS-5 Car Jump Starter and Air Compressor, a versatile device for roadside emergencies.
Safety Information
Always observe the following safety precautions to prevent injury or damage to the device and vehicle:
- Do not allow the red and black clamps to touch each other.
- Do not jump-start a vehicle if the battery voltage is below 12V.
- Ensure proper polarity connection: red clamp to positive (+), black clamp to negative (-).
- Remove the jump starter from the vehicle battery within 30 seconds after starting.
- Do not expose the device to extreme temperatures or moisture.
- Keep out of reach of children.
- Do not disassemble the unit.
Package Contents
The UTRAI JS-5 package includes the following items:
- UTRAI JS-5 Portable Car Jump Starter with Air Compressor
- Smart Battery Clamps
- USB Charging Cable
- Cigarette Lighter Adapter
- 3 x Inflatable Pump Nozzles
- Convenient Carrying Bag
- User Manual

All items included in the UTRAI JS-5 product package.
Product Overview
The UTRAI JS-5 combines multiple essential functions into one compact device:
- Jump Starter: 6000A peak current for 12V vehicles (up to 8.0L Diesel or all Gasoline engines).
- Air Compressor: 150PSI maximum pressure with 45 L/min airflow for tires, balls, and inflatables.
- LED Flashlight: 1600 lumens with Normal, Strobe, and SOS modes.
- Power Bank: 27000mAh capacity with USB (5V/2.4A), DC (12V-16V/10A), and Type-C (PD18W) outputs.
- LCD Display: Clearly shows power level and tire pressure.

The UTRAI JS-5 offers 6-in-1 multifunctionality including jump starting, air compression, and LED lighting.

The large digital LED screen provides clear readings of pressure and battery level.
Setup
Initial Charging
Before first use, fully charge the UTRAI JS-5. Connect the USB charging cable to the Type-C input port on the device and to a suitable USB power adapter (not included). The LCD screen will indicate the charging status. A full charge ensures maximum performance and extends battery life.
Operating Instructions
1. Jump Starting a Vehicle
Follow these steps to safely jump-start your vehicle:
- Step 1: Insert the smart battery clamp plug completely into the jump starter's port. The red and green lights on the clamp will flash alternately.
- Step 2: Connect the red clamp to the positive (+) terminal of the car battery and the black clamp to the negative (-) terminal. The green indicator on the clamp will turn solid green, and the clamp will emit a click sound, indicating a correct connection.
- Step 3: Start the vehicle within 60 seconds.
- Step 4: Once the vehicle is started, remove the battery clamps from the car battery and the jump starter within 30 seconds.

The UTRAI JS-5 connected to a car battery, ready for jump starting.
Video demonstrating the step-by-step process of using the UTRAI JS-5 to jump-start a vehicle and inflate a tire.
2. Using the Air Compressor
The integrated air compressor can inflate tires and other items:
- Step 1: Connect the air hose to the tire valve.
- Step 2: Power on the device. Use the 'M' button to select the desired unit (PSI, BAR, KPA) and the '+' / '-' buttons to set the target pressure.
- Step 3: Press and hold the 'OK' button to start inflation. The compressor will automatically stop once the preset pressure is reached.
- Step 4: Disconnect the air hose.

The UTRAI JS-5 features a cordless tire inflator with a preset pressure function for easy and accurate inflation.
3. Using the LED Light
The device includes a powerful LED flashlight with three modes:
- Normal Mode: Provides steady illumination.
- Strobe Mode: Flashing light for signaling.
- SOS Mode: International distress signal.
Press the light button to cycle through the modes.

The UTRAI JS-5 offers three LED light modes for various situations: Normal, Strobe, and SOS.
4. Using as a Power Bank
The 27000mAh battery can charge your electronic devices:
- Connect your device to the USB output port (5V/2.4A) for standard charging.
- Use the Type-C input/output port for PD18W fast charging compatible devices.
- The DC output (12V-16V/10A) can power 12V automotive accessories using the included cigarette lighter adapter.

The UTRAI JS-5 can quickly charge phones, tablets, and other electronic devices.
Maintenance
To ensure the longevity and optimal performance of your UTRAI JS-5:
- Recharge the device every 3 months, even if not in use, to maintain battery health.
- Store the device in a cool, dry place away from direct sunlight and corrosive materials.
- Clean the exterior with a soft, damp cloth. Do not use harsh chemicals.
- Inspect the clamps and cables for any damage before each use.
Troubleshooting
If you encounter issues with your UTRAI JS-5, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Vehicle does not start | Incorrect clamp connection; Jump starter battery low; Vehicle battery severely discharged. | Check clamp polarity; Recharge jump starter; Consult a mechanic for severely discharged batteries. |
| Air compressor not inflating | Hose not securely connected; Target pressure not set; Device battery low. | Ensure hose is tightly screwed on; Set desired pressure using '+' / '-' buttons; Recharge jump starter. |
| LED light not working | Device battery low; Light button not pressed correctly. | Recharge jump starter; Press the light button firmly to cycle modes. |
| Device not charging external devices | Device battery low; Incorrect cable/port used; External device not compatible. | Recharge jump starter; Ensure correct USB/Type-C cable and port are used; Check device compatibility. |
If the problem persists, please contact UTRAI customer support.
Specifications
| Feature | Specification |
|---|---|
| Model Number | UTRAI JS-5 |
| Peak Current | 6000 Amperes |
| Battery Capacity | 27000 mAh |
| Battery Cell Composition | Lithium Polymer |
| Voltage | 12 Volts |
| Air Compressor Pressure | Max 150 PSI |
| USB Output | 5V/2.4A |
| DC Output | 12V-16V/10A |
| Type-C Input/Output | PD18W (5V/3A, 9V/2A) |
| LED Light Output | 1600 Lumens (3 modes) |
| Operating Temperature | -20°C to 60°C |
| Waterproof Rating | IP67 |
| Product Weight | 1 kg |
| Package Dimensions | 27.6 x 22.9 x 16.7 cm |
Warranty and Support
UTRAI is committed to providing high-quality products and excellent customer service.
- Manufacturer's Warranty: This product comes with a 2-year manufacturer's warranty.
- Money-Back Guarantee: Enjoy a 30-day money-back guarantee.
- Customer Support: Our friendly and reliable customer service team is available 24/7 to assist you with any inquiries or issues.
For support, please refer to the contact information provided with your purchase or visit the official UTRAI website.





