1. Introduction
The UTRAI 2500A JS1-PRO is a powerful and versatile portable jump starter designed to start 12V vehicles with up to 8.0L gas and 7.0L diesel engines. Beyond its primary function, it serves as a portable power bank with wireless charging capabilities, an emergency LED flashlight, and includes a safety hammer. This manual provides essential information for safe and effective use, maintenance, and troubleshooting.
2. Safety Information
Please read and understand all safety information before using this product. Failure to follow these instructions may result in electric shock, explosion, fire, which may result in serious injury, death, or property damage.
- Always connect the red clamp to the positive (+) terminal and the black clamp to the negative (-) terminal of the vehicle battery.
- Do not touch the red and black clamps together to prevent short circuits.
- Do not jump start a frozen battery.
- Ensure the jump starter is fully charged before use for optimal performance.
- Keep out of reach of children.
- Do not expose the product to rain or extreme moisture.
- Do not disassemble the unit. Refer to qualified service personnel for repairs.
- Use the product in a well-ventilated area.
- If the battery clamps are connected incorrectly, the smart clamp will alert you with flashing red and green lights. Correct the connection before proceeding.
3. Product Overview
3.1 Packing List
The package includes the following items:
- UTRAI JS1-PRO Jump Starter
- Smart Battery Clamps (Red and Black)
- USB-C Charging Cable
- User Manual
- Storage Case
Figure 3.1: Contents of the UTRAI JS1-PRO package.
3.2 Product Layout
Figure 3.2: UTRAI JS1-PRO Jump Starter Layout.
| No. | Function |
|---|---|
| 1 | LED Flashlight |
| 2 | Display Screen |
| 3 | Power Button |
| 4 | Wireless Charging Pad |
| 5 | Compass |
| 6 | Safety Hammer |
| 7 | EC5 Output Port |
| 8 | USB-C Input Port |
| 9 | USB Output Port 1 |
| 10 | USB Output Port 2 |
| 11 | LED Indicator |
| 12 | Battery Clamps Plug |
| 13 | Red Battery Clamp |
| 14 | Black Battery Clamp |
4. Setup
4.1 Initial Charging
Before first use, fully charge the UTRAI JS1-PRO. Connect the provided USB-C charging cable to the USB-C Input Port (8) on the jump starter and to a suitable USB power adapter (not included). The display screen (2) will show the charging progress. A full charge is indicated by 100% on the screen.
- It is recommended to fully charge the device every 3-6 months to maintain battery health, even if not in use.
5. Operating Instructions
5.1 Jump Starting a Vehicle
- Ensure the jump starter has sufficient charge (at least 50% recommended).
- Open the vehicle's hood and locate the battery.
- Insert the smart battery clamps plug (12) into the EC5 Output Port (7) on the jump starter. The red and green lights on the smart clamp will flash alternately, indicating it's ready.
- Connect the red clamp (13) to the positive (+) terminal of the vehicle battery.
- Connect the black clamp (14) to the negative (-) terminal of the vehicle battery.
- Once connected correctly, the smart clamp's indicator light will turn solid green. If it flashes red and green, check your connections.
- Start your vehicle.
- Once the vehicle starts, immediately remove the smart clamps from the vehicle battery, then disconnect the clamps from the jump starter.
Video 5.1: Demonstration of jump starting a vehicle, charging devices, and using the flashlight.
Figure 5.1: Easy 3-step jump start process.
5.2 Charging Mobile Devices (Power Bank Function)
The JS1-PRO can charge various electronic devices using its USB output ports or wireless charging pad.
- USB Charging: Connect your device's charging cable to either USB Output Port 1 (9) or USB Output Port 2 (10). The jump starter provides fast charging capabilities.
- Wireless Charging: Place your Qi-compatible device on the Wireless Charging Pad (4). Ensure the device is centered for optimal charging. The jump starter supports 10W wireless charging.
Figure 5.2: Charging multiple devices on the go.
Figure 5.3: 10W Wireless Charging in action.
5.3 Using the LED Flashlight
The built-in LED Flashlight (1) offers multiple modes for various situations:
- Press the Power Button (3) once to turn on the flashlight (Normal mode).
- Press again to cycle through modes: SOS, Strobe, Warning Light.
- Press and hold to turn off the flashlight.
Figure 5.4: 4-Mode Emergency Flashlight for different occasions.
5.4 Using the Safety Hammer
The Safety Hammer (6) is integrated into the device for emergency situations, such as breaking a car window to escape.
Figure 5.5: Using the safety hammer in an emergency.
6. Maintenance
- Store the jump starter in a cool, dry place away from direct sunlight and extreme temperatures.
- Recharge the unit every 3-6 months to maintain optimal battery life and readiness.
- Clean the exterior with a soft, damp cloth. Do not use harsh chemicals or abrasive materials.
- Keep the ports free from dust and debris.
- Avoid dropping or subjecting the device to strong impacts.
7. Troubleshooting
If you encounter issues with your UTRAI JS1-PRO, please refer to the following common problems and solutions:
- Device not turning on: Ensure the device is charged. Press and hold the power button for a few seconds.
- Vehicle not starting:
- Check if the smart clamps are correctly connected to the battery terminals (red to positive, black to negative). The smart clamp indicator should be solid green.
- Ensure the jump starter has sufficient charge.
- The vehicle battery might be severely discharged or damaged.
- The vehicle engine size might exceed the jump starter's capacity.
- Smart clamp indicator flashing red/green: This indicates an incorrect connection or a safety warning. Recheck the clamp connections to the battery terminals.
- Charging slow or not working:
- Ensure the charging cable is securely connected.
- For wireless charging, ensure your device is Qi-compatible and properly aligned on the charging pad.
- Try a different charging cable or power adapter.
For more detailed troubleshooting guides and solutions, please visit the official UTRAI troubleshooting page: https://www.utrai.com/pages/troubleshooting
8. Specifications
Figure 8.1: UTRAI JS1-PRO Product Parameters and Dimensions.
| Feature | Specification |
|---|---|
| Model | JS-1 Pro |
| Car Jump Start Output | 12V |
| Battery Capacity | 59.2Wh (12000-18000mAh) |
| USB-C Input | 5V/2A, 9V/2A |
| USB1 Output | 5V/3A, 9V/2A, 12V/1.5A |
| USB2 Output | 5V/2.4A |
| Wireless Charging | 10W |
| Unit Size (L*W*H) | 179mm * 90mm * 47mm |
| Peak Current | 2500A |
| Starting Current | 1000A |
| Gas Engine Rating | Up to 8.0L |
| Diesel Engine Rating | Up to 7.0L |
| Operating Temperature | -20°C ~ +60°C |
| Item Weight | Approx. 0.65KG |
| Certifications | CE, FCC, ROHS, PSE |
| Number of Built-in Batteries | 4 |
| Battery Cycle Life | About 300 times |
| Fast Charge | Two-Way Fast Charge |
9. User Tips
- For best results, ensure the jump starter is fully charged before heading out on a trip.
- In cold weather, keep the jump starter in a warmer environment (e.g., inside the car cabin) until ready to use, as extreme cold can affect battery performance.
- Always double-check the polarity when connecting the clamps to avoid damage to the jump starter or vehicle.
- Utilize the built-in flashlight for visibility when working in low-light conditions or at night.
- The compass can be a useful tool for navigation during outdoor activities or emergencies.
10. Warranty & Support
The UTRAI JS1-PRO Jump Starter comes with a 1-year warranty. For warranty claims or technical support, please contact the UTRAI Official Store directly. Keep your purchase receipt as proof of purchase.
For further assistance, you may also refer to the official UTRAI website or contact their customer service.
