1. Introducció
The UTRAI Jstar 5 is a versatile multi-function device designed for automotive emergencies and outdoor activities. It combines a powerful jump starter, an electric air compressor, a mobile power bank, and an emergency LED light. This manual provides essential information for safe and effective operation, maintenance, and troubleshooting.
2. Informació de seguretat
Si us plau, llegiu i enteneu tots els avisos i instruccions de seguretat abans d'utilitzar aquest producte. Si no seguiu aquestes instruccions, podeu patir descàrregues elèctriques, incendis o lesions greus.
- Connecteu sempre el cl intel·ligentamps correctly to the vehicle battery terminals (red to positive, black to negative).
- No toqueu el cl vermell i negreampjunts per evitar curtcircuits.
- Once the engine starts, disconnect the battery clamps de la bateria del cotxe i del motor d'arrencada en 30 segons.
- Avoid using the device in extreme cold or humid conditions (-20℃ to 60℃ is the operating range). Performance may be reduced outside this range.
- Do not use the device if the vehicle battery is severely degraded or damaged.
- If the vehicle battery is completely discharged, use the boost mode as described in the operating instructions.
- For long-term storage, recharge the device every 3 months to prolong battery life.
- Mantingueu el dispositiu lluny dels nens.
- Ensure proper ventilation when using the air compressor; it can generate heat.
3. Contingut del paquet
Verifiqueu que tots els elements siguin presents al vostre paquet:
- UTRAI Jstar 5 Jump Starter and Air Compressor Unit
- Bateria intel·ligent Clamps
- Cable de càrrega USB-C
- DC Car Charger Adapter
- Air Nozzle Adapters (3 pieces)
- Manual d'usuari
- Estoig d'emmagatzematge

4. Característiques del producte
The UTRAI Jstar 5 offers multiple functionalities:
- Arrencador de salts: 5000A peak current, capable of starting all gasoline vehicles and diesel vehicles up to 8L.
- Compressor d'aire: Built-in electric air compressor with a maximum pressure of 150 PSI, suitable for tires, balls, and inflatables. Features automatic stop when preset pressure is reached.
- Banc d'energia mòbil: 27000mAh capacity with USB (5V/2.4A) and QC3.0 fast charging output ports for charging smartphones, tablets, and other electronic devices. Includes a DC output port (12V-16V/10A) for car accessories.
- Llum d'emergència LED: Equipped with a bright LED light offering illumination, warning (strobe), and SOS modes for various emergency situations.
- Proteccions de seguretat: Features 9 types of protection including short circuit, reverse connection, over-discharge, over-current, reverse current, low voltage, alt voltage, temperature, and overcharge protection. PSE certified.
- Pantalla LCD digital: Clear display for battery level, tire pressure, and output status.

5. Configuració
Before first use, fully charge the UTRAI Jstar 5 unit. Connect the provided USB-C charging cable to the device and a suitable power source. The LCD display will indicate the charging status.
6. Instruccions de funcionament
6.1. Arrencada d'un vehicle amb ajuda d'un cable
- Assegureu-vos que l'arrencador de bateria estigui prou carregat.
- Introduïu la bateria intel·ligent clamp plug completely into the jump start port on the UTRAI Jstar 5. The red and green lights on the clamp parpellejarà alternativament.
- Connecteu el cl vermellamp al terminal positiu (+) de la bateria del cotxe i al cl negreamp al terminal negatiu (-).
- Once connected correctly, the green light on the smart clamp will illuminate steadily, and a click sound may be heard.
- Engegueu el motor del vehicle en 60 segons.
- After the engine starts, remove the battery clamps from the car battery and then from the jump starter within 30 seconds.

Video 6.1: Demonstration of the UTRAI Jstar 5 jump starting a car.
6.2. Ús del compressor d'aire
- Remove the air hose from its storage slot on the device.
- Press the 'OK' button to activate the display, then press the 'M' button to cycle through air inflation modes (car, motorcycle, bicycle, ball).
- Use the '+' and '-' buttons to set the desired air pressure. Refer to your vehicle's manual or tire sidewall for recommended pressure.
- Securely connect the air hose to the tire valve. The current tire pressure will be displayed on the LCD.
- Press the 'OK' button to start inflation. The compressor will automatically stop when the preset pressure is reached.
- Disconnect the air hose from the tire valve and store it back in the unit.

6.3. Ús com a bateria externa mòbil
The UTRAI Jstar 5 can charge various electronic devices:
- Connect your device's USB charging cable to one of the USB output ports (5V/2.4A or QC3.0) on the Jstar 5.
- For 12V car accessories, connect the DC car charger adapter to the DC output port (12V-16V/10A) and then to your accessory (e.g., car vacuum, car refrigerator).

6.4. Ús de la llum LED
The integrated LED light has multiple modes for different situations:
- Press the light button (usually indicated by a light bulb icon) on the control panel to cycle through modes: Illumination, Strobe (warning), and SOS.
- The bright light is useful for working in dark engine bays or as a campla llum.
- Strobe and SOS modes are for emergency signaling.

7. Manteniment
- Càrrega: To maintain optimal battery health, fully charge the Jstar 5 every three months, especially during long periods of inactivity.
- Neteja: Netegeu el dispositiu amb un drap sec i suau. No utilitzeu productes químics agressius ni materials abrasius.
- Emmagatzematge: Guardeu el dispositiu en un lloc fresc i sec, allunyat de la llum solar directa i de temperatures extremes. Feu servir l'estoig d'emmagatzematge proporcionat per protegir-lo.
8. Solució De Problemes
Si teniu problemes amb el vostre UTRAI Jstar 5, consulteu els següents problemes i solucions habituals:
| Problema | Causa possible | Solució |
|---|---|---|
| El vehicle no arrenca | Low charge on jump starter, incorrect clamp connection, severely discharged vehicle battery. | Ensure jump starter is fully charged. Recheck clamp connections (red to +, black to -). If vehicle battery is completely flat, use boost mode (refer to full manual for specific instructions). |
| Smart clamp indicator light is red or flashing red/green rapidly | Short circuit, reverse polarity, over-temperature, or other safety protection activated. | Desconnecteu immediatament el clamps. Check for correct polarity. Allow device to cool down if it was recently used. Ensure clamps are not touching each other. |
| El compressor d'aire no s'infla | Air hose not securely connected, incorrect pressure setting, device not powered on. | Ensure air hose is tightly screwed onto the tire valve. Verify the device is powered on and the desired pressure is set. Check battery level. |
| El dispositiu no es carrega | Faulty charging cable/adapter, power source issue. | Try a different USB-C cable and power adapter. Ensure the power source is active. |
9. Especificacions
| Característica | Especificació |
|---|---|
| Número de model | JS 5 |
| Corrent màxima | 5000 Amperes |
| Capacitat de la bateria | 27000 mAh |
| Tipus de bateria | Polímer de liti |
| Voltage | 12 Volts |
| Pressió màxima del compressor d'aire | 150 PSI (1035 kPa) |
| Compatible Vehicle Types | All gasoline engine vehicles, diesel engine vehicles up to 8L |
| Dimensions del producte | 20 x 16 x 8 cm |
| Pes del producte | 2 quilos |
| Temperatura de funcionament | -20 ℃ a 60 ℃ |
10. Garantia i Suport
The UTRAI Jstar 5 comes with a 12-month warranty. If you encounter any issues with the product or have questions, please contact UTRAI customer support directly for assistance. Provide your purchase details and a description of the problem for prompt service.