Introducció
The UTRAI JS-9 is a versatile portable device designed to provide emergency jump-starting for 12V vehicles, inflate tires with its built-in air compressor, and serve as a power bank for electronic devices. It features advanced safety protections and a multi-function LED light for various situations.
Informació de seguretat

This image illustrates the various safety protection features of the UTRAI JS-9, including safeguards against short circuit, overheating, low temperature, surge voltage, overload, over-voltage, over-discharge, and over-charge, ensuring safe operation for both the user and the vehicle.
Llegiu tots els avisos i instruccions de seguretat abans d'utilitzar aquest producte. Si no seguiu els avisos i les instruccions, podeu patir descàrregues elèctriques, incendis i/o lesions greus.
- The device incorporates advanced safety protection technologies including over-charge, over-current, short-circuit, reverse-polarity, low-temp, high-temp, over-voltage, protecció contra sobrecàrrega, a prova d'espurnes i de càrrega inversa.
- No exposeu el dispositiu a la pluja o a condicions humides.
- No feu servir el dispositiu si s'ha caigut o s'ha fet malbé.
- Mantenir fora de l'abast dels nens.
- Assegureu-vos una ventilació adequada durant l'ús.
- No desmunteu la unitat. Per a les reparacions, consulteu personal de servei qualificat.
Contingut del paquet

This image shows the UTRAI JS-9 jump starter unit along with its included accessories: smart jumper cables, an air pump hose, three gas nozzles, and a USB-C charging cable, all neatly packed in a portable EVA carrying case.
- 1 x UTRAI JS-9 Jump Starter with Air Compressor
- 1 x cables de pont intel·ligents
- 1 x Air Pump Hose
- 3 x Gas Nozzles (various adapters for inflatables)
- 1 x cable de càrrega USB-C
- 1 x Portable EVA Carrying Case
- 1 x Manual d'usuari (aquest document)
Característiques del producte
Powerful Jump Starter

The UTRAI JS-9 delivers a powerful 4000A peak current, capable of jump-starting all 12V vehicles, including cars (up to 8.5L gas or 6.5L diesel engines), motorcycles, ATVs, UTVs, lawn mowers, snowmobiles, trucks, boats, RVs, and tractors. It can perform up to 40 jump starts on a single full charge and operates effectively in extreme temperatures from -20°C to 60°C (-4°F to 140°F).
150PSI Cordless Air Compressor

Equipped with a 150 PSI air compressor, the JS-9 can inflate an average car tire to 20 PSI in approximately 3 minutes. It features an intelligent preset function and auto shut-off, allowing users to set desired pressure values (PSI, BAR, KPA) for various inflatables such as car tires, bike tires, motorcycle tires, balls, mattresses, and swimming rings.
Multi-functional Fast Charge Power Bank

With a 15000mAh cell capacity, the JS-9 includes a USB output port (5V/3A, 9V/2A, 12V/1.5A) and a Quick Charge 3.0 USB-C port (5V/2A, 9V/2A). This allows for rapid charging of mobile devices such as cell phones, tablets, earphones, drones, smartwatches, and other portable electronics.
Multi-Function LED Lights

The integrated LED flashlight offers three modes: Flashlight, Strobe, and SOS. These modes are useful for various emergencies, outdoor activities, camping, and general illumination at night.
Large Digital Display & IP67 Waterproof

The device features a large LED display that clearly shows working status, input/output, air pressure, and battery level. Its rugged ABS housing provides IP67 waterproof protection, making it resistant to dust and water ingress, suitable for various environments.
Configuració
Charging the UTRAI JS-9
Before first use, fully charge the UTRAI JS-9. Use the provided USB-C charging cable to connect the device to a compatible USB power adapter (not included). The digital display will indicate the charging status and battery level. A full charge ensures optimal performance for jump-starting and air compression.
Comprovació del nivell de la bateria
Press any button on the device to activate the display and check the current battery level. Ensure sufficient charge before attempting to jump start a vehicle or inflate tires.
Instruccions de funcionament
1. Arrencada d'un vehicle amb ajuda d'un cable
- Ensure the UTRAI JS-9 is sufficiently charged.
- Connect the smart jumper cables to the jump starter port on the JS-9.
- Adjunta el vermell clamp al vehicle terminal positiu (+) de la bateria.
- Adjunta el negre clamp al vehicle negative (-) battery terminal.
- Assegureu-vos que el clamps are securely connected and the smart cable indicator light is green (if applicable).
- Engegueu el motor del vehicle.
- Once the engine starts, immediately remove the jumper cables from the vehicle battery, first the black clamp, aleshores el cl vermellamp, and then disconnect from the JS-9.
2. Ús del compressor d'aire
- Connect the air pump hose to the air outlet port on the JS-9.
- Attach the other end of the hose to the tire valve or appropriate inflatable. Use the correct gas nozzle if needed.
- Turn on the air compressor function. The digital display will show the current pressure.
- Use the control buttons to set the desired pressure (PSI, BAR, or KPA).
- El compressor s'aturarà automàticament un cop s'assoleixi la pressió preestablerta.
- Disconnect the hose from the tire/inflatable and the JS-9.
3. Ús com a bateria externa
- Connect your electronic device to the USB-A or USB-C output port on the JS-9 using a compatible charging cable.
- El dispositiu començarà a carregar-se automàticament.
- Monitor the battery level on the JS-9 display.
4. Ús de la llanterna LED
- Press the flashlight button once for constant illumination.
- Press again for Strobe mode.
- Premeu una tercera vegada per al mode SOS.
- Premeu una quarta vegada per apagar la llum.
Manteniment
- Càrrega: Recharge the device every 3-6 months, even if not used, to maintain battery health. Store it with at least 50% charge.
- Neteja: Netegeu el dispositiu amb un drap suau i sec. No utilitzeu productes químics agressius ni netejadors abrasius.
- Emmagatzematge: Store the UTRAI JS-9 in a cool, dry place, away from direct sunlight and extreme temperatures. Use the provided EVA carrying case for protection.
Resolució de problemes
| Problema | Causa possible | Solució |
|---|---|---|
| El dispositiu no s’encén. | Bateria baixa o sense càrrega. | Carregueu el dispositiu completament. |
| El vehicle no arrenca amb ajuda d'un cable. | cl. incorrectaamp connection; battery too deeply discharged; vehicle engine too large. | Assegureu-vos que clamps are connected correctly (red to +, black to -); ensure JS-9 is fully charged; verify vehicle engine size is within specifications (8.5L gas / 6.5L diesel). |
| El compressor d'aire no s'infla. | Hose not securely connected; preset pressure not set; low battery. | Check hose connections; set desired pressure; charge the device. |
| Smart clamp indicator light is red. | Connexió de polaritat inversa o curtcircuit. | Disconnect immediately and re-connect clamps correctament. |
Especificacions
| Característica | Detall |
|---|---|
| Model | Utrai JS-9 |
| Corrent màxima | 4000A |
| Capacitat de la bateria | 15000 mAh |
| Inici Voltage | 12 V |
| Valoració del motor de gas | Fins a 8.5 L |
| Valoració del motor dièsel | Fins a 6.5 L |
| Pressió del compressor d'aire | 150 PSI |
| Sortida USB | 5V/3A, 9V/2A, 12V/1.5A |
| Entrada/sortida USB-C | 5V/2A, 9V/2A (Càrrega ràpida 3.0) |
| Temperatura de funcionament | -20 °C a 60 °C (-4 °F a 140 °F) |
| Classificació impermeable | IP67 |
| Dimensions (L*W*T) | 8.07''x6.1''x2.95'' (approx. 20.5 x 15.5 x 7.5 cm) |
| Pes | Approx. 2.69lb (1.22 kg) |
Garantia i Suport
UTRAI ofereix una 2-YEAR FREE Warranty for the JS-9 jump box pack. This includes Lifetime Technical Support and 7/24 Customer Service. For any inquiries or support, please contact UTRAI customer service.
Note: Warranty details are subject to the terms and conditions provided by the manufacturer. Please retain your proof of purchase.