Utrai Jstar 4 Multifunction Jump Starter User Manual

1. Product Overview

The Utrai Jstar 4 is a powerful and versatile multifunction jump starter designed for emergency vehicle starting and portable power needs. With a peak current of 2500A, it can jump start 12V vehicles including cars, sedans, boats, and motorbikes, supporting up to 8.0L gasoline and 7.0L diesel engines. Beyond jump starting, it features 10W wireless charging, multiple USB outputs for charging electronic devices, a DC output, an LED light with various modes, a compass, and a safety hammer.

Package Contents

• Utrai Jstar 4 Jump Starter Unit
• Smart Jumper Clamps
• USB Charging Cable
• User Manual
• Carrying Case

Key Features

• Solid and durable case
• High capacity battery (24000 mAh / 59.2Wh)
• Built-in protective measures for safe operation
• Integrated Safety Hammer for emergencies
• Digital LCD Screen for battery status and output/input values
• Built-in Compass
• Type-C Input/Output port
• Two USB Output ports (QC3.0 and 5V 2.1A)
• DC Output port (12V-16V / 10A)
• LED Lights with Normal, SOS, and Strobe modes
• 10W Wireless Charging capability

2. Safety Information

Please read all safety warnings and instructions before using this product. Failure to follow the warnings and instructions may result in electric shock, fire, and/or serious injury.

• Do not expose the jump starter to rain or wet conditions.
• Do not use the jump starter if it is damaged or modified.
• Do not disassemble the jump starter. Refer all servicing to qualified personnel.
• Keep the jump starter away from children.
• Ensure proper ventilation when operating.
• Avoid short-circuiting the smart clamps.
• Do not jump start a frozen battery.
• Always connect the clamps to the correct terminals (red to positive, black to negative).
• The smart clamps feature built-in protections against battery voltage detection, high voltage, reverse charge, and short circuit. If an error occurs, unplug and plug the clamps again; no further action is needed.

3. Setup and Charging

Charging the Jump Starter

Before first use, fully charge the Utrai Jstar 4. It is recommended to recharge the device every 3-6 months to maintain battery health, even if not in use.

1. Connect the provided USB charging cable to the Type-C Input port (5V 2A) on the jump starter.
2. Connect the other end of the USB cable to a suitable USB power adapter (not included) or a powered USB port.
3. The LCD screen will display the charging status and battery percentage.
4. Once fully charged, disconnect the charging cable.

4. Operating Instructions

Jump Starting a Vehicle

The Utrai Jstar 4 is suitable for 12V vehicles with up to 8.0L gasoline and 7.0L diesel engines, including cars, sedans, boats, and motorbikes.

1. Insert the plug: Connect the smart jumper cable plug firmly into the jump starter's output port.
2. Connect the clamps: Attach the red (+) clamp to the positive terminal of the vehicle's battery and the black (-) clamp to the negative terminal. Ensure a secure connection.
3. Start your car: Turn on the jump starter (if it doesn't activate automatically) and then start your vehicle's engine.
4. Remove clamps: Once the vehicle starts, immediately remove the smart clamps from the car battery, then disconnect the plug from the jump starter.

Using the LED Light

The built-in LED light has three modes:

• Normal: For general illumination.
• SOS: Emits an SOS signal for emergency situations.
• Strobe: Flashing light for signaling or attracting attention.

Press the dedicated light button to cycle through the modes.

Charging Electronic Devices

The Jstar 4 can charge various electronic devices via its USB outputs and wireless charging pad.

• USB1 Output: QC3.0 (5V/3A, 9V/2A, 12V/1.5A) for fast charging compatible devices.
• USB2 Output: 5V 2.1A for standard charging.
• Wireless Charging: 10W output for Qi-compatible devices. Simply place your device on the designated wireless charging area.
• DC Output: 12V-16V / 10A for powering compatible 12V accessories.

Using the Compass and Safety Hammer

• Compass: The integrated compass can be used for navigation in emergency situations.
• Safety Hammer: The safety hammer is located on the device and can be used to break car windows in case of an emergency.

5. Maintenance

• Cleaning: Wipe the device with a dry, soft cloth. Do not use harsh chemicals or abrasive materials.
• Storage: Store the jump starter in a cool, dry place away from direct sunlight and extreme temperatures.
• Recharging: For optimal battery life, fully charge the unit every 3-6 months, even if it has not been used.
• Battery Care: Do not overcharge or completely discharge the battery frequently.

6. Troubleshooting

• Device not turning on: Ensure the battery is charged. If not, charge the device fully.
• Vehicle not starting:
  • Check that the smart clamps are securely connected to the correct battery terminals.
  • Ensure the jump starter has sufficient charge.
  • If an error message appears on the smart clamp display, unplug and re-plug the clamps.
  • The vehicle battery might be severely damaged or completely dead, requiring professional assistance.
• Electronic devices not charging:
  • Ensure the jump starter is powered on.
  • Check the charging cables and connections.
  • Verify that your device is compatible with wireless charging if using that feature.

7. Specifications

8. Warranty and Support

The Utrai Jstar 4 Jump Starter comes with a 12-month warranty from the date of purchase. This warranty covers manufacturing defects and workmanship under normal use. It does not cover damage caused by misuse, accidents, unauthorized modifications, or improper maintenance.

For technical support, warranty claims, or any product-related inquiries, please contact the manufacturer or seller directly:

• WhatsApp/WeChat: +86 18934733873
• Email: wsc1183562764@outlook.com

9. User Tips

• Always ensure the jump starter is adequately charged before storing it in your vehicle for emergencies.
• Keep the smart clamps clean and free from debris to ensure good electrical contact.
• In cold weather, battery performance can decrease. Keep the jump starter in a warmer environment if possible before use.
• After jump starting, allow your vehicle's engine to run for a few minutes to recharge its own battery before turning it off.

10. Frequently Asked Questions (FAQ)

Q: What is your guarantee for quality?

A: We offer a 12-month warranty and take responsibility for our product quality.

Q: How often should I charge the jump starter?

A: It is recommended to fully charge the unit every 3-6 months to maintain battery health, even if it has not been used.

Q: What should I do if the smart clamps show an error?

A: If an error occurs on the smart clamp display, simply unplug the clamps from the jump starter and plug them back in. No further action is typically needed.

Q: Can I use the jump starter to charge my phone while jump starting a car?

A: While the device has multiple functions, it is best practice to focus on one primary function at a time, especially during critical operations like jump starting, to ensure maximum power delivery and safety.