1. Introduction
This manual provides essential instructions for the safe and effective operation of your VTOMAN V10 3500A and V3 Pro 2000A Portable Jump Starters. Please read this manual thoroughly before use and retain it for future reference.
2. Safety Information
Always prioritize safety when operating the jump starter. The VTOMAN V10 and V3 Pro models incorporate 10 advanced safety technologies to prevent common errors and ensure user protection. These include:
- Over-Charge Protection
- Over-Current Protection
- Short-Circuit Protection
- Reverse-Polarity Protection
- Low-Temperature Protection
- High-Temperature Protection
- Spark-Proof Technology
- Over-Voltage Protection
- Over-Load Protection
- Reverse-Charge Protection
The smart jumper cables are designed with error-free indicators to guide correct connection and prevent damage from improper usage.

Figure 1: VTOMAN V10 Jump Starter highlighting its 10 advanced safety technologies.
3. Product Overview
The VTOMAN V10 and V3 Pro are portable lithium jump starters designed to start vehicles with dead batteries. They also function as power banks and include integrated flashlights.
VTOMAN V10 Jump Starter
- Peak Current: 3500A
- Engine Compatibility: Up to 9.5L gasoline engines, up to 7.5L diesel engines.
- Starts per Charge: Up to 60 times.
- Operating Temperature: -4°F to 140°F (-20°C to 60°C).
- Additional Features: Power bank with multiple output ports (USB1 18W, USB2, Type-C IN/OUT, DC), flashlight with various modes.
VTOMAN V3 Pro Jump Starter
- Peak Current: 2000A
- Engine Compatibility: Up to 6L gasoline engines, up to 4L diesel engines.
- Starts per Charge: Up to 30 times.
- Operating Temperature: -4°F to 140°F (-20°C to 60°C).
- Additional Features: Power bank with USB (5V/2.1A) and Type-C (5V/2A) ports, built-in compass, flashlight.

Figure 2: VTOMAN V10 and V3 Pro Portable Jump Starters with included smart clamps.
4. Setup
4.1 Charging the Jump Starter
Before initial use, fully charge your VTOMAN jump starter. Use the provided USB cable and a compatible wall adapter (not included) to charge the unit. The V3 Pro can be fully charged in approximately 2.6 hours and maintains a charge for up to 24 months in standby.

Figure 3: VTOMAN V3 Pro Jump Starter connected to a wall charger for recharging.
5. Operating Instructions: Jump Starting a Vehicle
- Connect Smart Clamps: Open the rubber cap on the jump starter and firmly insert the smart clamp connector.
- Attach to Battery: Connect the red (positive) clamp to the positive (+) terminal of the vehicle battery and the black (negative) clamp to the negative (-) terminal.
- Check Indicator: The smart clamp unit will display an indicator light. A blinking green light indicates a low battery and correct connection. A red light indicates reverse polarity; immediately disconnect and re-attach correctly.
- Use BOOST Function (if needed): If the vehicle battery is completely dead and the green light is blinking, press the "BOOST" button on the smart clamp unit. This provides extra power for starting.
- Start Vehicle: Within 30 seconds of connecting or pressing BOOST, attempt to start your vehicle.
- Disconnect: Once the vehicle starts, immediately disconnect the smart clamps from the vehicle battery, then from the jump starter.

Figure 4: VTOMAN V10 Jump Starter properly connected to a vehicle battery for jump-starting.

Figure 5: The 'BOOST' button on the smart clamp, used for starting severely discharged batteries.
6. Charging Other Devices (Power Bank Function)
Your VTOMAN jump starter can also serve as a portable power bank for various electronic devices.
- Connect Device: Use a compatible USB cable to connect your phone, tablet, or other USB-powered device to the appropriate output port (USB-A, Type-C, or DC).
- Charging: The jump starter will automatically begin charging your device.

Figure 6: VTOMAN V10 Jump Starter providing power to multiple electronic devices via its various output ports.
7. Flashlight Functionality
Both VTOMAN models include a built-in flashlight for convenience and emergencies.
- Activate: Long-press the power button on the jump starter to turn on the flashlight.
- Change Modes: Short-press the power button to cycle through different modes: steady light, SOS signal, and strobe light.
- Turn Off: Long-press the power button again to turn off the flashlight.
8. Maintenance
- Recharge Regularly: To maintain optimal performance and extend battery life, recharge the jump starter every 3-6 months, even if not in use.
- Store Properly: Store the unit in its protective case in a cool, dry place away from direct sunlight and extreme temperatures.
- Clean Contacts: Ensure the battery clamps and jump starter ports are clean and free of debris before each use.
9. Troubleshooting
- Unit Not Turning On: Ensure the jump starter is sufficiently charged.
- Vehicle Not Starting: Check the smart clamp indicator for correct polarity. If the battery is completely dead, use the BOOST function. Ensure clamps have a good connection to battery terminals.
- Device Not Charging: Verify the device is compatible with the output port and the cable is functioning correctly.
10. Specifications
VTOMAN V10 Jump Starter
- Peak Current: 3500A
- Engine Compatibility: Up to 9.5L Gas, 7.5L Diesel
- Operating Temperature: -4°F to 140°F (-20°C to 60°C)
VTOMAN V3 Pro Jump Starter
- Peak Current: 2000A
- Engine Compatibility: Up to 6L Gas, 4L Diesel
- Operating Temperature: -4°F to 140°F (-20°C to 60°C)
- Dimensions: 5.9 x 3.2 x 1.2 inches
- Weight: Less than 0.7 lbs

Figure 7: The compact and portable design of the VTOMAN V3 Pro Jump Starter.
11. Warranty and Support
For warranty information, technical support, or any inquiries regarding your VTOMAN jump starter, please refer to the official VTOMAN website or contact their customer service directly. Keep your purchase receipt for warranty claims.