Introduction
Thank you for choosing the JUSTFOG Q16 PRO PLUS Electronic Cigarette Kit. This comprehensive kit is designed for both new and experienced vapers, offering an enhanced 3.0ml tank capacity, a powerful 1500mAh battery, and convenient USB-C charging. This manual provides detailed instructions on how to set up, operate, and maintain your device to ensure optimal performance and safety. Please read this manual carefully before using the product.
Package Contents
Upon unboxing, please verify that all the following components are included:
- 1 x JUSTFOG Q16 PRO PLUS Battery (1500mAh)
- 1 x JUSTFOG Q16 PRO PLUS Clearomizer (3.0ml)
- 1 x 1.6 Ohm Coil (pre-installed)
- 1 x USB-C Charging Cable
- 1 x User Manual (this document)

Image: The complete JUSTFOG Q16 PRO PLUS kit, showcasing the battery and clearomizer assembly in gold color.
Setup Guide
1. Coil Installation (Resistance)
The Q16 PRO PLUS comes with a 1.6 Ohm coil pre-installed. If you need to replace it or install a new one:
- Unscrew the bottom part of the clearomizer from the tank.
- Carefully unscrew the old coil from the base.
- Screw in the new 1.6 Ohm coil firmly into the base.
- Reattach the bottom part with the new coil to the clearomizer tank, ensuring it is securely fastened.

Image: Visual guide demonstrating the steps to unscrew the clearomizer base, remove the old coil, and install a new one.
2. E-liquid Filling
The Q16 PRO PLUS features a convenient top-fill system:
- Rotate the top cap of the clearomizer until the filling port is exposed.
- Insert the nozzle of your e-liquid bottle into the filling port and gently squeeze to fill the 3.0ml tank. Avoid overfilling the central airflow tube.
- Rotate the top cap back to close the filling port securely.
- After filling, allow the device to stand upright for at least 5 minutes to ensure the coil is fully saturated with e-liquid. This prevents dry hits and extends coil life.

Image: Visual guide showing how to rotate the top cap to expose the filling port, fill with e-liquid, and then close the port, followed by a 5-minute waiting period for coil saturation.
Operating Instructions
1. Power On/Off
To turn the device on or off, press the power button (usually the main firing button) 5 times rapidly within 2 seconds. The LED indicator will flash to confirm the action.
2. Adjusting Voltage (Power Levels)
The Q16 PRO PLUS offers 4 adjustable voltage levels, indicated by an intelligent LED system:
- Press the voltage adjustment button (smaller button below the firing button) to cycle through the power levels.
- Each press will change the voltage and the LED color:
- White LED: Lowest power level
- Blue LED: Medium-low power level
- Green LED: Medium-high power level
- Red LED: Highest power level
- Select the power level that best suits your vaping preference.
3. Airflow Adjustment
The airflow can be adjusted at the base of the clearomizer to customize your vaping experience:
- Rotate the airflow control ring located at the bottom of the clearomizer.
- Adjust it to your desired setting:
- A tighter airflow provides a Mouth-to-Lung (MTL) draw, similar to a traditional cigarette.
- A more open airflow provides a looser, more airy draw.
Maintenance
1. Coil Replacement
Coils are consumable parts and need to be replaced regularly, typically every 1-3 weeks depending on usage and e-liquid type. Follow the "Coil Installation" steps in the Setup Guide. Replace the coil when you notice a burnt taste, reduced vapor production, or a change in flavor.
2. Cleaning the Clearomizer
To maintain optimal performance and flavor, clean your clearomizer regularly:
- Disassemble the clearomizer (remove coil, drip tip, and separate glass tank from base).
- Rinse all parts (except the coil) under warm running water.
- For a deeper clean, use a mild dish soap and rinse thoroughly.
- Ensure all parts are completely dry before reassembling. Air drying is recommended.
3. Charging the Battery
The Q16 PRO PLUS features a 1500mAh battery with USB-C charging:
- Connect the USB-C cable to the charging port on the device.
- Connect the other end of the cable to a suitable USB power source (e.g., computer USB port, wall adapter).
- The LED indicator will show charging status (e.g., solid light while charging, off when fully charged).
- Do not leave the device charging unattended for extended periods.

Image: A close-up view of the JUSTFOG Q16 PRO PLUS device, highlighting the USB-C charging port located on the side of the battery.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No vapor/Device not firing |
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| Burnt taste |
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| Leaking |
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| Weak vapor/flavor |
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Specifications
| Brand | Justfog |
| Model Name | Q16 PRO PLUS |
| Battery Capacity | 1500mAh (Integrated Lithium-ion) |
| Clearomizer Capacity | 3.0 ml |
| Coil Resistance | 1.6 Ohm (compatible with Justfog 14 series coils) |
| Charging Port | USB-C |
| Voltage Levels | 4 levels (indicated by LED: White, Blue, Green, Red) |
| Dimensions (L x W x H) | 12 x 2 x 2 cm |
| Weight | 80 Grams |
Safety Information and Warnings
The JUSTFOG Q16 PRO PLUS is equipped with 5 integrated safety protections:
- Overcharge Protection: Prevents battery damage from excessive charging.
- Short-Circuit Protection: Automatically cuts off power in case of a short circuit.
- Overheat Protection: Prevents the device from overheating during prolonged use.
- Over-Discharge Protection: Protects the battery from being fully drained, extending its lifespan.
- Reverse Polarity Protection: Safeguards against incorrect battery installation (though this device has an integrated battery, this protection applies to internal circuitry).
General Safety Precautions:
- Keep the device away from water and extreme temperatures.
- Do not drop, puncture, or disassemble the device.
- Use only the provided or recommended charging cable.
- Store e-liquids and the device out of reach of children and pets.
- This product is intended for adult smokers and vapers. Not for use by minors, pregnant or breastfeeding women, or individuals with pre-existing medical conditions.
- Dispose of the device and battery responsibly according to local regulations.
Warranty and Support
For warranty information and customer support, please refer to the warranty card included in your product packaging or contact the manufacturer directly through their official website. Keep your purchase receipt as proof of purchase.



