Introduction
Thank you for choosing the Mobicool Q40 ACDC Electric Cooler Box. This manual provides essential information for the safe and efficient operation, maintenance, and troubleshooting of your new cooler. Please read this manual thoroughly before use and keep it for future reference.
The Mobicool Q40 ACDC is a versatile 39-liter thermoelectric cooler designed for both 12V (car/truck/boat/RV) and 230V (household) power sources, offering convenient cooling for your food and beverages on the go or at home.
Safety Instructions
Always observe the following safety precautions to prevent injury or damage to the appliance:
- Ensure the power supply matches the voltage specified on the cooler's rating label.
- Do not immerse the cooler or its power cord in water or other liquids.
- Do not operate the cooler if the power cord or plug is damaged.
- Keep ventilation openings clear and unobstructed to ensure proper airflow.
- Do not use electrical appliances inside the cooler unless they are of the type recommended by the manufacturer.
- This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety.
- Children should be supervised to ensure that they do not play with the appliance.
Product Features
- Dual voltage system (12V DC / 230V AC) for versatile use.
- Elegant aluminum outer casing for durability and aesthetics.
- Fold-down side handles for convenient transport.
- Integrated cable housing in the lid for neat storage of power cords.
- Spacious 39-liter capacity with organized storage options.
- Capable of cooling up to 20°C below ambient temperature.
- Low noise operation at 36 dB(A).
Setup
Unpacking
Carefully remove the cooler from its packaging. Inspect the cooler for any signs of damage during transit. Retain the packaging for future storage or transport if needed.
Placement
Place the cooler on a stable, level surface. Ensure there is adequate ventilation around the unit, especially near the fan and vents, to allow for proper heat dissipation. Avoid placing the cooler in direct sunlight or near heat sources.
Power Connection
The Mobicool Q40 ACDC supports two power inputs:
- 12V DC: For use in vehicles (cars, trucks, boats, RVs). Connect the 12V plug to the vehicle's cigarette lighter socket.
- 230V AC: For use with standard household outlets. Connect the 230V plug to a wall socket.
Ensure the correct power cord is used for the respective power source. The cooler features a convenient cable housing in the lid for storing unused cables.

Image: The Mobicool Q40 ACDC cooler showing the integrated cable storage compartment within the lid, holding both the 12V and 230V power cables.
Operating Instructions
Initial Operation
Once connected to a power source, the cooler will begin to operate. For optimal cooling performance, it is recommended to activate the highest cooling level. Note that thermoelectric coolers are designed to cool items and maintain temperature, not to freeze them like a conventional refrigerator.
Loading the Cooler
For best results, pre-chill items before placing them in the cooler. Arrange items to allow for air circulation. The cooler is designed to hold 2-liter bottles upright, offering flexible storage options.

Image: An open view of the Mobicool Q40 ACDC cooler's interior, demonstrating its spacious capacity with various beverages and food items neatly stored.

Image: The Mobicool Q40 ACDC cooler with its lid partially open, revealing several bottles standing upright inside, highlighting its capacity for tall items.
Transporting the Cooler
Utilize the fold-down side handles for easy and secure transport of the cooler. Ensure the lid is securely latched before moving.

Image: A person demonstrating how to carry the Mobicool Q40 ACDC cooler using its sturdy, fold-down side handles, emphasizing its portability.
Maintenance
Cleaning
Disconnect the cooler from the power supply before cleaning. Wipe the interior and exterior surfaces with a damp cloth and mild detergent. Do not use abrasive cleaners or solvents. Ensure the cooler is completely dry before reconnecting to power.
Storage
When not in use for extended periods, ensure the cooler is clean and dry. Store it in a cool, dry place away from direct sunlight and extreme temperatures. Keep the lid slightly ajar to prevent odors and mildew buildup.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Cooler not cooling | No power supply; fan obstructed; ambient temperature too high. | Check power connection; ensure vents are clear; move cooler to a cooler environment. |
| Excessive noise | Fan obstruction; cooler not on a level surface. | Clear any obstructions from the fan; place cooler on a stable, level surface. |
| Poor cooling performance | Lid not sealed properly; too many warm items added; insufficient ventilation. | Ensure lid is closed tightly; pre-chill items; ensure proper ventilation around the unit. |
If the problem persists after attempting these solutions, please contact Mobicool customer support.
Specifications
| Attribute | Value |
|---|---|
| Model Name | Q40 Acdc |
| Capacity | 39 Liters |
| Voltage | 12V DC / 230V AC |
| Cooling Performance | Up to 20°C below ambient temperature |
| Noise Level | 36 dB(A) (DIN60704-1 & 60704-2-14) |
| Item Dimensions (LxWxH) | 22.83 x 15.35 x 17.32 inches |
| Item Weight | 21.2 Pounds |
| Manufacturer | MOBICOOL |
| Part Number | 9105302772 |
Warranty and Support
Warranty Information
The manufacturer's warranty duration for this product is stated as 0 months in some specifications. For detailed and up-to-date warranty information, please refer to the official Mobicool website or contact their customer service directly.
Customer Support
For further assistance, technical support, or inquiries regarding your Mobicool Q40 ACDC Electric Cooler Box, please visit the official Dometic website, which is the parent company of Mobicool, at www.dometic.com. You may find FAQs, service centers, and contact information there.





