Mobicool MT35W
Mobicool MT35W Thermoelectric Cool Box User Manual
Model: MT35W (9600024962)
Product Overview
The Mobicool MT35W AC/DC is a versatile thermoelectric cool box designed for both cooling and warming functions. It features robust construction, integrated wheels and handle for easy transport, and a convenient door-in-door access. This manual provides essential information for the safe and efficient operation of your MT35W cool box.

Figure 1: Mobicool MT35W Cool Box with the lid open, revealing bottles stored inside. The internal light illuminates the contents.
Safety Instructions
Please read these safety instructions carefully before operating the appliance. Failure to do so may result in injury or damage to the product.
- Ensure the power supply matches the voltage specified on the appliance's rating label.
- Do not immerse the appliance in water or other liquids.
- Keep ventilation openings clear of obstructions.
- Do not use electrical appliances inside the cool box unless they are of the type recommended by the manufacturer.
- Do not store explosive substances such as aerosol cans with a flammable propellant in this appliance.
- The appliance can be used by children aged 8 years and above and persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the appliance in a safe way and understand the hazards involved.
- Cleaning and user maintenance shall not be made by children without supervision.
- Disconnect from power supply before cleaning or maintenance.
- If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or similarly qualified persons in order to avoid a hazard.
Setup
Before first use, ensure the cool box is placed on a stable, level surface with adequate ventilation around it. Allow at least 10 cm of space on all sides for proper air circulation.
Connecting to Power
The MT35W can be operated using either 12V DC (car/truck) or 230V AC (household socket) power sources.
- 12V DC Operation: Connect the 12V DC cable to the cool box's 12V input socket and then to your vehicle's cigarette lighter socket.
- 230V AC Operation: Connect the 230V AC cable to the cool box's 230V input socket and then to a standard household power outlet.

Figure 2: Detail of the power connection panel on the Mobicool MT35W, showing both 12V and 230V input options. A power cable is shown connected.
Initial Preparation
- Clean the interior of the cool box with a damp cloth before first use.
- For optimal cooling performance, pre-cool the unit for several hours before loading contents.
Operating Instructions
The Mobicool MT35W offers both cooling and heating functionalities.
Cooling Function
To activate cooling, ensure the cool box is connected to a power source. The unit will begin to cool down to approximately 18°C below the ambient temperature. The cooling indicator light will illuminate.
- Quick Access Door: Utilize the separate small door in the lid for quick access to bottles without opening the entire lid, minimizing cold air loss.
- Internal Dividers: Use the internal dividers to organize contents efficiently and prevent items from shifting during transport.
- Upright Storage: The design allows for upright storage of 2-liter bottles.
Heating Function
To activate heating, switch the function selector (if present, or refer to specific model controls) to the heating mode. The unit will heat contents up to +65°C. The heating indicator light will illuminate.
Integrated ABS (Active Battery Protection)
The MT35W features an integrated active battery fuse system. This system monitors your vehicle's battery voltage and automatically shuts off the cool box if the voltage drops too low, preventing complete battery discharge and ensuring you can start your vehicle.

Figure 3: The Mobicool MT35W Cool Box shown with its integrated wheels and extended handle, highlighting its portability.
Maintenance
Regular maintenance ensures the longevity and optimal performance of your cool box.
Cleaning
- Always disconnect the cool box from the power supply before cleaning.
- Clean the interior and exterior surfaces with a damp cloth and mild detergent.
- Do not use abrasive cleaners or solvents.
- Ensure the cool box is completely dry before storing or reconnecting to power.
- Periodically clean the ventilation grilles to ensure proper airflow and prevent overheating.
Storage
- When not in use for extended periods, store the cool box in a dry, well-ventilated area.
- Leave the lid slightly ajar to prevent odors and mildew formation.
- Store the power cables neatly in the integrated cable compartment in the lid.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Appliance does not turn on. | No power supply; cable not connected; vehicle battery low (ABS activated). | Check power connection; ensure power source is active; check vehicle battery voltage. |
| Insufficient cooling/heating. | Poor ventilation; ambient temperature too high/low; lid not closed properly; too many contents. | Ensure adequate ventilation; close lid securely; reduce contents if overloaded. |
| Unusual noise from fan. | Fan obstructed or dirty. | Clean fan and ventilation grilles. If noise persists, contact support. |
If the problem persists after attempting these solutions, please contact customer support.
Specifications
| Feature | Detail |
|---|---|
| Model Name | MT35W |
| Model Number | 9600024962 |
| Capacity | 33 Liters |
| Cooling Performance | Up to 18°C below ambient temperature |
| Heating Performance | Up to +65°C |
| Power Input | 12V DC, 230V AC |
| Material | ABS, Polyethylene |
| Product Dimensions (D x W x H) | 540 mm x 350 mm x 456 mm (approx. 21.46"D) |
| Item Weight | 8.8 Kilograms (19.36 pounds) |
| Special Features | Wheeled, Integrated ABS (Active Battery Protection), Cable Compartment |
| Included Components | Cool box, power cables |

Figure 4: EU Energy Label for the Mobicool MT35W, indicating its energy efficiency class F and a capacity of 33 liters. For more details, visit the official EU EPREL database: eprel.ec.europa.eu/qr/421434

Figure 5: Product data sheet providing comprehensive technical specifications and compliance information for the Mobicool MT35W. Further information can be found on the Dometic website: www.dometic.com
Warranty and Support
Warranty Information
The manufacturer, Dometic Germany GmbH, provides a minimum warranty period of 0 months as per product specifications. Please refer to your purchase receipt or contact your retailer for specific warranty terms and conditions applicable to your region and purchase date. Extended protection plans may be available for purchase separately.
Customer Support
For technical assistance, spare parts, or service inquiries, please contact Mobicool customer support or visit the official Dometic website. When contacting support, please have your product model (MT35W) and serial number (if applicable) ready.
- Manufacturer: Dometic Germany GmbH
- Brand: Mobicool
- Official Website: www.dometic.com
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