Finding a suitable fridge or freezer for camping, boating, or travelling with a campervan requires careful comparison. Size, power consumption, cooling capacity, and available space play an important role.
A popular choice is the 12V cool box or 12V fridge-freezer. These appliances are designed for mobile use and offer reliable cooling in locations without a fixed power outlet.
What is a 12V fridge or freezer?
A 12V fridge operates on direct current and can be directly connected to the 12V socket of a car, campervan, or boat. Many models can also be powered by a leisure battery, portable power station, or solar energy system.
This makes 12V cool boxes suitable for:
• camping
• campervan trips
• boating
• road trips
• off-grid use
• day trips and events
You don't need to connect the appliance permanently to a 230V mains socket. This provides more freedom when travelling and makes it easier to keep food and drinks cool.
How does a 12V fridge-freezer work?
Most high-quality 12V cool boxes use a compressor. This technology works similarly to a household refrigerator but is optimized for mobile and energy-efficient use.
A compressor cool box can reach low temperatures and, in many cases, can also be set as a freezer. The desired temperature is usually set via a digital control panel.
Some models feature separate cooling zones. This allows you to use, for example, one compartment as a refrigerator and the other as a freezer.
Advantages of a 12V cool box
A 12V fridge or freezer offers several advantages when travelling.
Low energy consumption
Compressor cool boxes only consume power when cooling is needed. Once the set temperature is reached, the compressor temporarily switches off. This helps limit power consumption.
Suitable for mobile use
A 12V cool box can be used in a car, campervan, caravan, or boat. Compact models are also easy to move.
Cooling and freezing
Many models can not only cool but also freeze. This is useful for longer trips, groceries, or storing frozen products.
No ice needed
Unlike a passive cool box, you don't need to use ice packs or bags of ice. This leaves more space for food and drinks.
What size do you need?
12V cool boxes are available in various capacities. The best capacity depends on the number of users, the duration of the trip, and the available space.
A compact model is suitable for day trips or one to two people. For families, longer camping trips, or use in a campervan, a larger model is often more practical.
Before purchasing, carefully measure the available space. Also, consider ventilation around the compressor and sufficient space to fully open the lid.
View our range of portable 12V cool boxes to compare different sizes.
Important features to look out for
In addition to capacity, there are several features that make use easier and safer.
Digital temperature control
With a digital display, you can accurately set and control the temperature.
Battery protection
Built-in battery protection prevents the battery of your car, campervan, or boat from being over-discharged. You can often choose from multiple protection levels.
Dual cooling zone
A cool box with two zones can simultaneously cool and freeze. This is especially useful during longer trips.
Handles and wheels
For larger models, sturdy handles or integrated wheels make transport easier.
12V and 24V connection
Many portable cool boxes work on both 12V and 24V. With a suitable adapter, some models can also be connected to 230V.
Power supply for a 12V cool box
You can power a 12V fridge in various ways:
• via the 12V connection of a vehicle
• via a leisure battery
• via a portable power station
• via a solar panel in combination with a battery
• via mains power with a suitable adapter
For long-term off-grid use, a combination of solar panels, a battery, and a charge controller is often the most practical solution.
How much power does a 12V fridge consume?
The actual power consumption varies per model and usage situation. Ambient temperature, set cooling temperature, ventilation, and the number of times the lid is opened all have an influence.
A cool box consumes more energy when it is in a warm car or when warm products need to be cooled down immediately. For the lowest consumption, it is best to place the appliance in the shade and ensure sufficient ventilation.
12V cool boxes from Totalcool
Totalcool offers portable cool boxes and fridge-freezers in various sizes, colours, and designs. The models are designed for use during camping, boating, campervan trips, and other mobile adventures.
View the available Totalcool cool boxes and freezers and compare the capacity, features, and connection options.
Choosing the right 12V fridge-freezer
A 12V cool box is a practical solution for keeping food and drinks chilled or frozen on the go. When making your choice, pay particular attention to the capacity, dimensions, temperature settings, battery protection, and power connections.
With the right size and suitable functions, you will have reliable cooling during every trip.