Dometic CFX5 55IM Portable Electric Refrigerator Freezer with Ice Maker – 55L (97000050756)

The Dometic CFX5 55IM (97000050756) is a premium 55-liter portable electric refrigerator/freezer with a built-in ice maker, designed for RVs, camper vans, trucks, boats, and off-grid adventures. Powered by 12V or 24V DC electricity or 100–240V AC power, this portable compressor refrigerator keeps food and drinks cold without needing bags of ice—and can make its own ice when you want it.

With cooling temperatures down to -7°F (-22°C), a high-efficiency VMSO 3.5 compressor, advanced vacuum-insulated panels, and smartphone connectivity, the CFX5 55IM delivers dependable refrigeration whether you're plugged into shore power or running from a compatible battery system.

The generous 55-liter compartment holds up to approximately 84 standard 12-ounce cans, making it an excellent option for extended camping trips, overlanding, tailgating, and additional RV refrigeration.

One of its standout features is the integrated ice maker, allowing you to make fresh ice while keeping the main compartment refrigerated. No propane, melted ice bags, or soggy groceries required.

Key Features

• 55-Liter Capacity: Spacious portable cooler with room for up to approximately 84 standard 12-ounce cans.

• Built-In Ice Maker: Produces ice without requiring the entire refrigerator compartment to operate at freezing temperatures.

• Refrigerator or Freezer Operation: Adjustable main-compartment temperature from -7°F to 68°F (-22°C to 20°C).

• VMSO 3.5 Compressor: Variable-speed compressor technology adjusts performance to meet cooling demands.

• Vacuum-Insulated Panels: High-performance insulation helps reduce heat transfer and improve efficiency.

• 12V/24V DC Compatibility: Operates from compatible vehicle and RV battery systems.

• 100–240V AC Operation: Can run from household AC electricity, shore power, or compatible generators.

• Three-Stage Battery Protection: Helps protect vehicle batteries from excessive discharge.

• Bluetooth & Wi-Fi Connectivity: Monitor settings and control compatible functions through Dometic's Mobile Cooling app.

• High-Resolution Color Display: Weather-resistant control interface with soft-touch buttons.

• 18W USB Charging Port: Convenient charging connection for compatible electronic devices.

• Interior LED Lighting: Illuminates the cooling compartment in low-light conditions.

• Removable Storage Divider: Helps organize food and drinks inside the refrigerator.

• Removable Lid: Provides convenient access and flexibility for installation.

• Durable ExoFrame Construction: Reinforced corners and folding aluminum-alloy handles help withstand demanding travel conditions.

• Integrated Bottle Opener: A small detail that becomes surprisingly useful after setting up camp.

Technical Specifications

What Makes the Dometic CFX5 55IM Different?

The CFX5 55IM goes beyond traditional portable compressor coolers by combining refrigeration, freezing capability, and an integrated ice maker in one portable unit.

Its advanced insulation and variable-speed compressor are designed to reduce electrical consumption while maintaining consistent cooling temperatures.

Built-In Ice Maker

The integrated ice maker is one of the biggest reasons to choose the CFX5 55IM over a traditional portable refrigerator.

Instead of turning your entire cooling compartment into a freezer just to make ice, you can use the cooler for refrigerated food and beverages while making ice separately.

That makes it particularly convenient for campers who want cold drinks, fresh food, and ice without carrying a separate ice chest.

Vacuum-Insulated Panels

The CFX5 incorporates vacuum-insulated panels that reduce heat transfer between the inside of the refrigerator and the surrounding environment.

Better insulation helps the compressor maintain the selected temperature with less frequent operation under suitable conditions.

This is especially helpful in RVs and vehicles where available battery capacity matters.

VMSO 3.5 Compressor

Dometic's Variable Motor Speed Optimization technology adjusts compressor operation to match cooling demand.

Rather than treating every cooling situation the same, the system manages compressor performance according to operating conditions.

The result is efficient refrigeration for vehicle-based and off-grid applications.

How Much Battery Power Does the Dometic CFX5 55IM Use?

Because the CFX5 55IM uses compressor refrigeration, its electrical consumption varies with operating conditions.

The compressor cycles to maintain the selected temperature rather than consuming its rated input current continuously.

Dometic lists a rated input power of 55W, but this is not the same as continuous 24-hour consumption.

Actual electrical usage depends on:

• Ambient temperature and ventilation

• Refrigerator temperature setting

• Whether the ice maker is being used

• Frequency and duration of lid openings

• Temperature of food and beverages when loaded

• DC supply voltage and wiring condition

• Compressor cycling and operating conditions

Example Battery Consumption

For planning purposes, consider a hypothetical average electrical consumption of 25W over a full day.

On a nominal 12.8V lithium battery system, 600Wh represents approximately 47Ah of battery capacity before accounting for other electrical loads and losses.

Important: These numbers are illustrative calculations, not Dometic's published daily energy consumption for this cooler. Real-world usage can be higher or lower, particularly when making ice or operating in hot environments.

Can the CFX5 55IM Run From a 100Ah Lithium Battery?

Yes. The CFX5 55IM is compatible with properly configured 12V DC battery systems, including many RV LiFePO4 house battery installations.

A 12.8V 100Ah lithium battery stores approximately 1,280Wh of nominal energy.

Using the hypothetical consumption example above, 600Wh per day would represent approximately 47% of that battery's nominal energy capacity.

This example suggests that a 100Ah battery could support substantial refrigerator runtime under favorable conditions, but actual runtime must account for:

• Usable battery capacity

• Other RV electrical loads

• Battery age and condition

• Battery protection limits

• Compressor duty cycle

• Ice maker operation

• Charging from solar, alternator, or shore power

For off-grid installations, a properly sized solar charging system can help replace energy consumed throughout the day.

Understanding the Three-Stage Battery Protection System

The CFX5 55IM includes adjustable battery protection designed to reduce the likelihood of excessively discharging a vehicle battery.

This is particularly important when operating the cooler from the same battery used to start your vehicle.

Which Battery Protection Setting Should You Choose?

High Protection: Generally preferred when operating from a vehicle starting battery because it stops cooling at a higher voltage to help preserve starting capacity.

Medium Protection: Provides an intermediate balance between battery protection and available runtime.

Low Protection: Can allow greater use of available battery capacity and may be suitable for appropriately protected dedicated house battery systems.

Always follow Dometic's operating instructions and your battery manufacturer's recommendations when selecting a protection setting.

Important: The battery protection system is not a replacement for a lithium battery management system.

Why Your CFX5 Might Shut Down Even When the Battery Isn't Empty

One of the most common electrical issues with portable compressor refrigerators is voltage drop.

A battery may measure an acceptable voltage when no equipment is operating, but voltage can drop significantly at the refrigerator when the compressor starts.

Potential causes include:

• Undersized DC wiring

• Long extension cables

• Loose electrical connections

• Corroded accessory sockets

• Discharged or deteriorating batteries

• Battery protection set too high

• High-resistance adapters or plugs

If your cooler operates properly from AC power but shuts down when running on 12V DC, check the voltage at the cooler's connection while it is operating.

A voltage reading taken only at the battery terminals may not reveal voltage loss through the wiring.

Installation & Electrical Compatibility

The Dometic CFX5 55IM is designed for portable operation, but it can also be secured in suitable vehicle and RV storage areas.

Important Installation Considerations

1. Check Available Space: Verify the cooler's 28.35-inch width, 17.91-inch depth, and 18.90-inch height before choosing an installation location.

2. Allow Ventilation: Maintain at least 1.97 inches (50 mm) of ventilation clearance around the cooler, following Dometic's instructions.

3. Choose the Correct Electrical Supply: Use the appropriate supplied AC or DC power connection.

4. Check Wiring Capacity: Make sure DC outlets, cables, connections, and fuses are appropriately sized for the cooler.

5. Secure the Cooler: Prevent movement while driving using suitable restraints and manufacturer-approved mounting accessories.

6. Avoid Excessive Heat: Keep the refrigerator away from direct heat sources and avoid tightly enclosed compartments without adequate ventilation.

7. Set Battery Protection: Select the correct protection level for your battery system.

8. Pre-Cool When Possible: Running the refrigerator from shore power before departure can reduce initial battery demand.

9. Keep the Lid Sealed: Verify that the lid closes completely and the gasket remains clean and undamaged.

10. Protect From Weather: Follow the manufacturer's exposure limitations. A weather-resistant control display does not make the entire cooler waterproof.

Common Dometic CFX5 55IM Problems & Troubleshooting

CFX5 Works on AC Power but Not DC Power

Begin by checking the vehicle battery voltage and DC power connection.

Inspect the DC cable, plug, socket, and fuse.

If voltage drops at the cooler when the compressor attempts to start, the wiring may be undersized or have excessive resistance.

Also verify that the selected battery protection setting is appropriate for your installation.

CFX5 Displays a Low-Voltage Warning

The cooler may be detecting insufficient voltage at its DC input.

Check battery charge level and inspect the power wiring.

If the battery itself measures normal voltage but the cooler reports low voltage, investigate the cable, connectors, accessory outlet, and wiring length.

A higher battery protection setting may cause the cooler to stop operating sooner.

Refrigerator Isn't Cooling Properly

Confirm that the selected temperature is appropriate.

Inspect the lid gasket, make sure the lid is fully closed, and verify that ventilation openings aren't blocked.

Warm food, frequent lid openings, high ambient temperatures, and poor ventilation can extend cool-down time.

Ice Maker Isn't Working

First, verify that the ice maker has been enabled and is being operated according to Dometic's instructions.

Check the water supply in the ice-making trays and allow adequate time for ice production.

If the refrigerator cools normally but the ice maker repeatedly fails, refer to the CFX5 diagnostic information before attempting repairs.

Cooler Is Running More Often Than Expected

Compressor operating time increases as the surrounding temperature rises or cooling demand increases.

Inspect the lid seal and check for excessive heat around the cooler.

Frequently opening the lid or loading warm beverages can increase energy consumption.

Bluetooth or Wi-Fi Won't Connect

Verify that the cooler has power and that your phone is using the current Dometic Mobile Cooling app.

Check wireless settings and move closer to the cooler for initial setup.

Bluetooth and Wi-Fi performance can be affected by surrounding metal structures, wireless interference, and device compatibility.

CFX5 Makes Noise During Operation

Some compressor noise and vibration are normal.

The CFX5 includes damped internal components to help reduce vibration.

If unusual rattling occurs, verify that the cooler is securely positioned and that nearby objects aren't contacting the cabinet.

Persistent abnormal noises should be evaluated by an authorized service technician.

What's Included?

The Dometic CFX5 55IM package includes:

• Dometic CFX5 55IM Portable Refrigerator/Freezer with Integrated Ice Maker

• 12V/24V DC Connection Cable

• 100–240V AC Connection Cable

• Removable Interior Storage Components

• Manufacturer Operating Instructions

An external battery or portable power station is not included.

Frequently Asked Questions

Does the Dometic CFX5 55IM Need Ice?

No. The compressor refrigerates or freezes food without needing ice.

It also features a built-in ice maker for producing ice separately.

Can I Make Ice While Keeping Food Refrigerated?

Yes. The integrated ice maker is designed to operate while the main compartment is used for refrigeration.

The CFX5 55IM does not need to turn its entire storage compartment into a freezer to make ice.

Is the CFX5 55IM a Dual-Zone Refrigerator?

No. The main cooling compartment is a single zone with one selected temperature.

The separate ice maker does not make it a conventional dual-zone refrigerator/freezer.

Can I Run It on Propane?

No. The CFX5 55IM is an electric compressor refrigerator.

It requires compatible AC or DC electrical power.

Can I Use the CFX5 55IM With Solar Panels?

Yes. Solar panels can recharge a compatible battery system through an appropriately configured charge controller.

For most off-grid installations, the refrigerator should be powered through a suitable battery-based electrical system rather than directly from an unregulated solar panel.

Does It Have a Built-In Battery?

No. The cooler requires an external electrical power supply.

Can I Run It From My Truck's 12V Outlet?

Yes, provided the outlet, wiring, fuse, and electrical system can support the cooler's requirements.

Some vehicle accessory outlets may not provide adequate power or may shut off when the ignition is turned off.

Does It Work With Lithium Batteries?

Yes. The CFX5 55IM can operate from compatible lithium battery systems that provide the required voltage and current.

Use a properly configured battery management system and follow the battery manufacturer's installation requirements.

How Many Cans Does It Hold?

Dometic advertises a capacity of approximately 84 standard 12-ounce cans.

Actual storage capacity depends on the size and arrangement of the contents.

Does the CFX5 55IM Include a USB Charging Port?

Yes. The unit features an 18W USB charging connection for compatible devices.

Is the Dometic CFX5 55IM Waterproof?

No. Although it includes a weather-resistant control interface and durable construction, the cooler should be protected from rain, standing water, and immersion.

Can It Be Used as a Full-Time RV Refrigerator?

Yes, the CFX5 55IM can provide regular refrigeration in a properly designed electrical installation.

However, its storage capacity, ventilation requirements, power consumption, access, and mounting arrangement should be considered when planning full-time use.

Important Compatibility Information

Dometic part number 97000050756 identifies the CFX5 55IM, a 55-liter portable electric refrigerator/freezer with an integrated ice maker.

This model belongs to the CFX5 series and should not be confused with previous-generation CFX refrigerators, CFX3 models, or the smaller CFX2 portable coolers.

The unit operates on compatible 12V/24V DC or 100–240V AC electricity and does not have an internal battery.

The Dometic CFX5 55IM (97000050756) combines portable refrigeration, efficient compressor technology, and the convenience of making fresh ice into one versatile cooler.

Whether you're traveling in an RV, camping off-grid, exploring in a van, or spending weekends on the water, it offers a practical way to keep your food cold and your drinks ready without relying on bags of melting ice.

At RV Fridge Guys, we specialize in RV refrigeration and the electrical systems that keep refrigerators running. We're here to help you choose the right equipment and understand how to keep it operating reliably wherever you travel.