Dometic CFX3 55IM: Portable electric cooler with built-in ice maker for off-grid trips

Responsible: ad hoc news Classics & Long-sellers Desk. Reviewed prior to publication on June 14, 2026 at 6:03 PM ET. Details in the imprint.

The Dometic CFX3 55IM is one of Dometic's best-known portable electric coolers, combining a powerful compressor-based cooling system with a dedicated ice maker compartment for campers, RV owners, truckers, and boaters who want fridge and freezer performance far from shore power. It offers a usable capacity of around 53 liters (about 55 quarts), runs on 12/24 V DC or 110-120 V AC, and is designed to cool and deep-freeze contents down to approximately -7 degrees Fahrenheit (about -22 degrees Celsius) depending on the model and regional specification. According to Dometic, the integrated ice maker uses its own ice trays and an independent rapid-freeze plate near the compressor to produce ice while the main compartment continues to operate at a higher, user-selected temperature. For US consumers, the CFX3 55IM is widely available through large retailers such as Amazon and REI as well as RV dealers and specialty overlanding shops, with typical street prices often seen in the $1,100 to $1,300 range depending on promotions and bundles.

What the Dometic CFX3 55IM does and how it is built

The CFX3 55IM is a compressor-driven electric cooler, not a passive ice chest, which means it can actively cool and freeze food without the need for ice bags that melt and create water inside the box. Dometic uses a variable-speed compressor and electronic thermostat to keep the set temperature stable, and the unit can usually be controlled between deep-freeze range and standard refrigerator temperatures via a front-mounted control panel with a color display. The cooler body is built from impact-resistant plastic with aluminum alloy handles, reinforced corners, and a heavy-duty lid designed to withstand outdoor use in vehicles and at campsites. Inside, the CFX3 55IM typically has a removable wire basket and a divider system, allowing users to separate fresh goods, drinks, and frozen items, while LED interior lighting makes it easier to find items in low-light conditions.

A key feature that differentiates the 55IM from other CFX3 models is the dedicated ice maker compartment located at one end of the interior, which includes two small trays that sit directly on the rapid-freeze plate. When activated, the compressor directs extra cooling power to this plate so that water in the trays freezes, producing small ice cubes for drinks even if the rest of the cooler is set to a refrigerator temperature around 37 to 41 degrees Fahrenheit. This approach allows RV travelers and overlanders to enjoy cold beverages with real ice without turning the entire cooler into a deep-freeze, which would risk freezing vegetables, dairy, or prepared meals stored in the main compartment. Dometic highlights that this ice-making functionality is available off-grid as long as the unit is connected to a suitable 12 V battery or auxiliary power system, though real-world performance depends on ambient temperature, battery capacity, and how often the lid is opened.

For power management, the CFX3 55IM is equipped with a three-stage battery protection system that allows users to choose cut-off voltages to protect starter batteries in vehicles. This feature is particularly important for pickup trucks, SUVs, or vans that power the cooler from the main battery while parked, helping reduce the risk of a no-start situation. Dometic also provides Bluetooth and sometimes Wi-Fi connectivity via the Dometic CFX3 app, which lets users monitor temperature, change settings, and view power consumption data from a smartphone. This remote control function can be useful if the cooler is mounted in the back of a truck, on a slide in a drawer system, or in an RV storage compartment where direct access to the display is less convenient. In many US setups, owners pair the CFX3 55IM with roof-mounted solar panels and a dedicated lithium battery or portable power station to run the cooler continuously over multi-day trips without having to idle the engine for charging.

The cooler's exterior dimensions and weight reflect its capacity and hardware: the CFX3 55IM weighs on the order of 50 pounds empty, depending on the exact configuration and market, and measures roughly 28 to 30 inches in length, 16 to 18 inches in width, and around 18 inches in height, making it suitable for placement in most midsize SUV cargo areas or pickup beds. Dometic integrates robust spring-loaded handles on both sides, allowing two people to lift and carry the unit when fully loaded. The lid is usually reversible or has hinges that can be repositioned, enabling flexible opening directions depending on how the cooler is installed. Some official accessories include slide-out mounting rails for vehicle installs, insulated protective covers to improve efficiency and protect against scratches, and tie-down kits to secure the cooler to the vehicle floor during off-road driving.

Noise level is another consideration for users who sleep in their vehicles or rooftop tents. As a compressor cooler, the CFX3 55IM does produce some operational noise when the compressor cycles, but user reviews and product tests often describe it as comparable to or quieter than a small household refrigerator, especially when running in eco or low-power modes. Because the compressor does not need to operate continuously, the actual noise exposure overnight depends heavily on ambient temperature, setpoint, and how often the lid is opened before sleeping, which affects the internal heat load. In many cases, users place the cooler slightly away from sleeping areas or use vehicle compartments to attenuate sound.

From a durability standpoint, Dometic promotes the CFX3 line as suitable for off-road and marine environments, and third-party reviews point to the reinforced plastic shell and beefy handles as clear upgrades versus simpler thermoelectric coolers. The company often references test protocols involving vibration and impact loads similar to what a cooler might face in overlanding or boating applications, although detailed test data is not always disclosed. Beyond mechanical strength, the cooler's electronics and compressor are designed to handle voltage fluctuations and the rougher duty cycle of frequent cycling in high ambient temperatures. For US buyers, Dometic typically backs the CFX3 range with a limited warranty, and many retailers offer extended protection plans for additional cost.

From a use-case perspective, the CFX3 55IM is positioned as a flexible size in the CFX3 lineup: larger than compact models suitable for day trips, but smaller than high-capacity units aimed at long expeditions or large families. At around 53 liters, it can usually hold several days' worth of food for two to four people, depending on how much space is reserved for drinks and frozen goods. The built-in ice maker adds value for users who frequently entertain, enjoy cocktails at camp, or simply prefer ice in their water or soft drinks without needing to buy bagged ice along the way. Compared to passive coolers, the ability to keep ice and frozen foods for extended periods without melting-related mess can be a major advantage on longer road trips or for full-time vanlifers.

The Dometic CFX3 55IM also plays a role in Dometic Group AB's broader portfolio strategy, which focuses on mobile living solutions for RVs, boats, trucks, and outdoor recreation, including refrigerators, stoves, sanitation systems, and climate-control units. As part of the CFX3 series, the 55IM contributes to the company's premium portable cooling segment, where Dometic competes with brands like ARB, Engel, and National Luna. Shares of Dometic Group AB (SE0007691613, ticker DOMTF) last traded over the counter in the US; as of the latest available data on US trading platforms, the stock was quoted in US dollars on the OTC market rather than a primary NYSE or Nasdaq listing.

This article was created with a.i. assistance and editorially reviewed. Product information is provided without warranty; prices and availability may change at any time. Not investment advice, not a buy or sell recommendation. Trading in securities carries risks up to the total loss of capital.