Portable 12V fridges: temperature ranges, energy figures and conflicting specs

Compare setting ranges as published limits

The Dometic CFX5 35 and CFX5 75DZ publish -7°F to 68°F; the product pages pair -7°F with -22°C, which converts to -7.6°F, so the Fahrenheit figure is a rounded specification. The ICECO VL45ProS and VL75ProD publish 0°F to 50°F. The BougeRV CRPRO30 specification table gives -8°F to 50°F while a FAQ on the same page says approximately -7°F; the table entry is retained.

The BougeRV Rocky V3.0 55QT, ICECO APL20, Anker SOLIX EverFrost 2 40L and EcoFlow GLACIER Classic 45L all publish -4°F to 68°F. ICECO qualifies reaching -20°C as dependent on conditions. The GLACIER Classic becomes two separately set zones when its supplied divider is installed, with up to a 22°C (39.6°F) difference between them; without the divider it runs as one zone. The Engel MT45 Platinum publishes -18°C to +10°C, which converts to -0.4°F to 50°F; its display can show Fahrenheit, but Engel prints no Fahrenheit limits.

These are setting ranges, not measured pull-down times or food temperatures.

Separate power ratings from energy figures

A power rating describes electrical input under a stated condition. EcoFlow lists a 55 W compressor power rating for the GLACIER Classic and separate input maxima of 95 W on AC, 100 W from a car socket and 110 W from solar. The Rocky manual gives MAX 80 W and ECO 64 W by mode. Anker's 95 W is the maximum AC input while charging, with a separate 100 W solar limit and a 60 W USB-C limit on the removable battery. The CRPRO30 listing repeats two tables that disagree, MAX 60 W and ECO 45 W against MAX 45 W and ECO 36 W, and its current manual prints 60 W MAX, so no value is selected. Dometic's light-bulb comparison and ICECO's laboratory MAX-mode watts are not treated as ratings. Engel publishes no wattage at all: its service manual gives rated amperage of 2.6 A at 12 V DC, 1.4 A at 24 V DC and 0.71 A on AC, and a 27 W compressor rating, while the US page and 2026 catalogue print different variable current ranges of 0.54–2.35 A and 0.7–2.5 A.

An energy figure describes consumption over time, and each manufacturer states it differently. The VL75ProD v7 manual lists 0.636 kWh over 24 hours without the ambient temperature, setpoints, mode or load. The APL20 manual lists 0.293 kWh per 24 hours with the same omissions. EcoFlow prints 165 Wh per 24 hours at a 39°F setting and 520 Wh per 24 hours at a -0.4°F setting, at 77°F ambient in Eco mode, identically for the 35 L, 45 L and 55 L sizes. Engel links a typical MT45F chart at 12.8 V with no load: 0.54 Ah per hour and 24% running time at 25°C ambient with +5°C cabinet air, and 1.19 Ah per hour with -5°C cabinet air; the chart uses thermostat positions rather than the Platinum digital control, so Engel does not state that it describes the current unit. Anker claims 4.3 days with two fully charged batteries in an empty cooler at 39°F internal and 77°F ambient in Eco mode, while the reviewed package includes one battery; the one-battery claim of 52 hours is not shown to use the same conditions.

Do not multiply a watt rating by 24 to estimate a day's energy: compressors cycle. Runtime claims that depend on an optional battery, such as EcoFlow's 39 hours with the separate 298 Wh plug-in battery, do not describe a battery-free package. CompareFoundry has not measured the consumption of any of these fridges.

Treat conflicting specifications as open questions

Three current models have weights or dimensions that their own sources contradict. The Rocky V3.0 product table lists 49.6 lb, while the manual it links, still named for the ROCKY2 and ROCKY50 generation, lists 20.1 kg without batteries, about 44.3 lb; the same page gives a 730 × 450 × 476 mm body and a different ROCKY50 comparison-table length. The Engel US page lists 55 lb and the 2026 catalogue and service manual list 52.9 lb; all three give 25.5 × 14.3 × 20 in, but the page and catalogue say the figures exclude handles of 1.5 in each while the service manual footnotes them as the largest measurement including latch and handles. Anker's US page metadata reports 50.71 lb and its US guide 55 lb, and neither says whether the removable battery is excluded; 24 V vehicle compatibility is also unverified.

Smaller disagreements still matter when you compare labels. The VL75ProD is advertised at 79.2 quarts on its page and printed at 79.0 quarts and 75.0 L in its v7 manual. Dometic converts 35 L and 75 L to 37 and 79.3 quarts. The GLACIER Classic 45L is 51.2 lb in its manual and 51 lb on its page, and its 45 L nominal capacity becomes 42 L of operational volume in the dual-zone configuration. The catalogue keeps these as recorded observations rather than choosing one; confirm the figure that matters for your installation with the exact unit.

Plan ventilation from the manual, not the body size

Closed body dimensions do not establish how much space a fridge needs to run. Dometic requires at least 50 mm (1.97 in) of ventilation on all sides. EcoFlow requires at least a 50 mm gap on all four sides. The ICECO ProD v7 manual specifies more than 5 cm at the left and right of the compressor cover and 10 cm at its front air outlet. The current CRPRO manual requires at least 7.9 in behind the fridge and 3.9 in at the side; the Rocky manual requires 200 mm behind and 100 mm at the side. Engel's owner's guide asks for at least 6 inches from solid walls and its service manual for at least 150 mm from each wall. None of the ten models publishes a numeric lid-opening envelope, so measure the open lid yourself before planning a fitted space.

Our capacity, zones and power guide covers storage layout, supplied cables and included batteries. Use the fridge comparison to keep up to five exact packages together and read the unresolved fields before you buy.