Volume
The volume of the working chamber of the car refrigerator. The larger the volume, the more products can be loaded into the unit at a time. When choosing according to this parameter, it makes sense to select a model with a margin, because it is not recommended to load products too tightly — this adversely affects the quality of the device. On the other hand, note that the volumetric container and dimensions will have the appropriate ones.
Number of chambers
The presence in the refrigerator of separate zones for storing products, separated by a stationary dense wall of a non-removable structure. The vast majority of car refrigerators have a
single-chamber layout, however, there are also
two-chamber models, which is extremely convenient for sorting products.
Max. cooling at
This parameter determines how many degrees the refrigerator is able to cool the product loaded into it relative to the ambient temperature. Let's say the maximum cooling for a particular refrigerator model is 20°C; at an air temperature of +30°C, a product with the same temperature is loaded into it. Thus, the final temperature of the product will be 30 – 20 = +10 °C. In addition, it should be noted that the final temperature cannot be lower than the minimum cooling temperature (see Minimum cooling temperature)
Supply voltage
The supply voltage for which the car refrigerator is designed. There are several standard options:
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12 V. Standard on-board voltage for passenger cars, as well as many minibuses and light trucks. Supported by most modern car refrigerators.
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24 V. Standard voltage of the on-board network of buses, heavy trucks and other large equipment; also found in some SUVs. Car refrigerators “only for 24 V” are practically not produced, usually, such a possibility is provided in addition to 12 V.
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230 V. Powered by a standard household outlet. It is usually a fallback option in case the refrigerator needs to be turned on outside the car for a while — for example, to pre-cool before a trip. In addition, units with such a power supply can be used as an impromptu replacement for a stationary refrigerator — for example, when leaving for a country house where there is no permanent refrigerator.
