This model in refrigeration mode can maintain temperatures from -22°C to +10°C, and in heating mode from 25°C to 55°C, it operates in a wide voltage range from 12 to 24V, the maximum power is 60W. , in eco mode limited to 45W, there is also a three-stage protection against battery overdischarge, when triggered, the compressor does not activate until the voltage rises to the desired level. It cannot be powered from the mains, but if necessary, you can use the appropriate power supplies
The courier delivered a cardboard box. Upon receipt, make sure that the arrows on it point up, if the transport was carried out in a different position, you will need to postpone the first start for 12 hours so that the freon comes to its senses during this time.
In addition, the case is fixed inside with foam inserts, so it was not damaged during transportation, on top there is a small screen and backlit touch buttons, on the side there is only a power connector.
The lid, like most hiking options, opens, there is a chain that prevents the loops from breaking, as well as a note describing the normal temperature for a number of products and brief characteristics of the model. Inside, they stashed a microfiber cloth for wiping off condensate, instructions, two spare vibration-dampening feet, and a power cord.
The instructions are pretty detailed, there’s even a wiring diagram.
Management is intuitive:
To turn it on, you need to touch the power button for a few seconds, use the “+” and “-” buttons to select the desired temperature inside the chamber from -22°C to +10°C. By pressing the gear, the refrigerator is put into economy mode, if you press and hold your finger, you can select the operating voltage range, when it decreases, the standby mode is forced to turn on. If you simultaneously press the “-” and “+” buttons, the refrigerator will switch to heating mode with a temperature range of 25 ° C to 55 ° C
Tests
To begin with, I simply placed the thermocouple in the center and measured how long the air would cool down to the declared minimum, in 1 hour and 10 minutes the temperature reached -22°C, but the thermocouple showed only -18°C, but this it is normal, most likely the built-in temperature sensor is hidden in the lid and the plastic cools faster than air. Peak power was just over 60W and gradually decreased as it cooled down.
If you switch to ECO mode, consumption does not go above 45W, that’s all the savings
When heated, the maximum power is also in the region of 60W.
I also checked the uniformity of cooling and heating, everything is fine with this, there are no sharp drops
Let’s see how the battery over discharge protection works. With the value “H”, the standby mode is activated at a voltage lower than 11.3 V, the switch to normal operation occurs after an increase to 12.5 V (24.6-26 V), in ” M” these values are 10.1 V and 11.4 V (22.3-23.7 V), well, “L” squeezes to the maximum, which allows the voltage to drop to 9.8 and activate the compressor after 10.9V (21.3-22.7V). The loading scale at the bottom adjusts to the selected range and the divisions fill correctly
Transition to operating mode occurs automatically, but with a slight delay to allow the battery to charge
200 ml of water in a plastic cup cooled from 23°C to 10°C in 30 minutes, decreased by degree in a couple of minutes
Another 10 minutes later they dropped to 6°C. It began to freeze after 46. And 12 hours after the start of the test, the multimeter counted -15 ° C. After a couple of hours, the temperature dropped only 3 ° C
During this time, the casing warmed up slightly on the compressor side, the maximum temperature on the radiators was recorded by the thermal imager at about 47 ° C.
Well, it’s unlikely that anyone would buy a cooler to freeze ice, so I filled it with bottles of all sorts of liquids to drink. One and a half liter bottles do not fit vertically in a chamber measuring 27 * 25 * 35 cm, literally a couple of centimeters are missing, but there is enough space in width. Anything below 27cm goes up with no problem
Nobody likes ice cream drinks, so I just chilled to 5°C, the observation started at 18:52. Due to the high temperature of the bottles (30+°C), the air inside the chamber became warm. After 2 hours, the compressor “swallowed” 6Ah, after three hours it was still about 2Ah, well, 19Ah accumulated in 12 hours, which is not so little.
During this time, all the bottles have reached the desired temperature, the outer part of the body has not cooled down much.
After 7 hours that the temperature returned to normal, the consumption went up from 5Ah to 24Ah, and after another 7 the same result was obtained, so 10Ah in 14 hours seems more interesting, that is, after cooling to desired value and then hold it. , only 0.7A or 8.4W is required, so it’s enough to cool down everything before the trip and a normal car battery will last almost a working week without charging
After turning off the power, I left the bottles in the refrigerator for another 12 hours, during which time their temperature rose to 17 ° C, and this is in the summer in the garage. The result is not perfect, but better than I expected.
Fits under a shelf in the trunk of a sedan and doesn’t take up much room when turning, can be placed in the back instead of a passenger, won’t fit under foot
I measured the noise level using my phone, the app counted 39dB when turned on and 30dB after half a minute of “warming up”. For example, here is a small video in complete silence, it seems to me that the camera has raised the recording level, because. Live it seemed calmer to me than when watching the video in headphones)
Inside world
For those interested in what’s inside, here are some photos. It is disassembled without any problems, the main thing is not to turn the case over out of habit, refrigerators do not like this. At least you can make sure the compressor is really there
Leave
A fully functional model for an adequate price, it cools down quite quickly for a portable model, the thermal insulation is normal, the performance is several times higher than models based on Peltier elements, as well as the efficiency, so it comes out even cheaper.
There’s battery overcharge protection, as well as an ECO mode that limits the maximum current for weak sources, and thanks to a wide range of supply voltages, you can safely drag it to a truck and use it there without fear for safety. of electronics
There is also a heating mode, so that not only in summer you can save yourself, but also in winter you can consume hot drinks and food without leaving the hole during ice fishing.
Check availability and price in the official store
This model in refrigeration mode can maintain temperatures from -22°C to +10°C, and in heating mode from 25°C to 55°C, it operates in a wide voltage range from 12 to 24V, maximum…
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Source: IXBT
