The world's most in-depth and scientific reviews of outdoor gear

Cooluli Mini Fridge Review

Quiet and tiny, this is a decent personal cooler, though with several limitations.
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Price:  $50 List | $44.99 at Amazon
Pros:  Super portable, very quiet, can be cold or hot, pretty low energy usage
Cons:  Can't control temperature, not the best seal, USB can't be used in computer, plastic hinges, unknown longevity
Manufacturer:   Cooluli
By Maggie Brandenburg ⋅ Senior Review Editor  ⋅  Sep 17, 2019
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49
OVERALL
SCORE


RANKED
#8 of 9
  • Temperature Control - 25% 5
  • Insulation - 25% 2
  • Energy Consumption - 20% 6
  • Ease of Use - 15% 5
  • Portability - 10% 9
  • Features - 5% 6

Our Verdict

The Cooluli Mini Fridge is an itty bitty desktop or countertop cooler or heater that's just big enough to hold your lunch, a few drinks, or those pamper-yourself cooling face masks. It's exceptionally quiet and can easily stay running 24/7 on your make-up stand or work desk. It performs decently well for a thermoelectric model, though shouldn't be trusted with truly temperature-sensitive items. If you're sick of sharing the work fridge with messy colleagues or want to keep your beauty products chilled, this little unit might be just what you've been searching for.


Compare to Similar Products

 
Awards  Editors' Choice Award Top Pick Award  Best Buy Award 
Price $44.99 at Amazon$838.00 at Amazon$999.97 at Amazon$449.86 at Amazon$379.99 at Amazon
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Pros Super portable, very quiet, can be cold or hot, pretty low energy usageExcellent temperature control, energy efficient, large capacity, extremely sturdy, full of useful featuresEnergy efficient, good features, super durable, long DC cordExcellent low energy mode, long cord, good temperature range and control, useful baskets, less expensiveVery energy efficient, relatively inexpensive, impressive minimum temperature, surprisingly lightweight, long cord
Cons Can't control temperature, not the best seal, USB can't be used in computer, plastic hinges, unknown longevityExpensive, relatively short cords, no energy-saving modeUnimpressive minimum temperature, heavy for its size, relatively loudHeavy, small capacity, control panel on backNot durable, takes a long time to cool, insulation not great, fairly loud
Bottom Line Quiet and tiny, this is a decent personal cooler, though with several limitations.Precision performance and everything you want in a cooler made to last through years of adventures.Energy efficient and tank-like, though not the coldest or the quietest.Performance where it matters for a lower cost.An impressive performer for a lot less than the competition.
Rating Categories Cooluli Mini Fridge Dometic CFX 50W Engel Platinum MT35 Whynter FM-45G Costway 54
Temperature Control (25%)
10
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5
10
0
9
10
0
6
10
0
8
10
0
8
Insulation (25%)
10
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2
10
0
8
10
0
8
10
0
8
10
0
5
Energy Consumption (20%)
10
0
6
10
0
7
10
0
9
10
0
7
10
0
8
Ease Of Use (15%)
10
0
5
10
0
8
10
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6
10
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7
10
0
5
Portability (10%)
10
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9
10
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6
10
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6
10
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3
10
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7
Features (5%)
10
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6
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8
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6
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6
Specs Cooluli Mini Fridge Dometic CFX 50W Engel Platinum MT35 Whynter FM-45G Costway 54
Minimum Temperature Achieved (F) 42.8ºF with contents -8.9ºF 5.5ºF -5.8ºF -8.9ºF
Temperature Increase in 36 Hours Unplugged (F) 26.6ºF 20.7ºF 18.9ºF 21.6ºF 27.9ºF
Power Draw in Watts (cooling) 33.9 W 51.8 W 31.7 W 65.5 W
35.5 (low)
50.0 W
38.9 W (eco)
Power Draw in Watts (steady) N/A 0.8 W 1.1 W 0.8 W 1.0 W
Power Draw in Watts (heating) 29.7 W N/A N/A N/A N/A
Voltage Use (cooling) 13.84 V 13.26 V 13.85 V 13.39 V 13.47 V
Amperage Use (cooling) 2.45 A 3.89 A 2.30 A 4.91 A 3.72 A
Minutes to Cool (according to display) N/A 16 min 52 min 145 min 80 min
Hours to Cool (measured) 20.5 hrs 5.5 hrs 16 hrs 8 hrs 9.5 hrs
Maximum Temperature Achieved (F) 136.0ºF N/A N/A N/A N/A
Temperature Accuracy (diff btwn display and actual) N/A +/- 3.0ºF +/- 2.5ºF +/- 1.6ºF +/- 3.8ºF
Weight 3.7 lb 46.4 lb 47.8 lb 54.6 lb 34 lb
Claimed Capacity (volume) 4 L
4.2 quarts
46 L
48.6 quarts
32 L
34 quarts
42.5 L
45 quarts
51.1 L
54 quarts
Measured Capacity (volume) 4 L
4.2 quarts
54.2 L
51.3 quarts
27.5 L
29 quarts
42.4 L
40.1 quarts
49.1 L
51.8 quarts
Capacity (cans) 6 cans 86 cans 38 cans 58 cans 72 cans
Method of Cooling Thermoelectric 12V compressor 12V compressor 12V compressor 12V compressor
Advertised Achievable Temperature Range (F) 40ºF below ambient to 149ºF -8ºF to 50ºF 0ºF to 50ºF -8ºF to 50ºF -4ºF to 50ºF
Acceptable Ambient Temperature Range (F) Not specified 61ºF to 109ºF
(min temp cannot be reached is >90ºF)
Not specified 41ºF to 90ºF
(max setting if >90ºF)
50ºF to 109ºF
Exterior Dimensions (D x W x H) 10" x 7.25" x 10.5” 17.9" x 28.5" x 18.5" 14.25" x 28" x 15.7" 17.25" x 25" x 20" 21" x 27.5" x 14"
Interior Dimensions (D x W x H) 5.75" x 5.25" x 8" 13.2" x 13.5"/7.25" x 14.2"/6.25" 15.25" x 10.75" x 10.25" 11.25" x 11"/7.25" x 15"/7.25" 10.4" x 12.75"/6.4" x 17.25"/10.6"
DC Cord Length (feet) 6' 3.5" 6' 3" 9' 6.5" 9' 6" 7' 9.75"
AC Cord Length (feet) 5' 8" 6' 3" 5' 8" 6' 2" 6' 4.25" (AC adapter only)
14' 7" (DC and AC adapter)
Comes With AC cord, DC cord, USB cord (3' 1") AC cord, DC cord AC cord, DC cord, extra fuse AC cord, DC cord DC cord, DC to AC adapter and cord
Features Top handle, heating ability, USB power cord WiFi app, internal light, C/F display, USB port, adjust display brightness, drain/plug, removable adapter collar on DC cord, emergency switch for control panel failure Removable lid, internal light, C/F display Displays battery level, drain/plug Eco power-saving function, internal light

Our Analysis and Test Results

The Cooluli is a thermoelectric model that we tested in the 4L size. It also comes in 10L, 15L, and 20L models and several colors. It claims to reach temperatures up to 149ºF and down to 40ºF below ambient. This model comes with AC and DC cords as well as a USB cord.

Performance Comparison


Have your own personal desktop cooler with this little 4L thermoelectric unit.
Have your own personal desktop cooler with this little 4L thermoelectric unit.

Temperature Control


Though it has just two settings ('cold' or 'hot'), this tiny cooler does a pretty good job at both those things. During our testing, it reached as low as 42.8ºF, which was about 30ºF below ambient. This isn't as good of a performance as promised, but it's better than most the other thermoelectric coolers we tested. On the heat setting, it reached 136ºF, though Cooluli claims it should max out at 149º. Again, not as impressive as promised, but still more impressive than most of the other thermoelectric units. It took 20.5 hours to reach the lowest temperature and 9.5 to reach the highest, both of which are much longer than claimed by the manufacturer but about on par with the other thermoelectric models. It does pretty well, though without any real temperature control it shouldn't be used for temperature-sensitive items like raw meat, certain medications, or breast milk.

The extent of your temperature control options are 'cold' or 'hot'.
The extent of your temperature control options are 'cold' or 'hot'.

Insulation


Over 36 hours unplugged, the Cooluli rose 26.6ºF. That's not terrible, considering how small it is. However, if you were to open it even once, you'd likely lose all your cold air in one go. Made mostly of plastic, this "mini-fridge" isn't the most inspirational unit when it comes to durability. Even the hinges are made of plastic, though with an aluminum pin. Considering its relatively tame intended usage, you probably don't need the sturdiest tiny cooler, but if your toddler likes to get ahold of things or you tend to drop stuff, this may not make the journey.

Thin plastic hinges aren't the most impressive part of this cooler.
Thin plastic hinges aren't the most impressive part of this cooler.

Energy Consumption


We're pretty impressed with the energy draw of this little box. While cooling, it pulls 33.9 Watts, and when heating, it uses just 29.7 Watts. That's pretty impressive stacked up to the competition, though with its tiny size, we're glad it doesn't pull gobs of energy for barely any contents. It also runs in Eco mode when using the USB for power, which is a neat feature. However, you can't plug the USB into a computer, as most computers don't output enough energy from their USB ports. You can, however, plug it into a power bank, as long as you double-check that it meets the power requirements of your unit. The Cooluli is also impressively quiet, which makes having it sit on your desk at work or your bedroom counter a pretty non-disruptive experience.

The protective plastic bumpers around these screws on the bottom of the unit can be rather scratchy  so take care setting it on a scratchable surface  like a wooden counter or desk.
The protective plastic bumpers around these screws on the bottom of the unit can be rather scratchy, so take care setting it on a scratchable surface, like a wooden counter or desk.

Ease of Use


The Cooluli opens and functions just like a miniature fridge. It has a magnetic closure that's easy to open with one hand. Unfortunately, it's not a very strong magnet, and so easily comes open while you're carrying your cooler from place to place. A single removable shelf and a very narrow removable door basket help you stay organized. However, one thing we did discover is that many sandwich boxes and other fairly standard-sized Tupperwares are too large to fit inside the 5.75" x 5.25" x 8" interior, which could put a damper on your ability to use it to keep your lunch cool at work. This unit is rated to be running 24/7, which is more than we can say for the majority of thermoelectric coolers, increasing its usability. It also comes with both AC and DC power cords and a very short USB cord for use with a power bank.

Just enough space for your lunch or a snack  if you pack it right.
Just enough space for your lunch or a snack, if you pack it right.

Portability


Clearly, this 4L model is much lighter than most of the much larger coolers we tested, tipping the scales at just 3lb 11oz. It has an indented top handle that makes it even easier to pick up and move around. The AC cord is 5'8" long and the DC cord is 6'3" — not incredibly long, but with decent room to maneuver. The USB cord is much shorter though, at just over 3 feet. Really, the only hindrance to toting this tiny box around is the weak magnetic seal. More than once we had it filled with 6 cans that toppled out while we were carrying it.

An immobile  easy-to-use handle makes the Cooluli simple to carry.
An immobile, easy-to-use handle makes the Cooluli simple to carry.

Features


The Cooluli is a very small unit, and so lacks many of the frills of larger powered coolers. Honestly, we think that the features it does have are pretty solid for such a little model. Three different power cords (AC, DC, and USB), a single shelf, a small basket, a handle on top and the ability to heat as well as cool — we think the Cooluli is just right.

A small  removable basket inside the door is just large enough for these little cheese wheels. The black seal helps hold in the right temperature  though isn't quite strong enough to resist flying open when you're carrying this unit full of soda cans.
A small, removable basket inside the door is just large enough for these little cheese wheels. The black seal helps hold in the right temperature, though isn't quite strong enough to resist flying open when you're carrying this unit full of soda cans.

Value


In a category of extremely expensive options, the Cooluli is a breath of fresh air with a double-digit price tag. Clearly it's not about to perform at the same level as the four-digit models out there, but for what it is, this simple little cooler isn't overpriced. Its size has some limitations, but if 4L is the right capacity for you, we think you'll appreciate what the Cooluli has to offer.

Conclusion


This adorably small, 4L thermoelectric cooler/heater does pretty well for what it is. It's not about to be your long term food storage solution or method of bringing a casserole to the potluck, but for a personal option you can keep close at hand, it's solid. Don't expect miracles in temperature control, but if you want something to stay mildly chilled or warmed, the Cooluli can help with that.

Super small  but super portable and very inexpensive.
Super small, but super portable and very inexpensive.


Maggie Brandenburg