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Coleman 40qt Thermoelectric Cooler & Warmer, Hot/Cold Cooler Keeps Contents up to 40°F Cooler or 140°F Hotter Than Surrounding Temperature, No Ice Required, Plugs into Outlets for Vehicles & Truckers

4.1 4.1 out of 5 stars 6,659 ratings

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Style: Cold Only
Brand Coleman
Color Silver
Material Plastic
Package Information Box
Capacity 37.85 Liters
Product Dimensions 17"D x 15.3"W x 23.5"H
Item Weight 0.11 Kilograms
Special Feature Portable
Included Components Cooler

About this item

  • As an iceless cooler, it chills everything inside to 40°F below the surrounding temperature
  • Just plug it into your outlet at home (with a separate adaptor) or in your vehicle with the included power cord, and the quiet, long-lasting motor will do the work
  • It's large enough to hold 44 cans and works as a chest or upright like a small refrigerator with a door that converts to open from either side
  • Perfect for the office, dorm rooms, RVs, campers, truck cabs, cars, boats, SUVs
  • Lightweight travel design - 18 lbs. to easily move to and from your car or truck
  • 12V plug (5 Amps/60 Watts) with an 8-ft. power cord lets you power the pump from your car or boat outlet

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Top Brand: Coleman

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From the manufacturer

Coleman Company History

W.C. Coleman could see the light for the darkness. The young salesman was taking a stroll after a hard day’s work selling typewriters, and spotted a new type of lamplight in a drugstore window in Brockton, Alabama. This new light burned with a strong, steady white flame and was fueled by gasoline. The standard lamp of the era burned kerosene and produced a smoky, flickering, yellowish light. W.C. was stricken with very poor eyesight, and was very interested in this new, steady white light that enabled him to read even the smallest print in books and on medicine bottles. Coleman saw potential in the new light, and through his vision a new company was born that would put America’s farms and ranches in a new light, and would eventually make his name synonymous with outdoor fun.

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Coleman 40qt Thermoelectric Cooler & Warmer, Hot/Cold Cooler Keeps Contents up to 40°F Cooler or 140°F Hotter Than Surrounding Temperature, No Ice Required, Plugs into Outlets for Vehicles & Truckers


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Customer reviews

4.1 out of 5 stars
6,659 global ratings

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Customers say

Customers find the ice chest convenient for travel and great for road trips. They like its size. However, some customers have issues with the plug quality. There are mixed opinions on how well it keeps things cold, functionality, value for money, durability, and noise level.

AI-generated from the text of customer reviews

222 customers mention "Travel value"218 positive4 negative

Customers appreciate the travel value of the cooler. They find it convenient, dependable, and great for road trips, camping, and keeping food cool. It's also suitable for picnics and camping, though not for extended periods of time.

"...The unit gave no problems while running in the car and the power brick never got more than warm to the touch. Never hot...." Read more

"Still working fine. It's been used for camping/hunting, tailgating and at work. It keeps stuff "chilled". I added a thermal cover to insulate it...." Read more

"...I bought another which we have had for 4 years. Great for travel but use on our deck with the adapter...." Read more

"...I would recommend this cooler to anyone who needed it to keep things cool for their journey." Read more

166 customers mention "Size"128 positive38 negative

Customers appreciate the size of the ice chest. They find it has more room inside than others they looked at, and can fit enough food to feed their whole family of four. It fits perfectly in closets and is durable and suitable for its purpose. Some customers mention that it can be sat up or laid down to allow space for a fan.

"...It's huge have carried a gallon of drinking water and gallon of Gatorade and still had room for single waters and sandwich...." Read more

"...It's huge for just a couple bottles of milk but I also keep a lot of bottled water and other drinks in there, sometimes snacks!..." Read more

"...We are out exactly twice on the trip. The cooler/fridge fit enough food to feed my whole family of four including my voracious teenager...." Read more

"...quality compared to competitor, but cooling unit flawed & subpar, is smaller and louder than other brand and dangerously flawed with in..." Read more

838 customers mention "Keeps things cold"509 positive329 negative

Customers have different experiences with the ice chest's ability to keep food cold. Some say it keeps everything cold without being on, and it can keep meat frozen for over 5 days. Others mention it runs hot when plugged in, has no temperature control, and thermoelectric units are not good at removing heat quickly.

"...Great customer service! So, this cooler is awesome but perhaps this model is old and coleman has already redesigned it...." Read more

"...This Colman keeps things chilled. My beer is cold, veggies are crisp, eggs are cool, cheese don't get wet, bread isn't ruined, fruit isn't soggy and..." Read more

"...Thermoelectrics are not great at removing heat quickly compared to compressor units, if you place a bunch of warm objects in here, you won't get the..." Read more

"These coolers are very good until they are not. I'm a truck driver, I normally get 6-12 months out of these. I've owned about 6 of them...." Read more

788 customers mention "Functionality"545 positive243 negative

Customers have different views on the ice chest's functionality. Some say it works well for inside cars, camping, and inside homes in temperatures below 82 degrees Fahrenheit. Others mention issues like the fans not working, the unit not powering on, or arriving with factory defects.

"...Worked great on a 12 hour long road trip. Frozen food only got up to 15F, and the refrigerated side stayed around 30-35F for the whole trip...." Read more

"...Giving this a five star review because it worked perfectly for us, but you should know that the matching Coleman 120v wall adapter quit working..." Read more

"...Then normally around the one year mark the cooler just stops working all together. It's just something I've learned to live with...." Read more

"...This works great for inside car, camping if temperatures are below 82 and inside house..." Read more

332 customers mention "Value for money"229 positive103 negative

Customers have different views on the ice chest's value for money. Some find it useful and good value, while others are disappointed with the quality and durability.

"Great item" Read more

"...I've gotten a full year out on the road in my semi, it is a useful item but it will wear out fast with constant running...." Read more

"...They are pricey, but I did find a Massimo 50qt unit at costco for only 300 bucks (so only twice the price of this thing)...." Read more

"...Amazon has the best price for these, hands down, so make sure if you're getting one, you're getting it here...." Read more

250 customers mention "Durability"80 positive170 negative

Customers have different views on the ice chest's durability. Some find it well-constructed and lasting through many years of activities. Others report issues with the cooler failing quickly, suggesting a short service life for the transformer.

"...thing, Plug overheats to dangerously hit temperatures, and unit has high failure rate in very short period of time based on so many 1 star reviews..." Read more

"...This is my second Colman cooler. The first one lasted through many years of activities, and that's why I bought it again. I am happy with it." Read more

"...I've owned about 6 of them. The plugs that plug into the 12v charger just don't hold up...." Read more

"...Turned out the load had blown out the splitter, which blew the car’s 12-volt fuse. Oops!..." Read more

100 customers mention "Noise level"34 positive66 negative

Customers have different views on the noise level of the ice chest. Some find it quieter than other units and appreciate the long cord. Others report issues with the fan making a noisy or vibrating sound after heavy use.

"...to disconnect power source about 4 times for an hour as the fan starting making a noise, froze up...." Read more

"...The fan isn't too loud at all and I had it in the seat right behind me in an air-conditioned car set around 72F. Some tips about the cooler: It..." Read more

"...competitor, but cooling unit flawed & subpar, is smaller and louder than other brand and dangerously flawed with in manufacturing or poor engineering..." Read more

"...The electrical cord finally failed and the fan was beginning to make some sounds that it was one its last legs. This was after 20 some years!..." Read more

155 customers mention "Plug quality"28 positive127 negative

Customers have issues with the ice chest's plug quality. The plug overheats and burns out after being plugged in for too long. Some customers report that the plug melted into the socket after 4 months of use. They also mention that the cooler continuously runs without a temperature control, leading to food spoiled due to unplugging the cooler.

"...appears over and over in the reviews; fairly fast failure rate, defective plug that overheats to dangerously hot temp with BURN or FIRE DANGER, and..." Read more

"...The electrical cord finally failed and the fan was beginning to make some sounds that it was one its last legs. This was after 20 some years!..." Read more

"...On another trip, on a sailboat, the cooler went dead one day. It turned out to be the fuse...." Read more

"...The unit continuously runs...as there is no "thermostat" on it (A deff Minus...) but it did as advertised and not only "cooled"...it FROZE some..." Read more

A couple power glitches, but worth the trouble
4 out of 5 stars
A couple power glitches, but worth the trouble
I took this cooler on a week-long canal boat cruise bookended by five-hour car drives. It just kept cooling for days on end.My car is small, so it sat on the passenger seat plugged into the 12 volt along with several other devices via a splitter. Mid-way through the drive all my 12-volt items went dead. Turned out the load had blown out the splitter, which blew the car’s 12-volt fuse. Oops! A visit to an auto parts store and limiting the 12-volt to just the cooler and we were good.On another trip, on a sailboat, the cooler went dead one day. It turned out to be the fuse. The boat had probably experienced a power surge when we turned on the AC power system when plugged in at a dock. I ordered a pack of fuses and now keep them in the cooler in a zipper bag.Note, though that you must not put ice in this cooler—the melted ice will damage the mechanism. You can use pre-frozen sealed ice packs. I have also used ice in zipper bags and the cooler kept it frozen for quite a while. Point is, if it won’t cool, its utility as a cooler is limited. It becomes a storage box.The canal boat had an inverter so the cooler was plugged in to a 110 outlet. A couple times during the week it made a vibrating sound so I unplugged it for a couple hours. The box’s insulation retained the cool while it rested. We stored fruit, vegetables, dairy products, salsa, end a crew member’s medication in it. It doubled our refrigeration capacity.Tips: buy the AC adapter and some spare fuses. Be sure everyone knows not to put ice in it, and be careful about spilled liquids.
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Top reviews from the United States

  • Reviewed in the United States on September 12, 2020
    Style: Cold OnlyVerified Purchase
    Engineer here - These thermoelectric coolers work perfectly, AS LONG AS YOU KNOW A FEW IMPORTANT THINGS. Save yourself alot of money (and weight) and buy these over a compressor based unit if you're willing to follow some best practices.

    First - Prechill your cooler, and any food or drinks you may place in here for a few hours. Thermoelectrics are not great at removing heat quickly compared to compressor units, if you place a bunch of warm objects in here, you won't get the cooling you think you should. In order to pre-chill the unit, purchase the optional AC wall adaptor before you use it in your car.

    Second - This unit cools about 35-40 degrees F below AMBIENT temperature. If you place this in your trunk in the middle of the summer (where your trunk is 100+ degrees), this unit will only cool to 60F. If you bring an infrared thermometer with you, you can scope out placement for this unit and get the desired fridge (40F) or Freezer (10F) temps you're looking for. you also need to make sure the heat exchanger on the outside of the unit has some "breathing room". I've found in the summer time, that I can place it on my middle back seats, with the heat exchanger side sitting inbetween the driver and passenger front seats, and if I point my A/C vent directly at it, I can achieve temps as low as 15F inside the cooler. You can basically make small adjustments to your vents to raise or lower temps at that point (once again, having a cheap 15-20 dollar infrared thermometer makes this possible/easy).

    Third - Realize these units use about 3-4 more electricity than their equivalent compressor based counterparts. This means you can probably run one for about an hour or two off your car battery before it's dead, but that's it!!! If you plan on using something like this long term at home/office, or especially if you plan on using it off-grid a lot, you may be better off with a compressor based unit so you don't run out of/use too much electricity. This unit hooked up to the AC wall adaptor will pull 72 watts of power continuously, if you leave it running 24/7 at a standard rate of .12cents per kWh, it'll cost you 6 dollars a month to keep it plugged in. I only use this unit on trips where I'm in our car a lot.

    Alternatives - If you need something that uses less power for off-grid or long term use, and you don't mind the extra 10-15 lbs worth of weight, I recommend that you get a compressor based unit instead. They are pricey, but I did find a Massimo 50qt unit at costco for only 300 bucks (so only twice the price of this thing). Compressor based units also generally involve auto-shutoff battery saving features, and better temperature control that you don't need an infrared gun to monitor ;-).

    Bonus tip - Amazonbasics sells some Large rectangular ice packs that fit on the shelf mounts PERFECTLY. I purchased some of those to create a mini-freezer within this cooler. Worked great on a 12 hour long road trip. Frozen food only got up to 15F, and the refrigerated side stayed around 30-35F for the whole trip. Makes this unit quite versatile.

    Have fun!!
    562 people found this helpful
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  • Reviewed in the United States on September 4, 2017
    Style: Cold OnlyVerified Purchase
    Took this out of the box and promptly went on a two week road trip. This ran fine every day, including 24 hrs a day for the first 9 days until the AC adapter quit working. (after that, when we stopped at a hotel for the night, I emptied it into the hotel mini fridge..)

    I wanted to see how it would chill from room temperature, I put four bottles of room temp wine into this when I first plugged it in, left it plugged in overnight, and they were chilled by morning. After that, while on the road, everything stayed cold.

    For those wondering about leaving it plugged in for extended periods, we left this plugged in for a little over 6 hours while at the San Diego Zoo, and the car (3 year old Dodge Grand Caravan) started up just fine. We also left it plugged in for about 7 hours while in a hotel in Reno that didn't have a fridge. Car also started fine the next day. No dimming of lights or anything, so while the caveat is obvious that your car may not have as good of a battery, several hours while the car isn't running should not be a problem. Our food stayed cold during these times, I'm sure it helped that we had everything already cold, and kept the cooler pretty full. The van got pretty warm during the Zoo visit, but the food and bottles of water were still cold when we got back.

    Giving this a five star review because it worked perfectly for us, but you should know that the matching Coleman 120v wall adapter quit working after about 8 days. I'm having a replacement sent, but the adapter got hot to the touch when plugged into the wall so I'm pretty sure before our next road trip I'll be investing in something a little more heavy duty...

    My only other complaint after living on the road with this is the lack of wheels. If you have a hotel cart (or a valet service do all the work for you) at every stop, moving it around is no big deal, but it can get heavy if you have to carry it when it's full of food...
    10 people found this helpful
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  • Reviewed in the United States on September 15, 2023
    Style: Cold OnlyVerified Purchase
    Used twice. Was on continuously for 10 days. Had thermometer inside was in the 30s with occasionally up to 42° degrees Fahrenheit. Recommend placing cold items inside the unit first. Also, she had to disconnect power source about 4 times for an hour as the fan starting making a noise, froze up.

    We also purchased two universal 120 volt wall adapters to rotate them and try avoid overheating them as she uses this for 7 to 13 days of continuous service. Ambient air temperature can not be in the 90s, I our case ambient temp was 75 to about 82. Anything higher than than 82 outside temperature will be mid 40s and higher inside cooler temperatures. This works great for inside car, camping if temperatures are below 82 and inside house ( in our case inside climate controlled tent.

    For the price it does as advertised. This can only keep food cold with the right ambient(outside air temperatures) and you need to monitor for internal fan freezing, you can hear it. Just unplug it and it will thaw. In our case for about an hour. Highly recommend a good thermometer to monitor inside temperatures especially if you try to store perishable food. Going to use inside my truck as inside temperatures will not be about 80 and the alternator can handle the load.
    15 people found this helpful
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Top reviews from other countries

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  • WOODY
    5.0 out of 5 stars Muy bueno 👌 👍
    Reviewed in Mexico on August 2, 2024
    Style: Cold OnlyVerified Purchase
    Excelente refrigerador portátil
  • José Alberto Ramírez
    5.0 out of 5 stars Hielera
    Reviewed in Mexico on August 17, 2023
    Excelente para conservar alimentos, la carne dura hasta 4 o 5 días sin descomponerse
  • KB
    5.0 out of 5 stars Works great!
    Reviewed in Canada on August 29, 2021
    Style: Cold OnlyVerified Purchase
    Took this with me over a three day drive one province over during a heatwave. Kept my medication, milk, and juice cool while driving. Had no issues and was easy to set up and use. Removable rack allowed me to customize the inside to my needs and the cooler retained the coolness very well when not turned on for a while.

    Definitely a great buy!
  • Amazon Customer
    5.0 out of 5 stars The quality, the weight and that it keeps it at a certain temperature.
    Reviewed in Canada on November 21, 2018
    Great cooler.
    More than expected.
  • Ricardo Piña
    5.0 out of 5 stars Hielera Coleman eléctrica
    Reviewed in Mexico on April 15, 2024
    Style: Cold OnlyVerified Purchase
    Es muy buena me gusta porque enfría exelente y es muy liviana la recomiendo para los transportistas en espesial