Product images: Amazon listings

Setpower MC20 21 Qt Review

Name: Setpower MC20 21 Qt
Brand: Setpower
SKU: B0CTZSY528

6.5Good · out of 10Not in our top-5 rankings

Written from the listing and 129 buyer reviews, not from our own use · How we rate

The Setpower MC20 21 Qt ticks most of the boxes we care about: 21 qt inside, real freezer temperatures and 3-level battery protection. It suits road trips where the cooler used to turn into soup, at 6.5/10 on our rating.

Price$159.99Price on Sep 30, 2026 · may have changed

Check the price on Amazon ↗Affiliate link · price and stock on Amazon

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Specifications

Brand	Setpower
Category	Portable 12V fridges
Stated capacity	21 qt
Temperature range	-4 °F to 68 °F, stated
Noise (stated)	42 dB
Power input	12/24V DC
Battery protection	3 levels, stated
Tilt (stated)	Up to 40°
Stated warranty	1 year
Tech support	1 years, per the listing
Buyer reviews	129 · 4.5/5
ASIN	B0CTZSY528

Full listing title: Setpower 12 Volt Refrigerator, 21QT portable freezer,12V Car Fridge With Fix Ropes,Compressor Electric Cooler -4℉~68℉,Plug in cooler for vehiclesTruck RV SUV Van Travel Camping (1-year warranty)

Listing evidence

Stated capacity	21QT Exact listing

Updated October 2026

Exact listing, ASIN B0CTZSY528

Rating from a published formula

Compared with similar 12V fridges

The two 12V fridges closest to it on our rating, with a dated price.

Compare side by side ↗

Setpower MC20 21 Qt

6.5Good · out of 10$159.99 Price on Sep 30, 2026 · may have changed

Stated: 21 qt
129 buyer reviews
Portable 12V fridges

This product ↑

Alpicool 28 Qt Car Fridge

6.5Good · out of 10$189.99 Price on Sep 30, 2026 · may have changed

Stated: 28 qt
73 buyer reviews
Portable 12V fridges

See the review ↗

EUHOMY 11 Qt App-Control

6.5Good · out of 10$107.94 Price on Sep 30, 2026 · may have changed

Stated: 11 qt
254 buyer reviews
Portable 12V fridges

See the review ↗

Capacity, per the listing

Roughly a long weekend for two. The listing also states a range down to -4 °F. Baskets and dividers eat some of it, so think in lunch boxes and milk cartons, not just in cans.

What it has going for it

What changes on your trips

21 qt, per the listing. A long weekend for two, or the drinks and lunches of a family day out, without an ice bag in sight. Our capacity guide turns that number into meals.

-4 °F to 68 °F, stated. Cold enough to run it as a freezer, so ice packs and frozen meals are on the menu. A compressor holds that setting whatever the cabin heat, within the limits in the manual. Put a thermometer in anyway; our camping food guide says why.

3-level battery protection. It cuts the fridge off before your starter battery runs too low, with a low, medium or high threshold to pick. Handy overnight, though it doesn't tell you how much charge is left. Our battery protection guide explains the settings.

Weekend trips or a week off-grid?

For weekend trips, 21 qt holds drinks and food until the next grocery stop.

For a week off-grid, battery protection looks after the starter battery when the car sits for days.

On balance it shines on short trips; a week off-grid takes more power planning.

Great for you if…

You want a fridge that fits behind the seats
You want frozen food to stay frozen, not just cold
You worry about a flat car battery in the morning

Skip it if…

You want to run it from a wall socket too: the listing we read names no AC power
You want to set the temperature from your phone: the listing names no app

What Setpower promises

The seller states, word for word, in the Setpower MC20 21 Qt listing:

If you have any questions about the car fridge, please reach out to SetPower, we will help you as soon as possible.
The MC20 plug in cooler chills from temperature (77°F/25°C) to (32°F/0°C) in just 15 minutes, reaching its lowest temp of -4°F/-20°C in about an hour.

Their words and their figures, not our measurements.

Capacity, cooling and what's in the box

What the Setpower MC20 21 Qt listing names:

21 qt of stated capacity
Single zone
-4 °F to 68 °F, stated
12/24V DC
Battery protection
1-year warranty

That is the seller's promise, not ours. Keep the receipt with the manual.

Measure the spot in the car with the luggage in and the lid open before the box arrives.

Price and cost per quart of stated capacity

$159.99 Price on Sep 30, 2026 · may have changed

At the price on Sep 30, 2026, each stated quart of capacity costs about $7.62. That puts it in the pricier third of the 65 12V fridges we have a price for.

Only a rough yardstick: zones, battery, app and warranty count as much as the size.

The button opens the exact listing (ASIN B0CTZSY528), where today's price, stock and seller apply.

A better fit for your trips?

Need room for longer trips? The ICECO VL60 Dual-Zone (9.3/10) states 60 L (63.4 qt).

Want fresh and frozen at once? The ICECO GO20 Dual-Zone (7.8/10) has two independent zones, per its listing.

Want to set it from your phone? The EUHOMY 19 Qt Car Fridge (7.7/10) lists app control.

Our take

The verdict

Our favourite thing about the Setpower MC20 21 Qt is 21 qt inside, closely followed by real freezer temperatures. 129 buyers give it 4.5/5, which is a solid sign. Honestly, the catch: no AC power named, while most picks here run from the wall as well. We'd pick it if you want a fridge that fits behind the seats; otherwise, put it next to the Alpicool 28 Qt Car Fridge first.

Check the price on Amazon ↗Affiliate link · price and stock on AmazonAll portable 12v fridges →

Living with it

The night before

Run it from the car or a power station for a while before you load it, then load cold food, not warm. A pre-cooled fridge works less hard on the road.

On the road

Plug it into a 12V or 24V socket and set the battery protection, and open the lid as little as you can stand on a hot day.

At camp

Keep it in the shade, leave the vents breathing and keep a thermometer inside. Our cleaning guide covers the wipe-down after the trip.

What buyers say

Buyers give it 4.5/5, a strong record, right on our ranked picks' 4.5 average. 129 reviews is a fair sample, enough for the average to mean something.

The numbers

Buyer rating: 4.5/5
Reviews: 129
Ranked picks' average: 4.5/5

The one thing we'd check first

Before you order the Setpower MC20 21 Qt: check the socket, because a 21 qt fridge on a car socket needs that socket to stay live with the ignition off.

Before you buy

The space

Measure the spot with the luggage in and the lid fully open, and leave room around the vents. Our fridge fit planner runs the numbers.

The socket

Switch the ignition off, plug a phone charger into the socket and see whether it still charges. Then decide on a battery cut-off. Our power connections guide has the checklist.

The food

A display shows a setting, not the temperature of every container, so keep a cheap fridge thermometer inside. Our camping food guide explains why.

The paperwork

The listing states a 1-year warranty. Look up who handles the warranty, and keep the receipt with the manual.

How it compares

How the Setpower MC20 21 Qt stacks up against the closest alternative, the Alpicool 28 Qt Car Fridge.

Criterion	Setpower MC20 21 Qt	Alpicool 28 Qt Car Fridge
Our rating	6.5/10	6.5/10
Stated capacity	21 qt	28 qt
Noise (stated)	42 dB	45 dB
Buyer reviews	129 · 4.5/5	73 · 4.5/5

Both score 6.5/10. The Alpicool 28 Qt Car Fridge adds more room (28 qt), while the Setpower MC20 21 Qt brings a quieter stated figure (42 dB).

Compare side by side ↗See the Alpicool 28 Qt Car Fridge review →

Frequently asked questions

Is the Setpower MC20 21 Qt any good?

We rate it 6.5/10 (good). It is based on 129 buyer reviews averaging 4.5/5 and the specifications stated in the listing.

What capacity and features does the Setpower MC20 21 Qt state?

Its listing states 21 qt of capacity. Those are the seller's figures, not our measurements: how fast it cools, how much it draws and how loud it hums depend on the heat outside, the load and the setting.

What should I check before buying the Setpower MC20 21 Qt?

Measure the space with the lid fully open and leave room around the vents. Then check the outside dimensions in the manual, the 12/24V DC and AC cords in the box, the battery protection settings and whether your car's socket stays live with the ignition off. Our fridge fit planner runs the space check for you.

What do you get with the Setpower MC20 21 Qt?

Its listing states 21 qt of stated capacity, a range down to -4 °F, 3-level battery protection and a stated 42 dB. These are the seller's figures, not our measurements: how quickly it cools in your car on a hot day and how loud it hums at night can't be read from a listing.

What should I check before ordering the Setpower MC20 21 Qt?

The space: measure the spot with the luggage in and the lid fully open, and leave room around the vents. Our fridge fit planner runs the numbers. The socket: switch the ignition off, plug a phone charger into the socket and see whether it still charges. Then decide on a battery cut-off. Our power connections guide has the checklist. The food: a display shows a setting, not the temperature of every container, so keep a cheap fridge thermometer inside. Our camping food guide explains why. The paperwork: the listing states a 1-year warranty. Look up who handles the warranty, and keep the receipt with the manual.

Where can I buy the Setpower MC20 21 Qt?

We link to the exact listing on Amazon, where today's price, stock and seller apply. It is an affiliate link, and it has no effect on the rating.

Have you used the Setpower MC20 21 Qt yourselves?

No, we haven't used it ourselves. Everything on this page comes from its listing and 129 buyer reviews, read line by line and weighed with our published formula.

Keep comparing

If the Setpower MC20 21 Qt hasn't sold you yet, see where it ranks, read the guides that feature it or browse all portable 12v fridges.

Read this before you buy

How to choose a 12V fridge for the way you travel →Portable fridge capacity: plan meals and usable space →Portable fridge battery protection: what a cutoff tells you →

Portable 12V fridges ↗All Setpower products Comparison tool All product reviews