How cold does a thermoelectric cooler get?

Most cool to a certain number of degrees below the air around them rather than to a set temperature. On very hot days, the contents will not get as cold as they would in a fridge.

Can a thermoelectric cooler run while the car is off?

It can, but it may drain the car battery. Many people unplug it when the engine is off or choose a model that shuts off when the battery runs low.

This idea is part of our coolers guide, where you can compare every kind side by side.

Gift idea

Thermoelectric portable car cooler

Keeps food and beverages cool or warm on road trips, commutes, or during long drives without the need for ice.

A thermoelectric portable car cooler plugs into a vehicle outlet to keep food and drinks cool, and many models can warm them too. It suits commuters, road trippers and anyone who spends long hours driving and would rather skip buying bags of ice.

Good for

Usually over $100Coolers

♡ Add to my wish list

Choose Canada or the United States for local pricing. · affiliate link

Why thermoelectric portable car cooler make a good gift

It works without ice, so melted water never soaks the sandwiches on long drives.
Many models switch between cooling and warming, so lunches can stay warm in winter too.
It fits well in a back seat or trunk for road trips, commutes and cottage drives.

What to look for

Check that both a 12-volt car cord and a wall plug adapter are included.
Measure the space in the vehicle and make sure the cooler holds tall bottles standing up.
Check how much power it uses and whether it has a low-battery setting for car use.

Kinds worth searching

Each button opens a narrow Amazon search in your store. Compare a few listings before you choose.

12-volt car cooler
Cooler and warmer combo
Small car cooler

Questions people ask

How cold does a thermoelectric cooler get?: Most cool to a certain number of degrees below the air around them rather than to a set temperature. On very hot days, the contents will not get as cold as they would in a fridge.
Can a thermoelectric cooler run while the car is off?: It can, but it may drain the car battery. Many people unplug it when the engine is off or choose a model that shuts off when the battery runs low.

Keep browsing

More coolers

See all

Representative photo-style image of compact insulated lunch cooler — generated, not a specific product

Gift ideaUsually $15–$25

Thermoelectric portable car cooler

Why thermoelectric portable car cooler make a good gift

What to look for

Kinds worth searching

Questions people ask

More coolers

Compact insulated lunch cooler

Decorative party beverage tub

Durable hard-sided outdoor cooler

Hands-free backpack cooler