Best 12V Plug-In Car Coolers in 2026
The best 12V plug-in thermoelectric car coolers in 2026: Igloo IE24 and IE42, Wagan, Ivation and AooDen compared on capacity, cooling below ambient and heating.
Affiliate disclosure: product links on this page go to Amazon or to the maker's own store. As an Amazon Associate we earn from qualifying purchases, at no extra cost to you; links to makers' own stores earn us nothing. No retailer or brand sees our picks before they are published or has any say in them. How we choose.
The Igloo IE24 is the pick for most drivers: sold by Amazon, it holds 32 cans, cools up to 36 F below ambient and heats to 136 F, on 12V DC or household AC (per the Amazon listing). Need more room? The Igloo IE42 Roller holds 59 cans with the same cooling.
A thermoelectric cooler cools relative to the air around it, so on a 90 F day it stops around 54 F. For real refrigeration in a van, buy a compressor fridge: see best 12V fridges.
Our top picks at a glance
1. Best overall
Igloo IE24 Thermoelectric CoolerCapacity: 32 cans · Cooling: Up to 36 F below ambient · Heating: To 136 F · Power: 12V DC, 100-240V AC
2. Best large
Igloo IE42 Roller Thermoelectric CoolerCapacity: 59 cans · Cooling: Up to 36 F below ambient · Heating: Yes · Power: 12V DC, 100-240V AC
3. Best personal
Wagan EL6206 6 Qt CoolerCapacity: 6 qt · Cooling: About 36 F below ambient · Heating: Yes · Power: 12/24V DC
4. Best with wheels on a budget
AooDen 35 Qt Electric CoolerCapacity: 35 qt · Cooling: 30 to 35 F below ambient · Heating: Yes · Power: 12V DC, 120V AC
5. Best fridge-style cooler
Ivation 25 L Electric CoolerCapacity: 25 L · Cooling: Not stated · Heating: Yes · Power: 12V DC, 110V AC
| Pick | Capacity | Cooling | Heating | Power | Buy |
|---|---|---|---|---|---|
| Igloo IE24 Thermoelectric CoolerBest overall | 32 cans | Up to 36 F below ambient | To 136 F | 12V DC, 100-240V AC | Amazon |
| Igloo IE42 Roller Thermoelectric CoolerBest large | 59 cans | Up to 36 F below ambient | Yes | 12V DC, 100-240V AC | Amazon |
| Wagan EL6206 6 Qt CoolerBest personal | 6 qt | About 36 F below ambient | Yes | 12/24V DC | Amazon |
| AooDen 35 Qt Electric CoolerBest with wheels on a budget | 35 qt | 30 to 35 F below ambient | Yes | 12V DC, 120V AC | Amazon |
| Ivation 25 L Electric CoolerBest fridge-style cooler | 25 L | Not stated | Yes | 12V DC, 110V AC | Amazon |
Best overall
Igloo IE24 Thermoelectric Cooler
For road trips.
- Capacity
- 32 cans
- Cooling
- Up to 36 F below ambient
- Heating
- To 136 F
- Power
- 12V DC, 100-240V AC
Pros
- Sold by Amazon
- AC and DC cords (per the Amazon listing)
Cons
- Cannot freeze
Igloo lists cooling up to 36 F below ambient without ice (per the Amazon listing).
Best large
Igloo IE42 Roller Thermoelectric Cooler
For families.
- Capacity
- 59 cans
- Cooling
- Up to 36 F below ambient
- Heating
- Yes
- Power
- 12V DC, 100-240V AC
Pros
- Wheels and telescoping handle (per the Amazon listing)
Cons
- Bulky
The IE42 rolls on wheels and holds 59 cans (per the Amazon listing).
Best personal
Wagan EL6206 6 Qt Cooler
For one person's lunch and drinks.
- Capacity
- 6 qt
- Cooling
- About 36 F below ambient
- Heating
- Yes
- Power
- 12/24V DC
Pros
- UL listed (per the Amazon listing)
- 1-year warranty (per the Amazon listing)
Cons
- Small
Wagan lists about 36 F below ambient and 12/24V DC (per the Amazon listing).
Best with wheels on a budget
AooDen 35 Qt Electric Cooler
For a large cooler that rolls.
- Capacity
- 35 qt
- Cooling
- 30 to 35 F below ambient
- Heating
- Yes
- Power
- 12V DC, 120V AC
Pros
- Wheels and draw bar (per the Amazon listing)
Cons
- Less cooling than Igloo
AooDen lists 30 to 35 F below ambient and 40 cans of space (per the Amazon listing).
Best fridge-style cooler
Ivation 25 L Electric Cooler
For a small fridge-shaped cooler with a handle.
- Capacity
- 25 L
- Cooling
- Not stated
- Heating
- Yes
- Power
- 12V DC, 110V AC
Pros
- Sold by Amazon
- 1-year warranty (per the Amazon listing)
Cons
- Cooling figure not stated
Ivation lists 110V AC and 12V DC cords and a 1-year warranty (per the Amazon listing).
How we chose
We compared capacity, cooling below ambient, heating and power from the listings.
Thermoelectric vs compressor
A thermoelectric cooler's limit is relative: 36 F below ambient on the Igloo. A compressor fridge sets an absolute temperature; Dometic's CFX3 45 cools as low as -22 C. Dometic also publishes its compressor draw: 1.03 Ah per hour at 32 C ambient for the CFX3 45 and 1.56 Ah per hour for the CFX3 100. Details in thermoelectric vs compressor coolers.
What to skip
Skip thermoelectric coolers for medicine or multi-day trips in heat. Unplug them when the engine is off unless the cooler has low-voltage protection.
Frequently asked questions
Do plug-in car coolers really work?
Yes, within limits: Igloo's thermoelectric models cool up to 36 F below the surrounding air, so they struggle on very hot days.
Can a 12V cooler freeze food?
A thermoelectric cooler cannot. You need a compressor fridge, such as a Dometic or BougeRV, to freeze.
Will a plug-in cooler drain my car battery?
It can if left on with the engine off. Unplug it, or choose a compressor fridge with battery protection.
What is the difference between a cooler and a 12V fridge?
A thermoelectric cooler cools relative to ambient temperature; a compressor fridge holds a set temperature, including freezing.
Can a plug-in cooler keep food warm?
Many can switch to warming: the Igloo IE24 heats to 136 F, per its listing.
Sources
- Dometic CFX3 45, Dometic
- Dometic CFX3 100, Dometic
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