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Koolatron

Koolatron Mini Fridge 6 Can

  • Capacity: 0.1 cu ft
  • Size: 0.1 cu ft
  • Refrigerator Net Capacity: 0.1 cu ft
  • Fresh Food Capacity: 0.1 cu ft

Last refreshed Jun 15, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.

Our verdict

A cute dual-function cooler and warmer that most owners like while it works, though several report it quitting well inside the two-year mark.

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ASIN: B07VCGW3SVModel: KRT04-GCategory: Compact Refrigerators

Overview

The Koolatron KRT04-G is the dual-mode version of Koolatron's 4 liter retro mini fridge, cooling to about 32°F below room temperature or switching to a warm mode up to 135°F. It holds six 12 oz cans and runs on either a 110V wall outlet or a 12V car plug.

Where the KRT04-P only chills, this G model adds a heat function, useful for keeping a bottle warm rather than just cold.

  • 4 liter capacity, holds six 12 oz cans
  • Cools to about 32°F below room temperature or warms to 135°F
  • 110V AC and 12V DC power for home or vehicle use
  • Retro rounded shell with metallic hinges and twist handle

Who it's for

Good for someone who wants one small unit that can both chill drinks or cosmetics and warm something like a bottle, kept on a desk, dorm shelf, or bathroom counter. It is not sized or intended for real food storage.

Pros and cons

Pros
  • Switches between cooling and a warm mode up to 135°F
  • Fits neatly on a desk, dorm shelf, or bathroom counter
  • Twist latch and retractable handle for easy carrying

Performance notes

The same CFC-free thermoelectric core as the cooling-only model runs in reverse for the warm setting, moving heat into the cabin instead of out of it, up to about 135°F. Cooling performance is otherwise similar: fast enough for six cans, but governed by room temperature rather than a set target.

Specifications

BrandKoolatron
ModelKRT04-G
Dimensions & fit
Size0.1 cu ftlower than 82% of 35 compact refrigerators
Door OrientationRight
Capacity & performance
Capacity0.1 cu ftlower than 83% of 85 compact refrigerators
Refrigerator Net Capacity0.1 cu ftlower than 82% of 72 compact refrigerators
Fresh Food Capacity0.1 cu ftlower than 84% of 65 compact refrigerators
Cooling MethodThermoelectric
Adjustable Temperature ControlYes
Defrost System TypeManual
Power & efficiency
Power SourceCorded Electric, DC
Power Plug TypeType B - 3 Pin (North American)
Voltage220 voltshigher than 95% of 89 compact refrigerators
Annual Energy Consumption235 Kilowatt Hours
Construction & materials
Number Of Shelves2
Door Shelf Count1
ColorAqua
Compatibility & installation
Installation TypeCountertop
Smart Home CompatibilityNot Smart Home Compatible
Included components
Unit Count1
Warranty & support
Warranty Description90 days
Other details
ConfigurationCompact Freezerless
Has Convertible FreezerNo
Form FactorCompact
Number of Doors1
Number Of Racks2
Number of Sections1
Lock TypeKey
Is ElectricYes
Is Product CordlessNo
Is CustomizableNo
RefrigerantR-600A Or R-290
BEE Star RatingNot Rated
PatternSolid
Specification MetETL
Additional FeaturesManual

Closest rivals on specs

Setpower FC20 Portable Car Refrigerator 21 Qt
  • Capacity 0.1 vs 0.7 cu ft (-86%)
  • Fresh Food Capacity 0.1 vs 0.7 cu ft (-86%)
Dometic CFX2 Series Electric Cooler and Freezer
  • Capacity 0.1 vs 1 cu ft (-90%)
  • Size 0.1 vs 1 cu ft (-90%)
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Frequently asked questions

What is the difference between the KRT04-G and KRT04-P?

The G model adds a warm mode up to 135°F on top of cooling; the P model cools only.

How long does it last?

Several owners got two or more years of use, while others report failure around the one-year mark.