Watts

Typical figures for this type, from the sources at the foot of this page. Watts vary by model and age. Check the label on your own appliance and enter it for an exact answer.

Running, typical
75 W
Running, low to high
50 W to 100 W
Starting
500 W400 W to 600 W, 6.7 times running
Energy per day
0.67 kWh0.56 to 0.91 kWh; the compressor cycles on and off
Typical use a day
24 hthe calculator starts from this, and you can change it
Average draw while on
27.9 W
Voltage
120 V

The math

Worked with the typical figure, as the calculator does it.

  1. Output75 W running, so the station's continuous output must be at least 75 W.
  2. Surge500 W to start, so its surge rating must be at least 500 W.
  3. Average draw0.67 kWh a day × 1,000 ÷ 24 h = 27.9 W, because it cycles on and off.
  4. A typical day27.9 W × 24 h = 670 Wh a day.
  5. 8 hours of running27.9 W × 8 h = 223 Wh usable, ÷ 0.85 = 263 Wh of rated capacity.
  6. 24 hours of running27.9 W × 24 h = 670 Wh usable, ÷ 0.85 = 788 Wh of rated capacity.
  7. On the BLUETTI Elite 100 mini1,005 Wh × 0.85 = 854 Wh usable, ÷ 27.9 W = 30.6 h.

Stations that run it

Every power station in the data with this appliance alone plugged in, at 85% efficiency. Type the running watts from your own label and the table works it out again.

Add it to the runtime calculator with the rest of your list

What moves the number

A compact fridge cycles like a full size one, so its daily energy sets the runtime: 0.67 kWh a day for a typical certified model, 0.56 to 0.91 kWh across them. Thermoelectric minis are a different, less efficient kind; see the thermoelectric cooler. Its start of about 500 W is modest.

Questions

How many watts does a mini fridge (compact refrigerator) use?
About 75 W while running, from 50 W to 100 W across the models in our sources. It needs about 500 W for a moment at start. Over a day it uses about 0.67 kWh, because it cycles on and off. Watts vary by model and age. Check the label on your own appliance and enter it for an exact answer.
Can a portable power station run a mini fridge (compact refrigerator)?
Yes. 53 of the 54 power stations in the Enough Watts data set can power it on its own. It takes at least 75 W of continuous output and a surge rating of 500 W.
How long will a power station run a mini fridge (compact refrigerator)?
It depends on the battery. At 85% efficiency the smallest station that powers it, the Jackery Explorer 240 v2 (256 Wh), gives about 7.8 h. The largest, the EcoFlow DELTA Pro Ultra X (12,288 Wh), gives about 15.6 days.
Why does a mini fridge (compact refrigerator) need a high surge rating?
Its motor draws about 500 W for a moment at start, 6.7 times its 75 W running figure. A station whose surge rating is below that cannot start it, even when the continuous output is enough. 53 of the 54 stations pass that check.

Sources

Researched from these pages, then checked against them a second time.

  1. Generator Wattage Chart: Common Appliances & Tools - Champion Power Equipment generator maker guide, checked
  2. ENERGY STAR Certified Residential Refrigerators (data.energystar.gov dataset p5st-her9) government, checked

We read published figures and do the math; we do not measure appliances. The methodology states every formula on this page. Capacities are rated watt hours: 1,000 Wh rated gives 850 Wh usable at the default.