How long will a 1000Wh power station run a Mini Fridge (45L)?

A 1000Wh power station runs a mini fridge (45l) for roughly 1.5 days in real use, because compressor-based appliances only run about 40% of the time. At a continuous 60W draw it would be about 14 h.

How long will a 2000Wh power station run a Mini Fridge (45L)?

A 2000Wh power station runs a mini fridge (45l) for roughly 3.0 days in real use, because compressor-based appliances only run about 40% of the time. At a continuous 60W draw it would be about 1.2 days.

How is Mini Fridge (45L) runtime calculated?

Runtime = usable battery energy ÷ power draw. Usable energy is about 85% of the rated capacity after depth-of-discharge and inverter losses. A Mini Fridge (45L) draws about 60W, but as a compressor load it only runs ~40% of the time, so real-world runtime is longer than the continuous figure.

How long will a portable power station run a Mini Fridge (45L)?

A Mini Fridge (45L) draws about 60W. As a compressor-based appliance it typically runs only about 40% of the time, so its real average draw is closer to 24W. The table below shows both the continuous figure and the more realistic duty-cycle runtime.

Power Station	Continuous	Real (~40% duty)
300 Wh	4.3 h	11 h
500 Wh	7.1 h	18 h
1,000 Wh	14 h	1.5 days
1,500 Wh	21 h	2.2 days
2,000 Wh	1.2 days	3.0 days
3,000 Wh	1.8 days	4.4 days
5,000 Wh	3.0 days	7.4 days

Estimates use ~85% usable capacity (depth of discharge + inverter losses). Actual runtime varies with temperature, load variation, and device efficiency.

Power stations that fit a Mini Fridge (45L)

GRECELL T1000

1,024Wh · 1,000W AC · $399

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FlashFish UA550

520Wh · 600W AC · $229

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TALLPOWER V600

600Wh · 600W AC · $269

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