How long will the EcoFlow DELTA 3 run a chest freezer?

About 33 hours from a full charge. A chest freezer averages about 26 W (80 W running, on about 33% of the time), and the 1,024 Wh battery gives about 870 Wh after inverter losses. That is 3% of the battery an hour.

Will the EcoFlow DELTA 3 start a chest freezer?

Yes. It needs about 700 W for a moment when the compressor starts, and the EcoFlow DELTA 3 is rated for 3,600 W surge, 5.1 times that. Avoid starting other motors at the same moment.

How much of the battery does a chest freezer use in a day?

About 634 Wh a day (26 W × 24 hours), 73% of the 870 Wh the EcoFlow DELTA 3 can deliver.

EcoFlow · Will it run?

Can the EcoFlow DELTA 3 run a chest freezer (7 cu ft)?

Published October 12, 2026

Short answerYes

Yes. The EcoFlow DELTA 3 runs a chest freezer for about 33 hours from a full charge. It needs about 700 W for a moment when the compressor starts, well within the 3,600 W surge rating, then about 80 W while running against 1,800 W continuous.

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Key numbers

Runtime: 33 hrs; from a full charge
Battery used per hour: 3%; at 26 W average

Chest freezer (7 cu ft)

Running: 80 W; 50–150 W range
Start-up: 700 W
Average: 26 W; on 33% of the time

EcoFlow DELTA 3

Battery: 1,024 Wh; about 870 Wh usable
Output: 1,800 W; continuous
Surge: 3,600 W; start-up peak

How we worked it out: 1,024 Wh × 0.85 ÷ 26 W average (80 W × 0.33 duty) = about 33 hours. The 0.85 covers inverter and battery losses. We do not test units ourselves; the numbers come from the official spec sheets and typical device draws. How we pick

EcoFlow DELTA 3

1,024 Wh · 1,800 W output · 3,600 W surge · 27.6 lb

Full specs and runtimes

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What else the EcoFlow DELTA 3 runs

One device at a time, from a full charge.

Other power stations for a chest freezer

The nearest sizes that also run it.

Keep going

Real runtime depends on the model you own, room temperature and battery age. The 33 hours above is an estimate, not a measured result.

Common questions

How long will the EcoFlow DELTA 3 run a chest freezer?: About 33 hours from a full charge. A chest freezer averages about 26 W (80 W running, on about 33% of the time), and the 1,024 Wh battery gives about 870 Wh after inverter losses. That is 3% of the battery an hour.
Will the EcoFlow DELTA 3 start a chest freezer?: Yes. It needs about 700 W for a moment when the compressor starts, and the EcoFlow DELTA 3 is rated for 3,600 W surge, 5.1 times that. Avoid starting other motors at the same moment.
How much of the battery does a chest freezer use in a day?: About 634 Wh a day (26 W × 24 hours), 73% of the 870 Wh the EcoFlow DELTA 3 can deliver.