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

About 5 days from a full charge. A chest freezer averages about 26 W (80 W running, on about 33% of the time), and the 4,096 Wh battery gives about 3,482 Wh after inverter losses. That is 0.8% of the battery an hour.

Will the EcoFlow DELTA Pro 3 start a chest freezer?

Yes. It needs about 700 W for a moment when the compressor starts, and the EcoFlow DELTA Pro 3 is rated for 8,000 W surge, 11.4 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), 18% of the 3,482 Wh the EcoFlow DELTA Pro 3 can deliver.

EcoFlow · Will it run?

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

Published October 12, 2026

Short answerYes

Yes. The EcoFlow DELTA Pro 3 runs a chest freezer for about 5 days from a full charge. It needs about 700 W for a moment when the compressor starts, well within the 8,000 W surge rating, then about 80 W while running against 4,000 W continuous.

Add your other devices

Key numbers

Runtime: 5 days; from a full charge
Battery used per hour: 0.8%; 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 Pro 3

Battery: 4,096 Wh; about 3,482 Wh usable
Output: 4,000 W; continuous
Surge: 8,000 W; start-up peak

How we worked it out: 4,096 Wh × 0.85 ÷ 26 W average (80 W × 0.33 duty) = about 5 days. 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 Pro 3

4,096 Wh · 4,000 W output · 8,000 W surge · 113.5 lb

Full specs and runtimes

Check price on Amazon Check price at EcoFlow

We may earn a commission if you buy through these links. It doesn’t change your price. How we make money

What else the EcoFlow DELTA Pro 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 5 days above is an estimate, not a measured result.

Common questions

How long will the EcoFlow DELTA Pro 3 run a chest freezer?: About 5 days from a full charge. A chest freezer averages about 26 W (80 W running, on about 33% of the time), and the 4,096 Wh battery gives about 3,482 Wh after inverter losses. That is 0.8% of the battery an hour.
Will the EcoFlow DELTA Pro 3 start a chest freezer?: Yes. It needs about 700 W for a moment when the compressor starts, and the EcoFlow DELTA Pro 3 is rated for 8,000 W surge, 11.4 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), 18% of the 3,482 Wh the EcoFlow DELTA Pro 3 can deliver.