How long will the EcoFlow DELTA Pro 3 run a laptop?

About 4 days from a full charge. A laptop averages about 39 W (65 W running, on about 60% of the time), and the 4,096 Wh battery gives about 3,482 Wh after inverter losses. That is 1.1% of the battery an hour.

Can I run other things at the same time?

Yes, up to about 3,935 W more of the 4,000 W output. Each thing you add shares the same battery, so the 4 days for a laptop gets shorter.

How many days of normal use is that?

About 14 days, if you use a laptop about 6 hours a day and nothing else is plugged in.

EcoFlow · Will it run?

Can the EcoFlow DELTA Pro 3 run a laptop (13-16 in)?

Published October 17, 2026

Short answerYes

Yes. The EcoFlow DELTA Pro 3 runs a laptop for about 4 days from a full charge. At about 39 W on average it uses 1.1% of the battery an hour, and the 4,000 W output leaves plenty of room for more.

Add your other devices

Key numbers

Runtime: 4 days; from a full charge
Battery used per hour: 1.1%; at 39 W average

Laptop (13-16 in)

Running: 65 W; 30–140 W range
Start-up: 65 W
Average: 39 W; on 60% 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 ÷ 39 W average (65 W × 0.6 duty) = about 4 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

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What else the EcoFlow DELTA Pro 3 runs

One device at a time, from a full charge.

Other power stations for a laptop

The nearest sizes that also run it.

Keep going

Real runtime depends on the model you own, room temperature and battery age. The 4 days above is an estimate, not a measured result.

Common questions

How long will the EcoFlow DELTA Pro 3 run a laptop?: About 4 days from a full charge. A laptop averages about 39 W (65 W running, on about 60% of the time), and the 4,096 Wh battery gives about 3,482 Wh after inverter losses. That is 1.1% of the battery an hour.
Can I run other things at the same time?: Yes, up to about 3,935 W more of the 4,000 W output. Each thing you add shares the same battery, so the 4 days for a laptop gets shorter.
How many days of normal use is that?: About 14 days, if you use a laptop about 6 hours a day and nothing else is plugged in.