How long will the EcoFlow RIVER 3 Plus run a laptop?

About 6 hours from a full charge. A laptop averages about 39 W (65 W running, on about 60% of the time), and the 286 Wh battery gives about 243 Wh after inverter losses. That is 16% of the battery an hour.

Can I run other things at the same time?

Yes, up to about 535 W more of the 600 W output. Each thing you add shares the same battery, so the 6 hours for a laptop gets shorter.

How many days of normal use is that?

About 1 day, if you use a laptop about 6 hours a day and nothing else is plugged in.

EcoFlow · Will it run?

Can the EcoFlow RIVER 3 Plus run a laptop (13-16 in)?

Published October 16, 2026

Short answerYes

Yes. The EcoFlow RIVER 3 Plus runs a laptop for about 6 hours from a full charge. At about 39 W on average it uses 16% of the battery an hour, and the 600 W output leaves plenty of room for more.

Add your other devices

Key numbers

Runtime: 6 hrs; from a full charge
Battery used per hour: 16%; 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 RIVER 3 Plus

Battery: 286 Wh; about 243 Wh usable
Output: 600 W; continuous
Surge: 1,200 W; start-up peak

How we worked it out: 286 Wh × 0.85 ÷ 39 W average (65 W × 0.6 duty) = about 6 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 RIVER 3 Plus

286 Wh · 600 W output · 1,200 W surge · 10.4 lb

Full specs and runtimes

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What else the EcoFlow RIVER 3 Plus 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 6 hours above is an estimate, not a measured result.

Common questions

How long will the EcoFlow RIVER 3 Plus run a laptop?: About 6 hours from a full charge. A laptop averages about 39 W (65 W running, on about 60% of the time), and the 286 Wh battery gives about 243 Wh after inverter losses. That is 16% of the battery an hour.
Can I run other things at the same time?: Yes, up to about 535 W more of the 600 W output. Each thing you add shares the same battery, so the 6 hours for a laptop gets shorter.
How many days of normal use is that?: About 1 day, if you use a laptop about 6 hours a day and nothing else is plugged in.