How long will the Anker SOLIX F3800 Plus run a sump pump?

About 41 hours from a full charge. A sump pump averages about 80 W (800 W running, on about 10% of the time), and the 3,840 Wh battery gives about 3,264 Wh after inverter losses. That is 2.5% of the battery an hour.

Will the Anker SOLIX F3800 Plus start a sump pump?

Yes. It needs about 2,100 W for a moment when the pump starts, and the Anker SOLIX F3800 Plus is rated for 9,000 W surge, 4.3 times that. Avoid starting other motors at the same moment.

How much of the battery does a sump pump use in a day?

About 1,920 Wh a day (80 W × 24 hours), 59% of the 3,264 Wh the Anker SOLIX F3800 Plus can deliver.

Anker SOLIX · Will it run?

Can the Anker SOLIX F3800 Plus run a sump pump (1/3 HP)?

Published October 11, 2026

Short answerYes

Yes. The Anker SOLIX F3800 Plus runs a sump pump for about 41 hours from a full charge. It needs about 2,100 W for a moment when the pump starts, well within the 9,000 W surge rating, then about 800 W while running against 6,000 W continuous.

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Key numbers

Runtime: 41 hrs; from a full charge
Battery used per hour: 2.5%; at 80 W average

Sump pump (1/3 HP)

Running: 800 W; 700–1115 W range
Start-up: 2,100 W
Average: 80 W; on 10% of the time

Anker SOLIX F3800 Plus

Battery: 3,840 Wh; about 3,264 Wh usable
Output: 6,000 W; continuous
Surge: 9,000 W; start-up peak

How we worked it out: 3,840 Wh × 0.85 ÷ 80 W average (800 W × 0.1 duty) = about 41 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

Anker SOLIX F3800 Plus

3,840 Wh · 6,000 W output · 9,000 W surge · 136.7 lb

Full specs and runtimes

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What else the Anker SOLIX F3800 Plus runs

One device at a time, from a full charge.

Other power stations for a sump pump

The nearest sizes that also run it.

Keep going

Real runtime depends on the model you own, room temperature and battery age. The 41 hours above is an estimate, not a measured result.

Common questions

How long will the Anker SOLIX F3800 Plus run a sump pump?: About 41 hours from a full charge. A sump pump averages about 80 W (800 W running, on about 10% of the time), and the 3,840 Wh battery gives about 3,264 Wh after inverter losses. That is 2.5% of the battery an hour.
Will the Anker SOLIX F3800 Plus start a sump pump?: Yes. It needs about 2,100 W for a moment when the pump starts, and the Anker SOLIX F3800 Plus is rated for 9,000 W surge, 4.3 times that. Avoid starting other motors at the same moment.
How much of the battery does a sump pump use in a day?: About 1,920 Wh a day (80 W × 24 hours), 59% of the 3,264 Wh the Anker SOLIX F3800 Plus can deliver.