Anker SOLIX F3800 Plus: Runtime & Specs

By Hicham M. · Specs from Anker SOLIX's published documents, as of September 2026 · How we calculate

The Anker SOLIX F3800 Plus is a 3,840 Wh LiFePO4 power station with 6,000 W of continuous AC output, including 240 V. It runs a typical full-size fridge for about 2.3 days.

Capacity3,840 WhLiFePO4

Output6,000 Wsurge not published

Solar input3,200 W11–165 V

Weight136.7 lbexpands to 26,880 Wh

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Our notes

The F3800 Plus is one of the few portable stations that puts out 240 V on its own, so it can run a 240 V well pump directly, about four days for a typical 1/2 HP submersible on the base 3,840 Wh battery. It has an L14-30R outlet for connecting to a home transfer switch or generator inlet, six 20 A outlets and a TT-30R, and 6,000 W of continuous output.

The Plus differs from the regular F3800 in a few ways. Its solar inputs accept up to 165 V (the F3800 stops at 60 V), for 3,200 W in total instead of 2,400 W. It swaps the F3800's 14-50R outlet for a TT-30R. And the F3800 has a published 9,000 W surge rating, where the Plus has none.

At 136.7 lb it's a wheeled appliance rather than something you carry. It expands to 26,880 Wh with six BP3800 batteries. Wall charging is capped at 1,800 W, so a full charge from an outlet takes a couple of hours or more.

Simulated runtimes (not measured)

Nobody tested this unit for this page. These figures come from a computer simulation of the F3800 Plus, and they are estimates. The plain runtime table below divides energy by average draw at 85% efficiency. The simulation also charges the battery for the power the inverter burns just by being switched on, which is why small loads come out shorter. Where we have measured a unit, the measurement is shown separately and labeled as measured.

Simulated runtimes for the Anker SOLIX F3800 Plus
Device	Spec-sheet math	Simulated, typical	Likely range	Simulated at 0 °C
Wi-Fi router + modem	9.1 days	2.4 days	47 hours to 3.2 days	2.1 days
CPAP (no humidifier)	4.5 days	47 hours	39 hours to 2.4 days	40 hours
Starlink Standard	36 hours	26 hours	23 hours to 29 hours	22 hours
Refrigerator (full-size, ENERGY STAR)	2.3 days	35 hours	30 hours to 39 hours	29 hours

Nonstop runtime from full to battery cutoff. Likely range = middle 80% of 200 simulated runs with the uncertain inputs varied. The inverter idle draw is assumed, not published: we assumed about 44 W for this model, varied from 26 to 66 W. If the real figure is lower, real runtimes land closer to the spec-sheet column.

How this was simulated

The battery is stepped down every 2 minutes until it reaches cutoff, for 200 runs per device. Results are seeded, so the page shows the same numbers on every build.
Battery draw = load + inverter idle draw + 4–8% of the load + a loss that rises with load squared (4% at full output).
Usable capacity = 92–98% of rated Wh, for protection cutoff and aging.
At 0 °C, 80–90% of that capacity is assumed available.
Fridges cycle on and off every 30–50 minutes at the share of the time set by their average draw. The inverter idle draw continues while the compressor is off.
Devices that exceed this model's output or surge rating are left out. Loads are US 120 V devices.

These ranges are assumptions about a typical unit. They are not manufacturer figures for the Anker SOLIX F3800 Plus. How we calculate · How we use AI

How long will the F3800 Plus run your appliances?

Nonstop runtime for one device at a time, using typical US wattages and 85% inverter efficiency. Devices marked ✕ can't run on this model.

Estimated runtime by appliance for the Anker SOLIX F3800 Plus
Device	Avg draw	Runtime
LED light bulb	9 W	15.1 days
Phone charging	10 W	14.4 days
Wi-Fi router + modem	15 W	9.1 days
Laptop	50 W	2.7 days
CPAP (no humidifier)	30 W	4.5 days
CPAP with heated humidifier	60 W	2.3 days
Starlink Standard	90 W	36 hours
TV	100 W	33 hours
Mini fridge	29 W	4.7 days
Refrigerator	58 W	2.3 days
Chest freezer	29 W	4.7 days
Sump pump (1/3 HP)	160 W	20 hours
Sump pump (1/2 HP)	210 W	16 hours
Window AC	225 W	15 hours
Drip coffee maker	1,000 W	3.3 hours
Microwave	1,500 W	2.2 hours
Space heater	750 W	4.4 hours
Well pump	33 W	4.1 days

Surge? = this model has no published surge rating, so starting motors and compressors may or may not work. Fridges, freezers, pumps and AC units cycle on and off, so we use their average draw. Want a mix of devices on a schedule? Use the runtime calculator.

The F3800 Plus in action

Anker SOLIX's own video, so expect a sales pitch. It loads from YouTube only when you press play.

**Anker SOLIX F3800 Plus**Official video from Anker SOLIX, plays from YouTube

What the F3800 Plus can't power

Every appliance in our wattage chart is within its output limits.

Solar charging time

Hours of good sun to charge from empty, assuming panels deliver 75% of their rating and one array per 1,600 W solar input.

Panels	Power in	Hours of sun
100 W of panels	75 W	51 hours
200 W of panels	150 W	26 hours
400 W of panels	300 W	13 hours
1,600 W of panels	1,200 W	3.2 hours
3,200 W of panels (split across inputs)	2,400 W	1.6 hours

Check panel voltage and wiring with the solar charging calculator.

Full specifications

Battery capacity	3,840 Wh
Amp-hours at 12 V (converted) How we convert	320 Ah (300 Ah at 12.8 V)
Battery chemistry LFP vs NMC	LiFePO4 (LFP)
Continuous AC output	6,000 W
Surge (peak) output	Not published
Boost mode	None listed
AC voltage	120V/240V
AC outlets	8
USB-C ports	—
USB-A ports	—
12 V car outlet	Yes
Max solar input	3,200 W (1,600 W per input)
Solar voltage range	11–165 V
Solar max current	17 A
Max AC charging power	1,800 W
AC charging time (maker claim)	100% in 1.5 h with a generator
Expandable	Yes, up to 26,880 Wh
UPS / EPS switchover What this means	20 ms
Cycle life What this means	3,000 cycles
Weight	136.7 lb
Warranty	5 years

Notes: A1790P. 6× NEMA 5-20R + TT-30R + L14-30R (no 14-50R). 2 solar ports × 1,600W. USB port counts not published. 6,000W bypass input. Up to 6× BP3800; 53.8kWh with two units.

Specs from Anker SOLIX's published documents, as of September 2026. Found an error? Tell us.

Sources

Similar power stations

Questions

How long will the Anker SOLIX F3800 Plus run a refrigerator?

About 2.3 days for a typical ENERGY STAR full-size fridge averaging 58 W, assuming 85% inverter efficiency. Older or larger fridges use more. Try your own numbers.

Can the Anker SOLIX F3800 Plus run a microwave?

Yes. A typical 1,000 W microwave pulls about 1,500 W from the outlet, within its 6,000 W continuous output. A full battery gives about 2.2 hours of cooking.

How many amp-hours is the Anker SOLIX F3800 Plus?

The Anker SOLIX F3800 Plus works out to about 320 Ah at 12 V, or 300 Ah at 12.8 V, the nominal voltage of a 12 V LiFePO4 battery. Both are our conversion of Anker SOLIX's 3,840 Wh rating: amp-hours = watt-hours ÷ volts. The battery inside may run at a different voltage, so an amp-hour figure in a manual or on a product listing can look very different for the same energy. For scale, a 12 V 100 Ah LiFePO4 battery holds 1,280 Wh, so this model holds about as much as 3 of them. How we convert amp-hours.

How long does the Anker SOLIX F3800 Plus take to charge?

Anker SOLIX's published charging claim: “100% in 1.5 h with a generator”. Max AC charging power is 1,800 W. With solar, it accepts up to 3,200 W (1,600 W per input). With 3,200 W of panels that's roughly 1.6 hours of good sun from empty.

Is the Anker SOLIX F3800 Plus expandable?

Yes, up to 26,880 Wh with Anker SOLIX's extra batteries.

Does the Anker SOLIX F3800 Plus work as a UPS?

Anker SOLIX lists a 20 ms switchover time, so it can keep devices like routers and computers running when the power drops. Check that your specific device tolerates the switch before relying on it for anything critical.