Anker SOLIX F3800: Runtime & Specs
By Hicham M. · Specs from Anker SOLIX's published documents, as of September 2026 · How we calculate
The Anker SOLIX F3800 is a 3,840 Wh LiFePO4 power station with 6,000 W of continuous AC output and a 9,000 W surge rating, including 240 V. It runs a typical full-size fridge for about 2.3 days.
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Simulated runtimes (not measured)
Nobody tested this unit for this page. These figures come from a computer simulation of the F3800, 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.
| Device | Spec-sheet math | Simulated, typical | Likely range | Simulated at 0 °C |
|---|---|---|---|---|
| Wi-Fi router + modem | 9.1 days | 2.5 days | 47 hours to 3.2 days | 2.1 days |
| CPAP (no humidifier) | 4.5 days | 46 hours | 39 hours to 2.5 days | 39 hours |
| Starlink Standard | 36 hours | 26 hours | 23 hours to 29 hours | 22 hours |
| Refrigerator (full-size, ENERGY STAR) | 2.3 days | 33 hours | 30 hours to 40 hours | 28 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. How we calculate · How we use AI
How long will the F3800 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.
| Device | Avg draw | Runtime | Bar |
|---|---|---|---|
| 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 |
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.
What the F3800 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 1,200 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 |
| 1,200 W of panels | 900 W | 4.3 hours |
| 2,400 W of panels (split across inputs) | 1,800 W | 2.1 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 | 9,000 W |
| Boost mode | None listed |
| AC voltage | 120V/240V |
| AC outlets | 8 |
| USB-C ports | 3 (up to 100 W) |
| USB-A ports | 2 |
| 12 V car outlet | Yes |
| Max solar input | 2,400 W (1,200 W per input) |
| Solar voltage range | 11–60 V |
| Solar max current | 27 A |
| Max AC charging power | 1,800 W |
| AC charging time (maker claim) | 100% in 2.7 h (1,800W AC) |
| Expandable | Yes, up to 26,880 Wh |
| UPS / EPS switchover What this means | 20 ms |
| Cycle life What this means | 3,000 cycles (to 80%) |
| Weight | 132.3 lb |
| Warranty | 5 years |
Notes: A1790. 6× NEMA 5-20R + L14-30R + 14-50R. 2 solar ports × 1,200W; 27A on firmware ≥2.1.1 (25A earlier). Up to 6× BP3800 per unit; 53.8kWh with two units. Cycle % not stated.
Specs from Anker SOLIX's published documents, as of September 2026. Found an error? Tell us.
Sources
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