Anker SOLIX F3800: Runtime & Specs

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.

Capacity3,840 WhLiFePO4
Output6,000 W9,000 W surge
Solar input2,400 W11–60 V
Weight132.3 lbexpands to 26,880 Wh

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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.

Estimated runtime by appliance for the Anker SOLIX F3800
DeviceAvg drawRuntimeBar
LED light bulb9 W15.1 days
Phone charging10 W14.4 days
Wi-Fi router + modem15 W9.1 days
Laptop50 W2.7 days
CPAP + humidifier30 W4.5 days
CPAP with heated humidifier + humidifier60 W2.3 days
Starlink Standard90 W36 hours
TV100 W33 hours
Mini fridge29 W4.7 days
Refrigerator58 W2.3 days
Chest freezer29 W4.7 days
Sump pump (1/3 HP)160 W20 hours
Sump pump (1/2 HP)210 W16 hours
Window AC225 W15 hours
Drip coffee maker1,000 W3.3 hours
Microwave1,500 W2.2 hours
Space heater750 W4.4 hours
Well pump33 W4.1 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.

PanelsPower inHours of sun
100 W of panels75 W51 hours
200 W of panels150 W26 hours
400 W of panels300 W13 hours
1,200 W of panels900 W4.3 hours
2,400 W of panels (split across inputs)1,800 W2.1 hours

Check panel voltage and wiring with the solar charging calculator.

Full specifications

Battery capacity3,840 Wh
Battery chemistryLiFePO4 (LFP)
Continuous AC output6,000 W
Surge (peak) output9,000 W
Boost modeNone listed
AC voltage120V/240V
AC outlets8
USB-C ports3 (up to 100 W)
USB-A ports2
12 V car outletYes
Max solar input2,400 W (1,200 W per input)
Solar voltage range11–60 V
Solar max current27 A
Max AC charging power1,800 W
AC charging time (maker claim)100% in 2.7 h (1,800W AC)
ExpandableYes, up to 26,880 Wh
UPS / EPS switchover20 ms
Cycle life3,000 cycles
Weight132.3 lb
Warranty5 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
  1. ankersolix.com/products/f3800
  2. ankersolix.com/f3800-pps
  3. cdn.shopify.com/s/files/1/0493/9834/9974/files/A1790_V4_EN_US__UserGuide…
  4. service.ankersolix.com/article-description/What-are-the-differences-between-F38…

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Questions

How long will the Anker SOLIX F3800 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 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 long does the Anker SOLIX F3800 take to charge?
Anker SOLIX's published charging claim: “100% in 2.7 h (1,800W AC)”. Max AC charging power is 1,800 W. With solar, it accepts up to 2,400 W (1,200 W per input). With 2,400 W of panels that's roughly 2.1 hours of good sun from empty.
Is the Anker SOLIX F3800 expandable?
Yes, up to 26,880 Wh with Anker SOLIX's extra batteries.
Does the Anker SOLIX F3800 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.