Anker SOLIX C300: Runtime & Specs

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

The Anker SOLIX C300 is a 288 Wh LiFePO4 power station with 300 W of continuous AC output and a 600 W surge rating.

Capacity288 WhLiFePO4

Output300 W600 W surge

Solar input100 W11–28 V

Weight9.1 lbnot expandable

View at Anker SOLIX Calculate runtime for your devices

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How long will the C300 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 C300
Device	Avg draw	Runtime
LED light bulb	9 W	27 hours
Phone charging	10 W	26 hours
Wi-Fi router + modem	15 W	16 hours
Laptop	50 W	4.9 hours
CPAP (no humidifier)	30 W	8.2 hours
CPAP with heated humidifier	60 W	4.1 hours
Starlink Standard	90 W	2.7 hours
TV	100 W	2.4 hours
Mini fridge	29 W	8.4 hours
Refrigerator	58 W	Can’t start it
Chest freezer	29 W	Can’t start it
Sump pump (1/3 HP)	160 W	Not enough output
Sump pump (1/2 HP)	210 W	Not enough output
Window AC	225 W	Not enough output
Drip coffee maker	1,000 W	Not enough output
Microwave	1,500 W	Not enough output
Space heater	750 W	Not enough output
Well pump	33 W	Needs 240 V

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 C300 can't power

Refrigerator (full-size, ENERGY STAR): needs about 1,200 W to start
Refrigerator (older full-size, 1990s–early 2000s): needs about 1,600 W to start
Chest freezer (7–15 cu ft): needs about 800 W to start
Upright freezer (frost-free, 13–20 cu ft): needs about 1,000 W to start
Microwave (1,000 W cooking power): needs 1,500 W running
Drip coffee maker (10–12 cup): needs 1,000 W running
Electric kettle (1.7 L): needs 1,500 W running
Toaster (2–4 slice): needs 1,000 W running
Induction burner (single, portable): needs 1,500 W running
Electric pressure cooker (6 qt, Instant Pot type): needs 1,000 W running
Blender (countertop): needs 400 W running
Rice cooker (5.5–6 cup): needs 600 W running
Window AC (5,000 BTU): needs 450 W running
Window AC (8,000 BTU): needs 700 W running
Space heater (portable, 1,500 W): needs 1,500 W running
Dehumidifier (50-pint): needs 490 W running
Gas furnace blower fan: needs 600 W running
Oxygen concentrator (home, 5 L/min): needs 310 W running
Sump pump (1/3 HP): needs 800 W running
Sump pump (1/2 HP): needs 1,050 W running
Well pump (1/2 HP submersible): needs 240 V
Washing machine: needs 500 W running
Garage door opener: needs 720 W running
Circular saw (7-1/4 in.): needs 1,400 W running
EV Level 1 charging (120 V, 12 A): needs 1,440 W running

Solar charging time

Hours of good sun to charge from empty, assuming panels deliver 75% of their rating.

Panels	Power in	Hours of sun
100 W of panels	75 W	3.8 hours

Check panel voltage and wiring with the solar charging calculator.

Full specifications

Battery capacity	288 Wh
Battery chemistry	LiFePO4 (LFP)
Continuous AC output	300 W
Surge (peak) output	600 W
SurgePad (heating devices)	600 W
AC voltage	120V
AC outlets	3
USB-C ports	3 (up to 140 W)
USB-A ports	1
12 V car outlet	Yes
Max solar input	100 W
Solar voltage range	11–28 V
Solar max current	8.2 A
Max AC charging power	330 W
AC charging time (maker claim)	0–80% in 50 min (wall outlet)
Expandable	No
UPS / EPS switchover	10 ms
Cycle life	3,000 cycles
Weight	9.1 lb
Warranty	5 years

Notes: AC model A1722 (C300 DC is a separate DC-only unit). XT60 solar only; USB-C2 also takes 140W input. Cycle-life % not stated. Shown sold out on ankersolix.com (Sep 2026).

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 C300 run a refrigerator?

It may not: a typical fridge compressor needs about 1,200 W for a moment to start, above this model's 600 W surge rating. Newer, smaller fridges may start fine.

Can the Anker SOLIX C300 run a microwave?

Not a full-size one. A typical 1,000 W microwave pulls about 1,500 W from the outlet, more than its 300 W continuous output. Its SurgePad mode is meant for simple heating devices, and microwaves may not work properly with it.

How long does the Anker SOLIX C300 take to charge?

Anker SOLIX's published charging claim: “0–80% in 50 min (wall outlet)”. Max AC charging power is 330 W. With solar, it accepts up to 100 W. With 100 W of panels that's roughly 3.8 hours of good sun from empty.

Is the Anker SOLIX C300 expandable?

No. Its capacity is fixed at 288 Wh.

Does the Anker SOLIX C300 work as a UPS?

Anker SOLIX lists a 10 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.