Anker SOLIX C300X

Name: Anker SOLIX C300X
Brand: Anker

Anker SOLIX C300X portable power station, 288Wh

Anker SOLIX C300X is best suited for: cpap, baby monitor nursery backup, camping (scored 91.1/100 for its top-fit use-case). Note: 1 field(s) still need verification before full publish — see methodology.

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The Anker SOLIX C300X is a compact portable power station with a 288Wh battery and a 300W continuous AC output (600W surge). Its inverter is confirmed pure sine wave, so it runs CPAP machines and pump motors safely. It scores 91.1/100 for CPAP backup, its strongest fit in this dataset.

If considering this for CPAP or another medical device, confirm exact power requirements with your device manufacturer or DME provider — this page is a power-math guide, not medical advice.

Best For

CPAP · 91.1/100 Baby Monitor Nursery Backup · 87.3/100 Camping · 85/100 Evacuation Go-Bag · 84.4/100 Craft Fair Market Vendor · 80.4/100 Winter Camping Cold Weather · 75.5/100

Full Specifications

Brand	Anker
Model	SOLIX C300X
Category	standalone
Capacity	288 Wh
Continuous AC Output	300 W
Surge Output	600 W
Battery Chemistry	LiFePO4
Inverter Type	Pure Sine Wave
Weight	4.08 kg
Price	299.99 USD
AC Recharge Time (0-100%)	1.13 hrs
Max Solar Input	300 W
Warranty	5 years

5-year full-device warranty on the standard AC model tier. See the full warranty comparison across all brands →

At 300W continuous and 600W surge, it cannot reliably start a typical well or sump pump motor. Its 288Wh battery runs a 75W CPAP with a heated humidifier for roughly 2.9 hours and a 100W mini-fridge for roughly 2.2 hours, after a 25% AC-inverter efficiency loss. At $299.99, that works out to $1.04 per watt-hour. It accepts up to 300W of solar input for off-grid recharging.

Pros & Cons

Pros

Confirmed pure sine wave inverter — safe for CPAP and other sensitive electronics
Very portable at 4.08kg
5-year warranty — above average for this category

Cons

None noted

Who Should Avoid This

No specific disqualifying weaknesses found in this dataset.

Methodology & Sources

Verified: 2026-09-13 · Confidence: High · Method v1.0

Primary source →

Open verification items:

battery_chemistry: LiFePO4 inferred from 90,000mAh/288Wh spec line, not a separately restated confirmation — low-stakes given the arithmetic is standard for this product line, not treated as blocking