Capacity-first planning

What can a 500 Wh power station run?

Compare ten common loads before adjusting the calculator for your exact device, output path, battery condition, and reserve.

Runtime by device

Each row uses the scenario's sourced planning load and the site's shared runtime engine.

Assumptions: scenario-specific AC efficiency and duty cycle, 10% reserve, new battery, no temperature loss, and no fixed station idle draw.

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Estimated runtime by device for a 500 Wh power station
Device scenarioPlanning loadEstimated runtimePlanning rangeEvidence
Full-size refrigerator500 W · 33%2h 19m1h 27m – 2h 53mFull-size refrigerator
Mini fridge75 W · 45%11h 20m7h 6m – 14h 4mMini fridge
CPAP without heated humidifier40 W · 100%9h 34m5h 59m – 11h 53mCPAP without heated humidifier
Starlink Standard85 W · 100%4h 30m2h 49m – 5h 35mStarlink Standard
Laptop60 W · 100%6h 36m4h 9m – 8h 11mLaptop
Wi-Fi router12 W · 100%1d 9h20h 44m – 1d 16hWi-Fi router
LED TV100 W · 100%3h 50m2h 24m – 4h 45mLED TV
Portable fan35 W · 100%10h 56m6h 50m – 13h 34mPortable fan
LED light10 W · 100%1d 15h1d 0h – 2d 1hLED light
Camera battery charger15 W · 100%1d 3h17h 25m – 1d 10hCamera battery charger

These are calculated planning estimates, not measured runtimes. Low-power loads can be more sensitive to station idle draw, and runtime does not prove AC output or startup-surge compatibility.

For CPAP or other medical-comfort use, confirm the exact device and battery guidance with the manufacturer. Do not rely on this table as a critical backup plan.

Nearby source-linked models

These are the closest nominal capacities in the catalog, not recommendations. Actual capacity and all known or unknown specifications remain visible on each model page.

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