How Long Does a 500W Power Station Last?
256Wh to 512Wh · 301-600W output · $189 to $449
Quick answer
A 500W power station (256-512Wh) typically lasts:
Range reflects smallest to largest battery in this class. Formula: (Wh x 0.85) / watts.
The 500W class is the best-selling tier in portable power for a reason: it is the smallest class that can run a mini-fridge. With 256-512Wh batteries and 500-600W output, these units handle everything the 300W class does plus small kitchen appliances, a TV, a box fan, and basic power-outage coverage (lights + router + phones for a full day). They weigh 12-18 lbs and fit in a car trunk.
Who is the 500W class for?
Car campers and tailgaters, apartment dwellers preparing for short outages (4-8 hours of lights + Wi-Fi + phone), van lifers with modest power needs, and outdoor vendors running small displays.
✅ Great for
⚠️ Borderline
❌ Not suitable
Runtime by Appliance
Range: 256Wh (smallest) to 512Wh (largest) in this class
Our 500W Picks
Best for Car Camping
Best balance of capacity, weight, and port variety for trunk storage
Best Budget
Lowest price that still delivers reliable 500W output
Best for Apartments
Most USB-C ports and quietest fan for indoor use
All 500W Power Stations
6 models from Anker SOLIX, Bluetti, EcoFlow, Jackery, sorted by capacity
Runtime = (Wh x 0.85) / appliance watts. Prices verified April 2026.
FAQ: 500W Power Stations
3 questions specific to this wattage class
Can a 500W power station run a mini-fridge?
Yes. Mini-fridges draw 50-60W running with a 180W startup surge. Every 500W model handles that. With a 512Wh battery, expect 7-8 hours continuous, longer in practice because the compressor cycles on and off.
How long will a 500W station power a TV?
A 55″ LED TV draws about 120W. With a 512Wh battery: (512 x 0.85) / 120 = roughly 3.6 hours. A smaller 32″ TV at 50W would last over 8 hours.
Is 500W enough for a power outage?
For a short outage (4-8 hours), yes. You can keep your Wi-Fi router, phones, LED lights, and a small fan running all day. For keeping a full-size refrigerator cold, step up to 1000W.
Other wattage classes
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Specs sourced from manufacturer product catalogs. Runtime = (Wh x 0.85) / appliance watts per DOE efficiency data.
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