What size power station do I need for Portable fan?
Portable fan
Default appliance profile before model-specific measurements.
The portable fan is estimated to draw 45 W for 8 hours per day, or about 360 Wh daily. The supplied conservative target is approximately 523 Wh of nominal battery capacity, with an inverter rated for at least the 60 W startup demand.
These are baseline estimates, not hands-on test results. Actual use may vary by fan model, settings, ambient conditions and load; model-specific measurements are not provided.
- For one default day: Target about 523 Wh of nominal capacity.
- For output sizing: Allow at least 45 W continuous output and 60 W for startup demand.
- Decision note: A 500 Wh station is listed at about 1.1 default-profile days; confirm suitability with a plug-in power meter or manufacturer energy label when available.
Using the default load profile, portable fan consumes about 360 Wh/day. A conservative one-day battery target is about 522 Wh nominal capacity, while the inverter should cover at least 60 W of startup demand.
Assumptions behind the calculation
- Running draw: 45 W
- Startup/surge: 60 W
- Default use: 8 h/day
- Duty cycle: 100%
- Usage uncertainty: ±20% before model-specific measurements
Actual energy use varies by appliance model, ambient conditions, settings and load. A plug-in power meter or manufacturer energy label is preferable when available.
Runtime by battery size
| Station capacity | Continuous-draw runtime | Default usage profile |
|---|---|---|
| 300 Wh | 5.3 h at continuous draw | 0.7 default-profile days |
| 500 Wh | 8.8 h at continuous draw | 1.1 default-profile days |
| 1000 Wh | 17.6 h at continuous draw | 2.2 default-profile days |
| 1500 Wh | 26.4 h at continuous draw | 3.3 default-profile days |
| 2000 Wh | 35.2 h at continuous draw | 4.4 default-profile days |
| 3000 Wh | 52.8 h at continuous draw | 6.6 default-profile days |
Use your actual household loads
The calculator combines this appliance with refrigerators, networking, pumps, medical equipment and other essentials so simultaneous wattage and motor startup are not ignored.