What size power station do I need for Home security system?
Home security system
Default appliance profile before model-specific measurements.
Using the default load profile, the home security system is estimated to use 480 Wh per day: 20 W running draw for 24 hours at a 100% duty cycle. Actual consumption may vary by model, settings, ambient conditions, and load; the estimate includes ±20% usage uncertainty.
The supplied conservative one-day target is about 697 Wh of nominal battery capacity, using 88% inverter efficiency, a 90% usable fraction, and a 15% reserve margin. The inverter should support at least 30 W of startup or surge demand. No model-specific measurements are provided.
- Choose capacity: Target approximately 697 Wh or more for the stated one-day backup objective.
- Check output: Confirm that the power station can handle at least 30 W of startup demand, not only the 20 W running draw.
- Verify actual use: A plug-in power meter or manufacturer energy label is preferable when available; the evidence does not provide measured consumption for a specific system.
Using the default load profile, home security system consumes about 480 Wh/day. A conservative one-day battery target is about 696 Wh nominal capacity, while the inverter should cover at least 30 W of startup demand.
Assumptions behind the calculation
- Running draw: 20 W
- Startup/surge: 30 W
- Default use: 24 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 | 11.9 h at continuous draw | 0.5 default-profile days |
| 500 Wh | 19.8 h at continuous draw | 0.8 default-profile days |
| 1000 Wh | 39.6 h at continuous draw | 1.7 default-profile days |
| 1500 Wh | 59.4 h at continuous draw | 2.5 default-profile days |
| 2000 Wh | 79.2 h at continuous draw | 3.3 default-profile days |
| 3000 Wh | 118.8 h at continuous draw | 5 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.