Power Outages
Backup Power for CPAP and Small Medical Devices
Medical-device backup should be planned conservatively, tested ahead of time, and separated from optional household loads.
Quick takeaways
- Check the device wattage and required runtime.
- Test the battery with the actual device.
- Keep medical backup separate from comfort loads.
Use the device label and manual
A CPAP, oxygen concentrator, or other device may have different wattage depending on settings and accessories. The safest first step is to check the label and manufacturer guidance.
Plan more runtime than the math says
Battery capacity, inverter losses, cold temperatures, humidifiers, and aging can reduce runtime. Build in a reserve and test the setup during normal conditions.
Keep a simple backup routine
Store the battery, cords, and written instructions together. If the device is medically critical, speak with the medical provider and utility about additional emergency planning options.