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Security & Alarm Systems

How Your Security System Performs During a Power Outage

Published on January 27, 2026 | By Berkley Security Inc.

Mississippi experiences frequent power outages from thunderstorms, hurricanes, and grid overloads during extreme heat. When the power goes out, your security system's behavior depends entirely on how it was designed and maintained. Here is exactly what happens to each component when your electricity fails.

Alarm Panel Behavior

A properly maintained alarm panel switches instantly to battery backup power. All sensors remain active, the system continues monitoring, and cellular communication to the monitoring center continues uninterrupted. The panel sends an automatic "AC power loss" signal to the monitoring center, alerting them to your outage. When power returns, the panel automatically resumes AC operation and recharges the battery.

Camera System Behavior

Standard PoE camera systems lose power when the NVR and network switch lose power. However, NVRs connected to an Uninterruptible Power Supply (UPS) continue operating on battery. A properly sized UPS can sustain a camera system for 30 minutes to several hours depending on the load. For extended outages, a whole-home generator keeps cameras running indefinitely.

Smart Home Devices

Smart locks with battery backup continue functioning normally during outages. Smart lighting automation obviously ceases, but programmed schedules resume automatically when power returns. Wi-Fi-dependent devices like smart thermostats and voice assistants go offline until the router powers back up.

Storm-Ready Systems in Vidalia

Property owners in Vidalia, LA prepare for extended storm outages with Berkley Security's guidance. We size backup batteries for your specific system load, recommend UPS units for camera systems, and configure cellular-only monitoring paths that remain operational when internet and phone lines are down.

Stay Protected Through Every Outage

Prepare your security system for Mississippi's unpredictable power grid. Contact Berkley Security for outage preparedness.

Prepare Your System