Quick intro: When storms roll through and the lights blink, your alarm takes over quietly in the background. Here’s what actually happens, what the beeps mean, and how to get back to normal without stress.
Switches to backup battery automatically. Touchscreens may dim and keypads may chirp to let you know you’re on battery.
Saves power by limiting non‑essential features. Cellular/IP communicators keep trying to reach the monitoring center.
Logs the event so we can see exactly when power dropped and when it returned.
A soft, periodic trouble beep = “I’m on battery.” You can usually silence it with OFF or STATUS for a few hours.
A Low Battery message means the battery voltage is dropping. Long outages or older batteries cause this sooner.
Confirm the transformer is firmly plugged in (check the outlet isn’t on a GFCI that tripped). Many transformers live in basements or behind furniture—easy to miss.
Give the panel 4–24 hours to recharge. If Low Battery remains after a full day, the battery likely needs replacement.
Run a communication test from the user menu if available. If the test fails, skip the guesswork and call us.
Backup batteries typically last 2–4 years depending on panel type and devices. Mark the install date on the battery with a Sharpie.
Use a surge protector for the transformer and your network gear. It won’t stop lightning, but it helps with everyday spikes.
When to call BBC Systems: Low Battery won’t clear after 24 hours, panel never shows AC restored, or any smell/heat from the panel can—unplug and call.