How long can a battery last on an alarm?
How long can a battery last on an alarm? If fully charged and in working order, a panel battery can keep your alarm working for upto 12 hours without mains power. Batteries in wireless sensors are their only source of power. If batteries have expired, your alarm system could have reduced performance, or be completely inoperable. Can a low battery cause a false alarm? Less commonly, a low battery condition can cause false alarms at random times of the day or night. Almost all alarm panels will also display a keypad trouble light to indicate a problem. Keypads with LCD...