How Often Do You Need To Change Fire Alarm Batteries. Replace the battery or conduct a load test of the battery. Advertisement If a smoke detector battery does run down or goes dead in a hard-wired system the alarm will emit a regular chirping noise.
The reason for this is that there is no telling how long those fire alarm batteries sat in your warehouse or even the manufacturers warehouse. Turn off the circuit disconnect means to the fire alarm system. Best Value Online Guaranteed.
The Cost of Replacing Alarm Batteries.
A good rule of thumb is to change back up control batteries about every 3 to 5 years depending on the system type of batteries and how often the system is in use. If your alarms have no visible battery compartment this must be what you have. Or set a calendar reminder for. Batteries should be replaced long before that.
