Hi everyone!
As the title suggests, how long should the battery back up in an external alarm siren last?
I installed the alarm system myself in 1999 and I've regularly changed the panel back up battery every 4 to 5 years, but the bell box battery has never been changed.
System is working well atm. Any advice would be appreciated!
Cheers.
As the title suggests, how long should the battery back up in an external alarm siren last?
I installed the alarm system myself in 1999 and I've regularly changed the panel back up battery every 4 to 5 years, but the bell box battery has never been changed.
System is working well atm. Any advice would be appreciated!
Cheers.