house alarm

[scarymary]

does anyone know how long the battery will last in a bellbox of an alarm that is about 7 years old and hasnt been maintained ! mine is disconnected from the mains but is still going off, has been for 5 hours please help !

[kat472]

The Alarm does not draw much current and the battery is a reasonable size....

It'll have probably stopped by morning, but that'll be due to your neighbours "stopping" it !!

[misstaken15]

Get a ladder out and some ear muffs - then just go up there and pull the battery out...

it might not like you putting the battery back in though, depends how 'paranoid' the alarm is...

[Jay70]

My alarm system has a relatively small capacity battery in the bell box - its actually just a group of button cells heatshrunk together. The battery in the control panel is much lager in terms of capacity. Even if you take the battery out of the bell box you may well find as on my system the control panel battery will also power the siren so it may be a case of taken them both out if fitted. When the battery in my control panel lost its storage capacity it started triggering the siren even when the mains power was connected. The control panel just displayed a fault warning light. It could also be one of your sensors / tamper switches that is playing up i.e continually triggering the alarm. Your control panel may have zone indicators on it which indicate which sensor has triggered the alarm. This should givw you an idea as to what part of the system is causing the problem. If it is a tamper switch it may well just be that the bell box or control panel are not fitted tight up against the wall. Hope you get it sorted.

[Jay70]

P.S. just for interest the battery in my unit was about 7yr old when it needed replacing. It's normally a 12v YUASA sealed lead acid type of battery in the cotrol panel. Please let me know how you get on.