Alarm going off for no reason

[donskibeat]

Today for no reason at all the alarm has gone off - twice - car just sitting in driveway, no one near it, no wind or anything else which could trigger it. Anyone else had this?

 

[Wonza]

Today for no reason at all the alarm has gone off - twice - car just sitting in driveway, no one near it, no wind or anything else which could trigger it. Anyone else had this?

Edit: title meant to say "for no reason" - not "for now reason" .... perhaps a mod could fix my typo for me please

Is your boot closed properly. Give it a good slam.

 

[donskibeat]

Is your boot closed properly. Give it a good slam.

Yes boot is closed fine, car has been parked up for a few days and not moved, and alarm problem only started today

 

[Kimmax]

Is the battery dying? I forgot to unlock the car before disconnecting the battery last time and was met with a alarm not being happy about that 😂

 

[donskibeat]

Is the battery dying? I forgot to unlock the car before disconnecting the battery last time and was met with a alarm not being happy about that 😂

Yes I did wonder that myself as car not moved for a while so have been out and started it up and left it running a good while to give battery a charge, will see if alarm goes off again now.

 

[Kimmax]

Yes I did wonder that myself as car not moved for a while so have been out and started it up and left it running a good while to give battery a charge, will see if alarm goes off again now.

You’ll probably want to run a few miles as idling won’t be charging the battery effectively I think

 

[donskibeat]

You’ll probably want to run a few miles as idling won’t be charging the battery effectively I think

Scorpion tracker app was showing voltage as 12.3v before and 12.6v after I left it running a while, so has made a bit of a difference. If alarm goes off again I will go for a spin instead

 

[Pugwash]

I am no expert but understand with an alternator, leaving it ticking over is just as efficient as going for a drive. Also being an AGM battery it charges at a different rate than a traditional lead acid battery. If you can, best is to keep it on an intelligent charger that knows about AGM batteries. I think you have posted previously that your car lives outdoors but others on this forum have indicated how they use these types of charger when the car is outside to give a degree of weather protection.