Security News & Tips

How to change a burglar alarm battery yourself – Tips from ESP Security

If you have basic DIY skills, changing the battery in your burglar alarm is relatively straightforward. To change your home alarm battery, follow these steps:

  • Open panel: first remove the cover of your main alarm panel by unscrewing the screws holding the front of the panel on. The alarm will then sound. To silence the alarm enter your 4 digit user code.
  • Locate battery: now locate the alarm battery and remove the two terminals (red and black) making sure these don’t touch, when removing and replacing the battery. PLEASE NOTE, there is live 240V power in the transformer – so please be careful and make sure you don’t touch this. Also please make sure you don’t knock any of the other wires in the panel – as these may cause your alarm to stop working.
  • Replace battery: insert the replacement alarm battery, making sure you connect the red and black terminals back with the correct colors. If you get the colors wrong, this could cause a fire – so make sure you don’t get this wrong.
  • Close panel & reset: reset your alarm by entering your 4 digit code twice and press RESET. N.B. the exact procedure for resetting your alarm system may vary between different makes of alarm system – as all alarm systems are different.
Problems you may encounter when changing your home alarm battery

Although changing your alarm battery is relatively simple, you may encounter problems. The following are the most common problems you may encounter when replacing your alarm battery:

  • Alarm ringing when alarm panel lid is open: as soon as you take the front of your alarm panel off your alarm will most likely start going off – and drive you nuts! This happens if you don’t have the ‘engineer code’. Don’t worry, the best thing you can do is quickly replace the battery, close the alarm box and reset your alarm – this will stop the alarm from ringing. N.B. the reason the alarm rings is because there’s a tamper spring on the alarm box. You can push this in, and this should stop the ringing – however we recommend that rather than messing around with this, you just get on and change the battery quickly!
  • Red and black wires spark!: DO NOT LET THE RED AND BLACK WIRES TOUCH – as this will cause the power to trip, and most likely blow a fuse (both in the alarm and also in the fuse spur – if you have one). In the worst circumstances this may cause a fire – so please make sure they don’t touch.
  • Replace with the correct alarm battery: most alarm batteries take 12V batteries – with either 2.4, 3.4, or 7.1ah options. N.B. your alarm can take any of these alarm battery types, as long as they fit into the alarm panel box.

If you still need help with your burglar alarm battery replacement, do not hesitate to contact ESP Security. ESP Security

ESP Security can replace all alarm batteries in all alarm systems including HKC Batteries, Aritec Batteries, Astec Batteries & Phonewatch. Should you need an alarm battery replaced in your alarm system simply call ESP Security on 01 8391188 and we will arrange a time to call out that will suits you.

We can replace all types of alarm batteries in Dublin, Kildare, Meath, Wicklow and Louth areas.

To contact Brian from ESP Security about your alarm repair, call 01 8391188 or click here 


HKC alarm battery 

U.T.C alarm battery

Concorde alarm Battery

Simon alarm battery

Siemens alarm battery

Voisonic alarm battery

Risco alarm battery

Phone watch alarm battery

ADT alarm battery

Astec alarm Battery 

Aritec alarm battery

The batteries used in all of these alarm systems can vary.

It is important to always use the correct alarm battery –  as the wrong alarm battery in an alarm panel can cause a house fire.


Window sensor batteries

Door sensor batteries,

PIR Motion sensor batteries

Remote control batteries

Fob batteries

Alarm batteries and

Alarm panel batteries.


Fault 61

Low battery

Comms fault

Comms error

Tamper fault battery.

In some systems, you will also hear a beeping. If you do hear this beeping or get a message on your alarm panel screen – simply put in your user code and call our 24-hour emergency line on 01 8391188  and we will be glad to assist you.

Contact ESP Security today for more information and a quote

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