Updated: 06 February 2026

How do I change a backup battery?

Steps to replace the battery:

  • Turn OFF the mains power to the alarm system by switching off the power point or unplugging the alarm transformer.

  • Remove the small screw on the side of the metal panel door and open the panel.

  • When the panel is opened, the alarm may sound. This is normal due to the tamper switch.

  • Go to the keypad and enter your normal alarm code to silence the alarm.

  • Inside the panel, disconnect the RED (positive) battery cable first, followed by the BLACK (negative) cable.

  • Remove the old battery and place the new battery into the panel.

  • Connect the RED (positive) cable first, then the BLACK (negative) cable.

  • Close the panel door and secure it with the screw or lock.

  • Restore mains power by plugging the transformer back in and switching the power point ON.