How to change the batteries of the Simon XT/Interlogix panel.
Disconnect the power.
Locate the power plug for your alarm system and remove it from the outlet on the unit. You may need to use a screwdriver to remove a screw holding the plug in place.
Open the system.
To open the system, first remove the small screw at the top of the unit, if present. Then press the two top tabs on either side of the screw and gently pull the system away from the mounting plate. Allow the system to rotate downward until the screen and keypad are facing the wall.
Note: It is normal for the system to beep when opened.
Remove the battery.
Note how the battery is secured in the unit before removing it. Push the plastic clips (retaining the battery) apart, and remove the battery. Use caution when removing the battery as using force can damage the mounting bracket.
- Disconnect the lead wires from the battery.
Remove the plastic protectors from the new battery.
If the replacement battery has plastic terminal protectors, remove them before connecting the wires to the new battery.
Connect the new battery.
To install the new battery, repeat the preceding steps in reverse order. Connect the black wire from the system to the black (-) terminal on the battery, then connect the red wire from the system to the red (+) terminal on the battery. The battery will have colour coding and/or symbols where the wires should be connected (red/black) to help ensure proper installation.
Install the battery.
Firmly press the battery back into the unit until it is held in place with the plastic clips.
Close the panel.
Rotate the system upwards, and press it back into the wall-mounting bracket. Replace the screw at the top of the panel (if applicable).
Power up your system.
Reconnect the power plug to the outlet. Replace the screw holding the plug (if it was removed). Your system is now powered back up.
Call technical support.
Call 1 877 267-2001 to confirm the battery replacement was successful and the device is in proper working order.
Gently remove the plastic connectors from the battery, and set the old battery aside. Warning: Do not touch any metal objects to the terminals on the battery or to the open end of the black and red wire connectors.
Shop The Source for Bell Smart Home batteries.