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DIY Battery Replacement for
Simon XT Security Panel

Watch a step by step video for replacing the battery in your Simon XT security control. Remember, before changing the battery, make sure your system is disarmed and placed on test mode.



DOWNLOAD THE HOW-TO GUIDES

For your convenience, you can download the step-by-step guides related to your security system technology.

For immediate assistance, call 877-314-7092

  1. PLACE YOUR SYSTEM ON TEST
    Before changing the battery, ensure the system is disarmed and go to Guardian's Customer Care Website. You may also contact our Customer Service Department at 1-888-895-4805 to have your system placed on test. This ensures Guardian doesn't accidentally notify the authorities.

  2. LOCATE YOUR PANEL BOX
    Locate your all-in-one control panel and disconnect the AC adapter using a regular or Phillips head screwdriver to unscrew it from the outlet. To open the Simon XT, first remove the small screw at the top (if applicable).

    ACCESS YOUR BATTERY
    Press the two top tabs and gently pull the panel away from the mounting plate. Allow the Simon XT to hinge downward onto its mounting bracket.

    EXAMINE THE BATTERY Examine the battery for any abnormalities (i.e. the battery has a swollen or split case, there is liquid leaking from the case, the terminals are corroded or the battery is hot.) If there are any abnormalities to the battery, please close the panel box and contact a Guardian representative to schedule a service call.

  3. DISCONNECT THE BATTERY
    **NOTE: Your security system may sound or the keypad may beep as an indication that the battery has been removed from the system. You may press the Disarm button to temporarily stop the noise while you change the battery.
    Separate the battery retainers and remove the battery. Use caution when removing the battery. Using force can damage the mounting bracket. Disconnect the lead wires from the battery.
    TIP: You may need to use a pair of pliers with electrically insulated handles. You may need to wiggle the connector slightly for it to come loose.
    Remove the old battery from the control panel box.
    Warning: Do not to touch any metal objects to the terminals on the battery or to the open-end of the black and red wire connectors.

  4. REMOVE PLASTIC PROTECTOR
    If the replacement battery has plastic terminal protectors, remove them before connecting the wires to the new battery.

    CONNECT NEW BATTERY
    Insert the new battery and reconnect the plug into the panel.
    To install the new battery repeat the steps in reverse order. Connect the black wire first and red last.
    TIP: If the replacement battery does not have a red or black terminal, look at the top of the battery for a terminal next to a (+) positive or (-) Negative sign, respectively.

    CLOSE THE PANEL
    After closing the unit, replace the screw at the top of the panel (if applicable) and clear the alarm system low battery trouble by disarming the system.

  5. TEST YOUR SYSTEM
    Be sure to test your system before having it removed from Test Mode. For assistance, please call Guardian's Customer Service Department at 1-888-895-4805 or go to customercare.guardianprotection.com

Guardian Protection Services
Guardian Protection Services