Simon XTi—Battery Replacement

Summary: This guide provides step-by-step instructions for replacing the backup battery in your Simon XTi panel. Proper battery replacement ensures your panel continues to function during power outages. After replacing the battery, follow instructions to clear any panel alerts. The battery may take up to 24 hours to fully charge after replacement.

The Simon XTi panel requires a 6-Volt 2100 mA battery, which can be purchased at your local hardware, mass retailer, or battery store. You may also text a Support Representative at 469.513.8685 to order one.

Step-by-Step Instructions

  1. Insert a coin into the bottom right corner slot, then twist to remove the front cover.

    Removing Simon XTi Front Cover with Coin

  2. Pry the top tabs up, then fold down the front cover.

    Folding Down Simon XTi Front Cover

  3. Unplug the battery and remove the battery pack.

    Unplugging Simon XTi Battery

  4. Replace the battery with a 6-Volt 2100 mA battery.

    Installing New Battery in Simon XTi

Note: Once the battery is replaced, it may take up to 24 hours to fully charge. During this time, the panel may display a low battery alert.

Clearing the Panel Alert

  1. Press the gear icon at the bottom right corner, then press Hear to listen to the trouble details.

    Listening to Trouble Details on Simon XTi Simon XTi Trouble Alert Details

  2. Press Clear to clear the alerts, then press Close to exit.

    Clearing Trouble Alerts on Simon XTi Closing Trouble Alerts on Simon XTi

If you need further assistance, you can text a Support Representative any time at 469.513.8685.