Please follow the steps below to replace the Simon XTi Panel backup battery:
1. Insert a coin into the bottom right corner slot, then twist to remove the front cover
2. Pry top tabs up, then fold down the front cover
3. Unplug the battery and remove the battery pack
4. Replace with a 6-Volt 2100 mA battery
Tags: replace battery, battery, how to, open simon xti, xti battery
