The DSC iotega requires a special battery pack available for purchase from the manufacturer.

To replace the battery in a DSC iotega:

If desired, put the system in test mode with the monitoring station before proceeding. 

1. Remove the access cover from the back of the panel.
2. Push the battery retention tab in the direction of the arrow in the figure below.

   
    

3. Lift the battery from the front, then pull it up and slide it out.

   
    

4. Reinstall the access cover.