You may want to change the battery standby time used for a battery calculation from the default 24 hours of standby and 5 minutes of alarm.
First select the options from the FireCAD ribbon, menu or command line as follows:
Using the FireCAD Ribbon
Using the FireCAD Menu
Using the FireCAD Command Line
The Options Editor
When the options editor opens, select the "Reports" tab then change the standby and/or alarm values to your needs.
When done, be sure to click the "Apply" button.