Edwards Signaling FSC Series - Manual (Page 78)

Appendix A: System calculations
70 FSC Series Technical Reference Manual
Battery calculation worksheet
Use this worksheet to determine the minimum size required for the panel’s
standby batteries. Obtain operating current requirements for initiating devices
and notification appliances from their respective installation sheets.
Battery calculation worksheet
Standby
Current (mA)
Alarm
Current (mA)
Base panel [1]
F-DACT(F) (optional) (65 mA) (107 mA)
AUX current (see Form A)
IDC detector current [3]
NAC 1 load 0
NAC 2 load 0
NAC 3 load 0
NAC 4 load 0
Total current [6]
Required standby and
alarm time (in hours)  Standby
time [4]  Alarm time [5]
mAh + mAh = mAh
 1000
Battery amp hour total = Ah
 1.2
Minimum battery size [2] Ah