Honeywell Silent Knight IFP-2000 Module 3 Installation Manual page 15

Battery Calculations Battery Calculations
Sum the currents of all devices that draw current in :
Standby:
Multiply by 24 hours:
Multiply MAX supply capability (say 6
amps) by 5/60 (0.084):
Sum Standby & Alarm:
Safety / De-Rating Factor built-into
numbers in manual
0.5 Amps
12.0 Amp-Hours
0.5 Amp-Hours
12.5 Amp-Hours
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