
Model 5700 Installation and Operation Manual
3-8 151295
3.6.1.2 Maximum Battery Standby Load
The table below shows the maximum battery standby load for the 5700 based on 24 and 60
hours of standby. The standby load calculations of line D in the Current Draw Calculation
Worksheet (Table 3-2) must be less than the number shown in the table below for the battery
size used and standby hours required.
* Required for NFPA 72 Auxiliary Protected Fire Alarm systems for Fire Alarm Service (City Box) and Remote
Station Protected Fire Alarm systems (Polarity Reversal) and Digital Alarm Communicator/Transmitter
(DACT).
Rechargeable Battery Size
Max. Load for 24 hrs.
Standby, 5 mins. Alarm
*Max. Load for 60 hrs.
Standby, 5 mins. Alarm
7 AH 221 mA 85 mA
18 AH 675 mA 250 mA
35 AH 1.1 A 450 mA
Warning!
Silent Knight does not support the use of batteries smaller than those listed in table above. If you use a battery
too small for the installation, the system could overload the battery resulting in the installation having less than
the required 24 hours standby power. Use the Current Calculation Worksheet to calculate the correct battery
amperes/hour rating needed for your installation.
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