AFP-3030 Installation Manual — P/N DOC-01-037:B 25/08/2016 38
Calculating the Battery Requirements Electrical Specifications
A.7 Calculating the Battery Requirements
A.7.1 Battery Power Equations
A.7.2 Recommended Standby Battery Sizes
When selecting and installing batteries, ensure that there is enough available current to charge the
batteries while in quiescent mode. A list of available batteries and the minimum charging current
required is shown in Table A.5, “Recommended Battery Specifications”.
For a remotely connected system:
Ah = (I
Q
x 24) + I
A
For a non-remotely-connected system:
Ah = (I
Q
x 72) + I
A
Where:
Ah
= The minimum rated battery capacity
I
Q
= the non-alarm current from that battery (charger off) in amps
I
A
= the alarm current drawn from the battery (charger off) in amps
NOTE: A times 2 de-rating factor has been applied to the Alarm Capacity to compensate for
battery conversion inefficiencies.
NOTE: Connect only sealed lead acid batteries.
Battery Description Voltage Capacity (Ah)
Minimum
Charging Current (A)
Quantity
Olympic, 12 AH 12 V Battery -
BATT/12 (CJ12-12)
12 12 0.55 2
Olympic, 18 AH 12 V Battery -
BATT/18 (CJ12-18)
12 18 0.83 2
Olympic, 26 AH 12 V Battery -
BATT/26 (CJ12-26)
12 26 1.19 2
Olympic, 33 AH 12 V Battery -
BATT/33 (CJ12-33)
12 33 1.51 2
Olympic 40 AH 12 V Battery -
BATT/40 (CJ12-40)
12 40 1.83 2
Olympic 85 AH 12 V Battery -
BATT/85 (CJ12-85)
12 85 3.89 2
Table A.5 Recommended Battery Specifications
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