Document #15140 Rev.G 01/02/02 P/N 15140:G
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Battery Calculations
Appendix A
Battery Calculations
Use the Total Standby and Alarm Load Currents calculated in Table A-2 and Table A-3 for the following battery
calculation.
Note:
1.
7 Ampere Hour battery can be located in the backbox.
2.
12 Ampere Hour and 17 Ampere Hour batteries require the BB-17F battery box.
TABLE A-1:
Battery Calculations
Standby Load
Current (Amps)
[ ]
X
Required Standby Time in Hours
(24 or 60 Hours)
[ ]
=
__________
Alarm Load
Current (Amps)
[ }
X
Required Alarm Time in Hours
(i.e. 5 minutes = 0.084)
[ ]
=
__________
Add Standby and Alarm Load for Required Ampere Hour Battery
=
__________
Multiply by the Derating Factor of 1.2
X 1.2
__________
Total Ampere Hours (AH) Required
=
__________