Document #50801 Rev. B 8/17/98 P/N 50801:B
51
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.
Batteries larger than 7 Ampere Hour, up to 18 Ampere Hour, require the BB-17F battery box.
TABLE A-1:
Battery Calculation
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 min. = 0.084 hours)
[ ]
=
_______________
Add Standby and Alarm Load for Required Ampere Hour Battery
=
_______________
Multiply by derating factor of 1.2
X 1.2
_______________
Summary of Contents for MS-2410BC
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