Appendix B: Worksheets
184 P/N 3102352-EN • REV 005 • ISS 28DEC18
Battery calculation worksheet
Use this worksheet to determine the minimum amp hour capacity required for the panel’s
standby battery. You can obtain operating current requirements for notification appliances from
their respective installation sheets.
Battery calculation worksheet
Standby
current (mA)
Alarm (Fire)
current (mA)
Control panel
(use Worksheet A and place totals here)
Auxiliary/smoke power
(use Worksheet B and place totals here)
NAC 1
NAC 2
NAC 3
NAC 4
Total current
Operating time required ×
hr × min
Total CO mAh (from Worksheet C) [2] ÷ 60
+ = mAh
× 1.2
mAh
÷ 1,000
Battery size [1] Ah
[1] Battery size may not exceed 26 Ah for UL/ULC systems. See Appendix A “Panel specifications” on page 179
and “Battery wiring (TB8)” on page 8 for battery details.
[2] Worksheet C for CO device current loads is not required if the system is monitored by a supervising station
with emergency response per NFPA 720.
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