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- 14 - M series

AL1024ULM Battery Size Calculation Worksheet.

A. AL1024ULM internal current consumption (stand-by) ______________ 0.13 A

B. Load current consumption (stand-by) ______________ A

C. Stand-by time required (hours) ______________ H

D. Battery capacity required for stand-by (A+B)*C ______________ AH

E. AL1024ULM internal power consumption (Alarm) ______________ 0.13 A

F. Load current consumption (Alarm) ______________ A

G. Alarm duration (Hours, example: 15 Min = 0.25 Hour) (Alarm) ______________ H

H. Battery capacity required for Alarm (E+F)*G ______________ AH0

I. Total calculated battery capacity D+H ______________ AH

J. Battery capacity required I*1.8 (safety factor) ______________ AH

Note: AL1024ULM power supply is designed to work with batteries up to 65AH. Please note, line [I] must not exceeds

36AH. You have to reduce either standby current consumption or standby time in order to comply with requirement.

To determine actual battery size please round line [J] to the nearest larger standard battery size.

Altronix AL300ULM User Manual

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