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28
5 AV-VBM and AV-VB Battery Calculations
Quiescent Load
Alarm Load
Equipment
I (A)
x
Total
I (A)
x
Total
AV-AMP-80 0.035
1.0
=
0.035 0.220
1.0
=
0.220
AV-ZS (optional)
1.0
0.075
1.0
Amplifier 1
1
1.0
=
Amplifier 2
1
1.0
=
Total
Quiescent Load
=
Alarm Load
=
x 24 hr or 60 hr
Ah
x 0.0833
2
hr
Total Quiescent Current
Ah
Total Alarm Current
Ah
Total Load (Qui Alarm)
Ah
Total Load x 1.20 (battery de-rating factor)
Ah
Converting Watts to Amps:
Utilizing Ohm’s Law (Amps = Watts / Volts), convert amplifier wattage to amperes.
i.e.: maximum load per amplifier 40 Watts
Amps = 40w / 25vrms
Amps
=
1.6
1
Add total speaker circuit load of each amplifier, 40 watts maximum per amplifier.
2
5 minutes in alarm, change to .166 for 10 minutes in alarm.
