Operation & Installation Manual RFS1 V2
MA365 Rev 3
37 of 46
9
Battery Capacity Calculation
The required battery capacity can be calculated using the active battery calculation
spread sheet. By selecting the RFS1 V2, no. of smoke/heat alarms and adding any
ancillaries, the spread sheet will automatically calculate the battery capacity required
to maintain the system for 72 hours in standby condition followed by 4 minutes in
alarm as required by AS3786.
Manual calculation of battery capacity can also be calculated as follow:
Total Quiescent Current I
Q = _______ mA
Standby time T
1
= 72 Hrs
Total Alarm Current I
A = _______ mA
Alarm time T
2
= 4 minutes.
Battery Capacity (Ah)
=
��𝐼𝐼
𝑄𝑄
×
𝑇𝑇
1
�+2
(
𝐼𝐼
𝐴𝐴
×
𝑇𝑇
2
)
60
⁄ �
×
1
.
25
1000
Power supply requirements = I
A
+ 300mA (where 300mA is the battery charge
current)
RFS1 V2 Battery Calculations
Rev
1
Date
22-Jul-19
Project:
mA
Total mA
mA
Total mA
Single Zone Residential Fire Panel (1 Keypad)
RFS1V2
1
33.0
33.0
100.0
100.0 Voltage @ 13.8V
Second keypad
BARFS1-KPAD
0
40.0
0.0
40.0
0.0
Photoelectric Smoke Alarm
EIB650iWX
1
4.5
4.5
30.0
30.0
Heat Alarm
EIB603CX
1
6.0
6.0
50.0
50.0
Roof Space Heat Detector 60
⁰
HS60V2
1
0.0
0.0
6.7
6.7
If RIL fitted I
A
= 14mA
Roof Space Heat Detector 80
⁰
HS60V2
1
0.0
0.0
6.7
6.7
If RIL fitted I
A
= 14mA
Billow Shaker (Vibration Patrice)
EIB207V
1
1.3
1.3
100.0
100.0
Generic Input / Output Module
EIB209IO
1
1.3
1.3
45.0
45.0
Strobe Light (VAD)
BVADC/BVADW
1
1.3
1.3
25.0
25.0
Total no. of Alarms
5
13
Ancillary Output (not shown above)
0.0
0.0
Others
0.0
0.0
Total current consumption. (mA)
47.4
363.4
Standby
Time (hours)
72
Alarm
Time (minutes)
4
Battery Requirement (in AH)
4.326567
Use 7 AH Battery
Nearest Standard Battery Size (A/h)
7
Note: Only yellow cells can be edited
Max. 15 Alarm
Comments
System Components
No. of
Units
Stock Number
Quiescent Current I
Q
Alarm Current I
A
