Stanley SCSS-700, Installation & Operation Manual

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Model SCSS-700 Installation Manual
3-12 53722
3.6.3 Maximum Battery Standby Load
Table 3-2 and Table 3-3 show the standby load calculations for the SCSS-700 based on 24 and
90 hours of standby. The standby load calculations of line D in the Current Draw Calculation
Worksheet must be less than the number shown in Table 3-2 and Table 3-3 for the selected
battery size, standby hour and alarm time. The numbers below have a built in 20% derating
factor for the battery amp hour capacity
Table 3-2: Maximum Battery Standby Loads for 24 Hour Standby
Rechargeable
Battery Size
24 hr Standby,
5 mins. Alarm
24 hr Standby,
15 min alarm
24 hr Standby,
20 min alarm
17AH 535 mA 473mA 442mA
18AH 569mA 506mA 475mA
24AH 769 mA 706mA 675mA
33AH 1.07A 1.01A 975mA
35AH 1.14A 1.07A 1.04A
40AH 1.30A 1.24A 1.21A
55AH 1.80A 1.74A 1.71A
Table 3-3: Maximum Battery Standby Loads for 90 Hour Standby*
Note: * For FM installations only
Rechargeable
Battery Size
90 hr Standby,
5 min alarm
90 hr Standby,
15 min alarm
90 hr Standby,
20 min alarm
33 AH N/A N/A N/A
40 AH 347mA 331mA 322mA
55 AH 480mA 464mA 456mA
Warning!
Stanley does not support the use of batteries smaller than those listed in Table 3-2 and Table 3-3. If you use a
battery too small for the installation, the system could overload the battery resulting in the installation having
less than the required 24 hours standby power. Use Table 3-2 and Table 3-3 to calculate the correct battery amp
hour rating needed for your installation. It is recommended that you replace batteries every five years.