Shield Aura - Batteries; Standby Battery Type

Batteries
Batteries are used as a secondary power source for the Aura Fire Alarm ControlPanel, in the event that the
primary power source(AC) fails.
Required standby battery capacity is dependent on the required standby period and load of the Aura Fire Alarm
ControlPanel system. Determine the current consumption of the fire alarm system for alarm and standby
conditions. Use these maximum current values to determine the minimum required battery capacity of the fire
alarm system.
Perform the installation only after calculations have been completed and a suitable battery capacity determined.
Refer to Calculations or Loop Explorer 2 to determine the minimum required standby battery capacity of the
system.
Standby Battery Type
The Aura Fire Alarm ControlPanel is a 24 volt system designed to use Valve Regulated Lead Acid
(VRLA)batteries as a secondary (backup) power source. VRLAbatteries are not commonly available in 24V, so
two 12V batteries are typically used, wired in series.
Overview
SHIELD Fire, Safety & Security Ltd
Aura Fire Alarm Control Panel Installation Manual
Version 1.00 |June 2019 |MAN-1431VS
Page 65