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Home Alarm Systems optima mx 6 back up?

when there is a power failure should your alarm ring?
Darren Coulson, February 2012
Not if the battery is ok.
see when there's a power cut the panel takes its power from the backup battery.

If the battery is shagged then there's no power to run the panel,so the alarm sounds.

no name, February 2012
link Click here to see other fixes for Optima.