[BACKUP BATTERY]

Good Day,

I Installed an Texecom Premier elite alarm system and I would like to know how long an 12 Volt 18Ah will last if the power went off. And should a 50va 16Volt Transformer be enough

Here is my alarm specs.

13X PIR Detectors
6X Door Switches
9X Panic Buttons
8X Fire Detectors
3X Dual Beam outdoor beams
2X LCD Keypads

1X RF ADT communicator
1X GSM Communicator
1X 30watt Siren
2X Sound Bombs
1X Remote Reciever.

 

Thanks alot