Alarm system (Battery backup problem)?


Posted December 14th, 2009 by admin 1 Comment »
battery backup
Rudie Stay in Africa asked:


I got a Paradox alarm system with 3 beams outside and 5 passive inside the house.
The battery is the problem it is a 12 volt and 9 amp battery how long is the battery suppose to last if there is a electric failure

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Posted in Home Theater | 1 Comment »

I want to install POWER INVERTER which convert 24v DV to 220v AC. Question is how many amp. battery I required


Posted February 7th, 2009 by admin 1 Comment »
battery backup
wahabone asked:


Hello ALL,

My Question is that.
I wan to install power inverter in my HOME for backup of electricity.
I have TOTAL load of 1200watts
and all our products work at 220v.

and My inverter convert 24v DV to 220v AC

which amp. battery should I connect to my inverter to get 2hours time @ 1200watts load.

and how we calculate it

Br.
A. Wahab

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Posted in Engineering | 1 Comment »