Aircraft batteries
1st I'm really sorry for getting back to all of you and I am very grateful for your support. I thought that I would get an Email telling me that I got a response on my thread. Instead I was googleing away to find answers and I came across my own thread.
I was reading through and said this sounds like me, I look at the user and it was me haha.
I have found quite alot of information regarding what the battery supplies power to. These include communication, navigation (GPS or ILS) and also flight controls like the trim tabs on the rudder and elevator with electro mechanical actuators.
The average current of the battery is 70 amps which last for 30 minutes each and there are 2 on the a320.
Thank you again for your replies.