Strange battery issue

My wife's 4S has been running down about 50% overnight in standby so I decided to investigate it. The basic problem is that it is showing a usage figure of almost the same as the standby figure while in standby indicating that something is running. After trying all sorts of things (including a restore), in desperation today I restored her backup to my 4S and my backup to her 4S. The problem remains with hers which is really strange indicating a hardware problem, but the fact it is showing too much usage would indicate software. Any thoughts please ?

needleman_mark wrote:
did you sync the apps that were originally on her phone back to her phone after the restore? - if so it could be an app thats causing the problem - one hing you could do is close all apps and see if the problem goes away - another more drastic woulf be to restore the phone as a new phone not from backup and see if that fixes it - the backup could be corrupt - if you do that you will need to redo any settings like email ids, etc
Yes, the first thing I did was close all the applications.
And, yes, I have restored the phone as a new phone and it still had the problem. I'm beginning to think it is a hardware fault even though it has the feel of a software problem.

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