I have already done most of what the official Apple page says to do.
The apps I have got into the habit of closing all the time now.
I've minimalised location services, wifi and bluetooth are off all the itme unless I'm at home and want to use wifi, I'e delete my email accounts off my phone totally all sorts!
Today, 9am had 100%, 12 hours later I had 20%.
Went into Vodafone today and they reckon I should be getting at least 1.5 - 2 days out of a full cycle, unless of course I'm streaming videos and making calls all the time, but I'm not.
I've been told as well not to charge it overnight as keeping it plugged in excessively damages the battery.
I was told by the guy that buy the sounds of it Apple might just replace the phone?