32gb Orange UK ( black )
Ok hope this helps?
I have done a lot of what's said on here. I now turn off Mobile Data located in: Settings> General> Network> Mobile data> set it to off - I only put that on if I need to surf or require 3G, when you are on WiFi turn mobile data off - its better than airplane mode as you can recieve texts and calls, Mobile Data turned off also stops it burning the battery when in low signal areas. I managed 9hr 4min usage/18 hours ( approx ) standby until it was totally flat ( switched itself off ), that usage was surfing/texting/calls/apps and using msn some on WiFi some on 3G.
The list of changes I have done:
Push e-mails off ( manual fetching )
I cloud - on - all other settings off - Back up off ( find my mobile is on ).
I back up to iTunes ( WiFi sync off )
Siri is on ( all functions )
Location Services:
Compass - on
Diagnostics & Usage - off
Location Based iAds - off
Mobile network services - on ( Please watch this, sometimes it gets stuck on - turn it off for a few seconds then back on should sort it )
Setting Time Zone - off
Traffic - off
WiFi setting switch the Ask to Join Networks to off.
I have reduced my screen brightness - so turn the Auto off and set it lower.
Apps set as required, but remember notifications etc will cost battery so just have a think if you need all of them to notify you.
I have also done 2 total drains of the battery ( to the point of it switching itself off ) and after each drain a 16 hour unbroken charge cycle.
It might not work for everyone but give it a go!
Hope it helps until the fix