originally had the battery drainage problem, but it is now fixed after I restored the phone via itunes. my phone now lasts almost 2 days with light usage. hope this will help someone out there.
+1
I had tried loads of different fixes previously and none of them worked so I also did it the old fashioned way.
I have iCloud and all location services on and I'm at 11 hours standby 1 hour usage 84%
Happy now finally