I know most people have been complaining about battery drain on the iPhone 4S, I still use the iPhone 4 and was not having any issues - until I updated to 5.0.1.
Installed last night at 9pm and by 11pm I was at 45% of battery.
This morning I have restored the phone and turned off all setting that include, Bluetooth, Wifi, Time Zone Location, Turned my screen brightness down, disabled vibrate, Mobile data, Location services for apps that I dont use ona daily basis.
The restore was complete at 8am this morning, all looked good apart from my phone was now non more than an iPod, drove to work which took 20 mins
Its currently 9.44am and my battery is 49% ***!!!!