Hi. I woldn't have been hammering it during those five hours but to summarise
- Bluetooth enabled
- Picking up my Outlook Exchange and Hotmail messages
- A couple of calls
- Connected to my work WiFi network.
In essence my daytime usage never changes very much at all. I've had my iPhone 5 for about 7 months and up until I installed IOS 6.1.3 I had never experienced any battery issues at all. I always left it powered down and on charge overnight and it would be off charge from around 7am until 11pm without the need to recharge. I never took much notice of the battery indicator as I didn't need to. Within a day or two of downloading 6.1.3 I was down to 20% battery within 4 hours and if I didn't get it on charge pdq it would die within 5 to 6 hours from coming off a full charge. Since then I've kept it on charge at my desk and in my car.
I use BBC News and Sports apps, Facebook, LinkedIn, Twitter and Skype on a daily basis. It's now approaching 8 hours since I took it off charge this morning and the battery is at 71% (3.6% per hour seems pretty reasonable dissipation to me). I've now started reinstalling my most used apps direct from the App Store (five so far including FB). I've not noticed any effect on the battery so I'll keep adding those apps bit by bit and see what happens.
My gut feeling is that there is nothing wrong within IOS 6.1.3 itself but the way it interacts with some iPhones (particularly 5's judging by the feedback in these forums) seems to cause issus with some of them. All I know is that when I restored to factory default a couple of weeks ago I also restored the backed up apps and data and the battery drainage persisted. Leaving those backups to rot and downloading the apps independently seems so far to have done the trick. I'll post an update once I have everything installed again and confirmed that the battery life is holding out.
Cheers for now