Wirless is always off, notifications on for phone, messages, reminders, calender and facebook. Screen brightness is on auto. I have done a few of the tweeks listed on the internet, re; time set by gps off, turned some gps systems off in options as they were always using gps which drained battery. I have email as manual check.
It's quite good at holding its charge when in standby i went to bed one night at 94% slept for 8 hours woke up and it was 90% so roughly 1% per 2 hours.
If i use the phone properly though, it drains sooooooo fast like 10-12 hours. I doubt i used the phone for 3 hours plus aswell, seems something in the background kept the usage up before i closed it. I love the standby time, but using it as i normally would with a phone it wouldn't last half the day. It's quite bad after coming from a Blackberry.
I've charged it once since getting it, let the initial charge from box run to 0 and turn the phone of then did a 0-100% to calibrate the battery. I'll stick it on charge once this gets to 5% aswell.
Its charged whenever it gets to the 5-10% indicator or sometimes earlier if i know i wont have time to put it on charge. I am not sure re; network provider, i haven't gone outside or on the tube yet where it will loose signal and most like waste battery trying to find it or loose signal based on location.
Phone is on latest version of IOS5, no idea why it says Cellular Usage and not Mobile Usage.