Have a 4 (not) and battery life is dependant on how you use it.
On days where I don't use it much (a few texts, checking e-mails - in the country so keeps trying, little bit of browsing in the evenings, etc.) and it's around 65% when I retire for the evening. If I use it a fair bit then 50%. To get it to be much less then I have to be watching vids/youtube, using it a lot, using the maps when driving etc. I would have to really try to get it to run out from 100% charge at 8am to 0% at midnight. I charge overnight but don't need to do this every night (every other probably) but do so anyway as some days get higher usage than others.
I turn off push (fetch e-mail every 15mins), ONLY have notifications you actually want/need, bluetooth is actually ON (for car handsfree), make sure brightness isn't 100% (too bright anyway).
Don't forget that as it's new to you, you'll be playing with it a lot more than when the novelty factor wears off.
Have an iPhone4 that's nearing 2 years old and just charge it every night, rarely have a problem with battery, fairly heavy user.
My brand new 4S lasts less than a day and thats without watching youtube, sky go etc ! Should i send it back ?
Thanks.
Top Tips
IPhone users - increase the battery life of your phone, by PUTTING THE f***ing THING DOWN occasionally.
Those people who charge phones overnight, aren't you slowly killing the battery once it has a full charge, bit like a laptop which is always plugged into the mains kills the batery
I get about 36 hours with moderate internet and radio use.
iPhone 4
No the iPhone (and, presumably, other phones) has some smarts in it that effectively stops it charging when it gets to 100%.
Have an iPhone4 that's nearing 2 years old and just charge it every night, rarely have a problem with battery, fairly heavy user.
Same, although mine's 25 months old now.