I have had my iPhone 4S since launch (October) and was wondering whether this was normal usage: I don't use my phone for much, never play any games, basically all I do on it is browse the web/look at RSS feeds messages/texts and the (occasional) phone call, mostly general stuff, but nothing processor or GPS intensive. I don't use location services though they are turned on, and notifications are limited to only a few apps that I use. Push email is always on and schedule is hourly. Basically I don't get more than 4 hours of battery life and it can be quite frustrating as I can never get through the day without it dying. I have a feeling there is a problem with my battery, as my Girlfriend who has an iPhone 4 gets about 7 hours battery, and that's with it being on standby for two days. I have to charge mine every night.