iPhone 4 and 4S

[Micktheglove]

Anyone else notice that the battery life is much worse now?

[jeffkinn]

I certainly haven't.

Postings about changes in battery life always come thick and fast after an iOS upgrade. It is probably because something has happened to your specific phone or an app installed on it.

You could try all of the normal troubleshooting techniques of  - reset/restore/restore as new.

If an app has been corrupted in some way restoring as new is probably the answer. Make sure that all of your data is stored somewhere safe and not just included in an Itunes backup. Music and apps will be on itunes but contacts and photos need to be manually synced with your computer. You will lose text mesage history unless you are going to jaobreak and use some unauthorised method of getting your textsx off and back on.

[Micktheglove]

I woke up at 8, havent used my fone untill i made a 3 minute fonecall before posting this and am at 82%. Time now is 14:26. Does that seem normal?

[jeffkinn · Accepted solution]

There is no such thing as normal - and battery usage depends on what the phone was doing at the time. How many emails accounts are being checked - push or fetch? Any apps running that pull data or process data from time to time. Are Wi-Fi/Bluetooth/GPS on

If the phone was not doing any work at all then the loss does seem high and I wasnt suggesting that you dont have a problem. I was saying that the iOS upgrade itself is not to blame but another problem may have been highlighted by tghe upgrade. Thats why a fresh install might cure the problem.

Good luck

[ianthetaxman]

Dunno if it helps but i have three push email accounts active, bluetooth off and wifi on, with about 100 apps loaded (but not all working at the same time!) and i'm getting about a day and a half from a full charge which for me is pretty amazing, coming from an old SE xperia x10 that wouldnt last more than around 10 - 15 hours from a full charge