DARB

I have had the 4.1 upgrade for quite some time, I have always charged my Iphone every evening as I use it throughout the day, but a few days ago the battery was on 15% by midday, so I put it on charge, when I left work it was on 44%, I travelled home, a hour journey and I never touched the phone, but it was on 18%, I fully charged it that night, I went to bed at midnight with 100% and woke up at 5am with a dead phone, the next day it lasted all day as usual, then drained through the night again !!!

I have been asked to restore the phone to factory settings, so I'm now doing this

Just wondered if anyone has had the same issues and did a factory reset sort the issue

I'm off to get the good old N95 out and blow the dust off that

JackClark

Before you do a full reset try this..

Hold down the sleep button and home button simultaneously - ignore the slide to power off - until the iPhone shuts off and the Apple logo appears.

Might do the trick and save you some time.

DARB

I tried that after the first night, made no difference

cheers

STI Mav

How many applications do you have running if you double click on the home button on the bottom ??

DARB

I have just double clicked and there was around 12 apps on there, but I thought you could only have two running at any time ??

JackClark

You can have loads in the background, it doesn't mean they're all running, most will be hibernated. Go for a full restore, might take half an hour.

hodgy0_2

is replacing the battery a realistic option on the iphone/itouch

how much do Apple charge to replace the battery?, how long do they last Jack? (on average)

Ant

If you're confident it is a job you could do yourself quite easily.

£55 through apple

JackClark

I've never known one that needs replacing, my old 3G is still going strong. Replacement is pretty simple and well documented here http://www.ifixit.com/Browse/iPhone batteries are £10 on eBay.

hodgy0_2

Thanks Jack/Ant

Mitchy260

Close your apps down, put the auto brightness function on and disconnect bluetooth if activated.

Will work wonders.

boxst

I found it depends on what applications you have running in the background: Running Skype kills the battery within a few hours.

Steve

JackClark

No kidding, when I'm abroad and have a local sim I have my UK number diverted to Skype which works great but sucks battery.

STI Mav

As noted by a few others, certain apps have a habit of draining your battery. Especially multi tasking apps such as Skype or IM based services because they have background processes running all the time.

Need to shut down unused apps and switch off Bluetooth when not in use. Tip about the screen brightness helps as well.