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People who send the odd text and who make the odd phonecall, or even those who are perfectly happy because iOS7 'gets them through the day' don't understand the issue that some of us have with this battery drain thing.

Power users who really hammer their phones using many of the features on an hourly if not per minute basis, are fully aware how long their batteries lasted on iOS6. Now if we had lost ten or fifteen minutes through the update then I dare say that none of us would be complaining but most of us are at least one full hour down on runtime and that's with ALL the new features switched off. Many people are experiencing shorter battery life on iOS7 of two or three *hours*! That is completely unacceptable, even for die-hard Apple fans. Why should we roll over and accept performance akin to that of a heavily used three year old battery when we have a relatively new iPhone 5?
 
2nd cycle on iOS7 from a clean install.
 

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Siri Raise to Speak culprit?

Digging through settings I found SRtS. If the iphone is constantly checking the accelerometer and the microphone/light sensor perhaps this could be a big leak?
 
Siri Raise to Speak culprit?

Digging through settings I found SRtS. If the iphone is constantly checking the accelerometer and the microphone/light sensor perhaps this could be a big leak?
Not sure if this is the culprit as I have Siri turned off completely as I don't use it.

Adam.
 
We'll I didn't quite get 7 hours like I thought I might, I reckon it would make it to 6 and half? still it's not too bad, although it could be a little better.

Adam.
 

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I can get 7.25 hours of solid WiFi surfing. No You Tube, no videos, just straight web browing of newspapers and forums. This is with *everything* switched off. With iOS 6 that would have been 8.5 hours. There is something wrong with iOS 7 so far as I'm concerned. My phone always feels warm, not hot but warm and the battery life although not shocking is way down on what it used to be three days ago. This is a clean install with no issues on that front as I have done it twice now.

This is today's battery life, which is worse than yesterday. All of it WiFi browsing and most settings off.

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7 hoursof usage :eek:

With ios 7 for me it's more like 3.5 hours :(
I don't remember how was with iOS 6, but it was definitely more than that.
 
7 hoursof usage :eek:

With ios 7 for me it's more like 3.5 hours :(
I don't remember how was with iOS 6, but it was definitely more than that.

Considering the iPhone 5 is supposed to give 10 hours of WiFi usage and that on iOS6 I used to get 8.5 hours, I would say that scraping 7 on iOS7 is pretty poor.
 
Oddly enough, 30 minutes after typing this I recorded a small 2 minute video. My battery life was 38% and one minute into the video I got the 10% battery remaining warning (never got the 20% warning). Stopped the video and noticed my battery percentage was 5%. In other words, my battery life went from 38% to 5% in 2 minutes using the camera app.

I had the same thing happen. After talking to Apple, having already tried calibrating the battery and restored the phone, they sent me a replacement phone. So contact them and see what they say.
 
Standby and WiFi usage seems to be Ok on my iPhone 5. However, 3G usage seems to result in very fast drain in the order of 1% every 1-2 minutes. Is anyone else experiencing that?
 
Standby and WiFi usage seems to be Ok on my iPhone 5. However, 3G usage seems to result in very fast drain in the order of 1% every 1-2 minutes. Is anyone else experiencing that?

Yes.
As for WiFi usage, are people just checking the first 10% of battery power? Mine performs ok from 100% down to 90% but then the drain increases much faster from there. The battery drop isn't linear at all. At 90% it looks like I'm heading for a decent usage time but each 10% thereafter drops much quicker. The final 10% seems to last around 5 minutes whilst the first 10% lasts almost an hour. I have calibrated my battery six times in succession now, letting the battery drain to zero and then charging it fully before use.
 
Perhaps MPTCP needs refinement or switching off on 5, 4S, 4? It's built into the ios now.. Maybe that's the big under the hood change that needs attention? Like running wifi + cellular simultaneously is only going to increase consumption..

Just putting it out there..

http://appleinsider.com/articles/13...ng-advanced-multipath-tcp-networking-in-ios-7

Going to turn Siri off for a few days and see if my phone still tries to keep both radios up to connect with apple.....

EDIT: nope!! MPTCP appears on to be used for icloud login, push and Siri.

Battery drama explained?
 
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My battery life is okay for now :D we'll see after some time :p

Usage: 6 hours
Standby: 1 day and some ..
 
Mine seems to be doing ok now, seems more times I charge it, the better it gets.

Adam.
 

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Overheating as well

Related to the battery usage, my phone shut down today due to overheating. I was running navigation software on an iPhone4. Never happened once under iOS6.
 
Mine seems to be doing ok now, seems more times I charge it, the better it gets.

Adam.

That's nothing special at all and if your phone is anything like mine under iOS7, the second 50% of battery life drains a heck of a lot faster than the first.
 
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