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Battery Life awful since 4.1 upgrade on iPh 4??

Daveoc64 said:
Genius Bar staff don't know that much.

Plenty of people have been told incorrect things at the Genius Bar.

They don't get that much training.

I'm going to try a restore from backup. I lost 70% overnight and missed several important calls.
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For what it seems on the appearance, I wholeheartedly agree that Genius bar aren't exactly that proficient at what they do, but for an over-the-counter service offering some sort of technical expertise, it's better than nothing I suppose. There was one time when I got my phone replaced, and I had to explain the nitty-gritty 'technical' bits to them - needless to say, they were bemused as I showed far greater knowledge than them.

I just charged my phone last night at 100%, and left it in sleep mode with 3G and WiFi on. Only native apps running in the background were Phone and Settings. Woke up this morning (with about 10 hours in standby mode) and battery had gone down to 97%. This is normal right? I have to state that my phone is only about a week old, so I'll probably have to wait for the cycle to be recharged a few times before it's optimised at peak performance?
 
It seems normal. I'm noticing although when in sleep mode the usage counter accounts for usage. I was at 100% this morning. Didn't get on my iPhone till about 45 mins later. Was still at 100% but noticed usage was 2 mins.

Marc
 
Not sure if it has been mentioned but my battery life was horrible after upgrading to 4.1(about 7hrs standby and it would be almost dead) last night did a full restore then setup as a new phone. This mornings stats are 5hrs standby and battery at 99% so for anyone else having issues don't restore it from a backup....
 
Okay I did a hard reboot. Battery seems to be considerably better.

Battery Perecentage: 37%
5 hours 22 minutes usage
10 hours 13 minutes standby

This is with WiFi + 3G on the whole time.
 
But if you restore the phone like it was new, doesn't Apple push 4.1 onto it anyway, I think I deleted the file so I have no way to go back, unless there is another way?
 
You guys dont need to waste your time restoring from new. Just reset your settings and your network settings too.

JulianL said:
I don't think that anyone is saying that this affects everyone. The iPad WiFi issue affected maybe 1 in 50 or 1 in 100 people but it was still a genuine issue that Apple fixed with a software update.

It's probably helpful if people without any battery issue go and vote on that poll so that people considering an upgrade can get some idea if this is a 1 in 5 or 1 in 1000 chance of having a bad experience but if that "*shrug*" was meant to be a dismissive shrug then that's not really adding much to the discussion.

- Julian
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Shrug meant go figure. Already voted on the pole.
 
daneoni said:
You guys dont need to waste your time restoring from new. Just reset your settings and your network settings too.



Shrug meant go figure. Already voted on the pole.
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I did 'Reset Network Settings', 'Reset all settings', and 'Set up as new phone'. Still had **** battery life. The hard reboot worked for me though.
 
I did a bit of a comparison with my old iPhone 2G:

Usage time: 5 hours+
Standby: 3 days 16 hours

Capacity left: 35%

iPhone 4:

Usage time: 1 hour
Standby: 18 hours+

Capacity left: 86%

My previous iPhone is like 3 years old, but it still punches above its weight - and I think more so than the current iPhone 4 battery. I do use 3G mostly on the iPhone 4, but this shouldn't drain out the battery that much quicker than if I disabled it right? If I extrapolated the data above, the iPhone 4 would most certainly reach the same capacity as the previous iPhone in a shorter time. Of course, it all depends on what the usage time consists of - but for both cases, usage time consisted of the same activities.
 
Rofl said:
I did a bit of a comparison with my old iPhone 2G:

Usage time: 5 hours+
Standby: 3 days 16 hours

Capacity left: 35%

iPhone 4:

Usage time: 1 hour
Standby: 18 hours+

Capacity left: 86%

My previous iPhone is like 3 years old, but it still punches above its weight - and I think more so than the current iPhone 4 battery. I do use 3G mostly on the iPhone 4, but this shouldn't drain out the battery that much quicker than if I disabled it right? If I extrapolated the data above, the iPhone 4 would most certainly reach the same capacity as the previous iPhone in a shorter time. Of course, it all depends on what the usage time consists of - but for both cases, usage time consisted of the same activities.
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That's very interesting. Thanks for taking the time to post those numbers.

I think that 3G is quite a bit more power hungry than 2G so that part of the comparison isn't entirely fair, but then again, as you point out, your 2G phone is 3 years old so it has a much older battery. It's hard to know if these two factors cancel each other out but I suspect that the balance is pretty close so I'm left tentatively agreeing with your conclusion, namely that the iPhone 4 might not have got back to the endurance of the original iPhone. (Disclaimer - the iPhone 4 was my first iPhone so I have no direct experience of any other model.)

In a peverse way I find the above encouraging. I would hate for Apple to get complacent about battery life and if they are doing similar analyses and coming up with similar conclusions then hopefully they will realise that they still have more work to do in delivering better battery life and we will see worthwhile improvements again with the 2011 model.

- Julian
 
Battery life is definately better on the 4, but not as much as I anticipated.

I just turned off wifi and on 3G right now to test. My brother sent me his numbers all on 3G...

3hrs usage, 8 hrs standby 55% battery, mostly surfing the net, all on 3G.

I think that is pretty good and I don't think I have been getting that kind of numbers but we'll see.

Marc
 
Hey just curious, any of you guys having issues with charging your phone? I'll leave it on the charger all night and I'll wake up to find it at 95%. After I play around with it for a few minutes, unplug it and plug it back in it then goes to 100. Only real issue I've had with the battery life though.
 
cathyy said:
Did a full reset + set up as new phone last night. Still suffering from horrible battery life. 93% after 22 minutes 3G surfing and 27 minutes standby. Gonna try the hard reboot tip later at school.
(
Click to expand...

Just another update. I did a hard reboot + full charge yesterday. After 22 minutes of usage and 25 minutes standby, the battery was still at 98%. :D
 
Install 4.1 again... Do it as Restore as NEW and don't use any of your backups, start fresh... This usually fixes any battery problems...
 
I can tentatively say that I'm getting better battery life after a restore as new phone..with 50% left, I have 4.5 hour use and 2 days standby.

Before, I was getting about 8 hours use and 3 days standby at the most on a full charge. Usually 7 hours use and about 2 days standby. Never got beyond 3 days standby no matter how little I seemed to use it.

Obviously I use my phone less than most iPhone users but the principle that restoring (so far) seemed to give me battery improvement stands.

Question: is there a way to restore as new and upgrade the OS at the same time? Like when going from 4.0-4.1, is there an option that lets you also restore as a new phone or is this something that has to be done manually after the ugprade? I can't remember.

I might be wasting my time with restore as new but even if it's a placebo, I'll take it.
 
RedburnIV said:
Hey just curious, any of you guys having issues with charging your phone? I'll leave it on the charger all night and I'll wake up to find it at 95%. After I play around with it for a few minutes, unplug it and plug it back in it then goes to 100. Only real issue I've had with the battery life though.
Click to expand...

Yes, I noticed the same thing today.

It was stuck at 95% for a long time so I restarted the phone and it went to 99% but wouldn't go to 100%. I did a hard reset and upon start up it now showed 96%. Plugged it back in and it never made it past 99% however is Usage the Use Since Last Full Charge numbers were all reset to 0.

I do seem to be getting better battery life after the hard reset or maybe it was just a problem with how it's reporting it buy I'm at 63% with 1h54m of usage (48m of that of Call Time) and 10h59m of standby.
 
HXGuy said:
Yes, I noticed the same thing today.

It was stuck at 95% for a long time so I restarted the phone and it went to 99% but wouldn't go to 100%. I did a hard reset and upon start up it now showed 96%. Plugged it back in and it never made it past 99% however is Usage the Use Since Last Full Charge numbers were all reset to 0.

I do seem to be getting better battery life after the hard reset or maybe it was just a problem with how it's reporting it buy I'm at 63% with 1h54m of usage

(48m of that of Call Time) and 10h59m of standby.
Click to expand...

I seem to be getting same battery life with 3G and wifi.

Marc
 
battery life seems to be much WORSE after the upgrade.

im not sure whether that means the battery bar is more accurate now. or its inaccurate now.
 
I just did a restore as new, will see what happens and keep you posted. I expected more than the 4 hrs of usage on 3G only that I was getting.

Marc
 
mpossoff said:
I just did a restore as new, will see what happens and keep you posted. I expected more than the 4 hrs of usage on 3G only that I was getting.

Marc
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How did you recover all your backups after restoring from new (as per your previous question)?

- Julian
 
JulianL said:
How did you recover all your backups after restoring from new (as per your previous question)?

- Julian
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I see the difference already.

First you must sync/backup before you restore as new.

After your iPhone is restored as a new device you then can retrieve all your synced/backed up stuff.

I see a major difference. I've had my iPhone on for 1. 5 hrs and still at 100% with 8 min usage. Prior to the usage was much greater at the same types of usages. I would be at 30 mins usage without using.

Will keep posted.

Marc
 
mpossoff said:
How do you recover all your back ups if you restore as new?

Marc
Click to expand...

You can't.

iTunes stores all of your Apps/Music/Videos/Podcasts etc. and will sync those over to a "new phone".

Your contacts and calendars or any other data like that may also be stored in iTunes or if you are using a service like Google Sync, MobileMe or any other Exchange account then you should be able to get that data back that way.

As for settings and progress in Apps (like how many levels of Angry Birds you have completed), that would be lost.
 
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