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I need help as I have the worst battery drain. Last night the battery drained out while on standby. I read on this board that you should set up the device as new and not from a backup/ I then restored iOS and set up the iphone again as a new phone. Right now I am losing 4% battery per hour on standby. That is with iphone 3G & a WIFI connection set to on while it is just sitting on my desk. I have location services and mail fetch set to off as well as bluetooth set to off. Does anyone have any suggestions on what else I can try? Could I just have a bad battery?
 
Ok, it seems like a bug/glitch with my phone - after I restarted the device the battery starting draining "like normal".

It seems as though it was running some process (even though I checked the apps running, it was empty...weird...) but anyway it seems to be ok now and i'm almost ready to do a full charge (2% left on the battery)
 
mine seems fine
 

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I will certainly have to give it a few more full charges to full drain before I make up my mind... but so far Im not feeling that this new battery is living up to what was promised. i will try and take a few screenshots of my usage and stand by, but I really dont feel like Im getting more battery upgrading from a 3G. Why is my battery draining itself overnight? I went to bed around 1am last night and have lost around %10 upon waking up this morning. That never used to happen to me... I thought standby was AMAZING on this new phone?

So far I dont feel like Im doing anymore than I used to on my old phone except for HD video and pics. This is only my 3rd time charging but Im still feeling a little let down so far. I keep reading about other users with amazing battery life so far and mine just doesnt seem to be showing the same results...
Ive honestly felt that maybe its the change to 4.0? if this problem persists after a week or two I will be taking it back in to the :apple:store to see what they say...
 
You're in better shape than me. I am losing 4% per hour on standby and I can't figure out why.

Something is wrong... I used to go 1.5-2 days in between charging my 3G. It was like that for the first year and a half of owning it. The last 6 months have been drastically different. It became common place to not even make it through to the halfway point of my day before it required more juice.

This is why I was so excited and READY for better battery. But Im not noticing that its much better than what my 2 year old 3g can do for me.. and it should NOT be noticeably draining battery overnight... This thing has a freakin huge battery in it yet I'm still having to make sure I dont use WiFi unless I absolutely need it, and ive kept the display brightness at 50% maybe 60%. Really hoping that the battery will level out after a few cycles and start giving me the performance it should be showing otherwise I might have to threaten it with an exchange!!
 
Something is wrong... I used to go 1.5-2 days in between charging my 3G. It was like that for the first year and a half of owning it. The last 6 months have been drastically different. It became common place to not even make it through to the halfway point of my day before it required more juice.

This is why I was so excited and READY for better battery. But Im not noticing that its much better than what my 2 year old 3g can do for me.. and it should NOT be noticeably draining battery overnight... This thing has a freakin huge battery in it yet I'm still having to make sure I dont use WiFi unless I absolutely need it, and ive kept the display brightness at 50% maybe 60%. Really hoping that the battery will level out after a few cycles and start giving me the performance it should be showing otherwise I might have to threaten it with an exchange!!

I think the next thing I'll do is delete all my apps to see if one of them is causing a problem. Though I don't see how they can if they don't use notifications.
 
Hi guys,

Just got an iPhone4 and it's working great, except for one very strange problem. Despite everyone's reports of great battery life, but some odd reason, my battery is draining extremely quickly. So last night I charged it on itunes for 4 hours (basically to full), and today took a few pictures, checked twitter over 3G, made 2 short phone calls, and voila, I am at 50% battery This happened yesterday too but then I thought it was because I was keeping the phone inside a bag inside a cabinet, so maybe it was search for reception (but today it's left out the whole time). Any ideas what might be happening, or is anyone experiencing anything familiar?? I am not running pandora in the background or playing any games, so what gives?

Thanks!

ps: still loving the iphone4, despite this
 
Ok here is a tip, you should probably do one full drain I have not yet and my batterie is not as good as my 3gs, yet Im sure it will be better in the long run.

That wasnt the tip, here it is.

Your phone will charge better when it is off, and in a wall socet not your usb. You have to plug the phone in first, then turn it off, or it will turn back on when you plug it in. Let it charge all night in the off position and see how much longer the charge lasts. I did that with my 3gs and almost doubled the battery life.

(for some reason on the USB it wont fully, fully charge)
 
7.5 hours off charge

No talking
Less than one hour use
70% remaining
Crappy signal

I think the last two have a little bit in common. Sad, because my 3GS had a significantly better signal at this exact spot two days ago and for the past year. I also activated in this same spot and noticed the signal was not as good immediately. I've also restored since first activation. Same mediocre signal.

Talked to another iP4 user in my office and he griped about the signal without solicitation. It's just not as good, and I believe it has to do with a combination of Apple's software and AT&T's towers. I don't think I'm using the same tower anymore. Shame.
 
I just started a post about waking up to an almost dead battery today when I went to turn the phone on. It was about 86% when I turned it off last night and went to bed.

How do I find out if anything was running all night? Doesn't the top switch turn everything off?

Just looked up Usage and it says 12 hr 35 min since last charge.
 
I just started a post about waking up to an almost dead battery today when I went to turn the phone on. It was about 86% when I turned it off last night and went to bed.

How do I find out if anything was running all night? Doens't the top switch turn everything off?

Just looked up Usage and it says 12 hr 35 min since last charge.

Only way to turn it off is to hold the top switch for a few seconds then use the "Slide to power off" control that appears on the screen. Even if the damn thing is in standby it should not drain overnight. I'm fooling around with mine now to find a common denominator in all this.
 
Only way to turn it off is to hold the top switch for a few seconds then use the "Slide to power off" control that appears on the screen. Even if the damn thing is in standby it should not drain overnight. I'm fooling around with mine now to find a common denominator in all this.

Ah, that's what it is then. I never saw the "Slide to power off" control. I simply used the top button.

Mystery solved
 
I have 1 hour 57 minutes of use which is a mix of email and phone calls
8 hours 34 minutes standby
I have 68% left

I expected better numbers than these
 
14% left, 7 hours 3 minutes usage, and 30 hours of standby. This isn't my original charge, and I did reboot the phone once.

*edit*
I should note that I have push email going 100% of the time.
 
Try setting up as a new phone (you can always restore your settings afterwards).

Sometimes a backup/restore between phones corrupts settings (particularly if you have jailbreaked) and this can lead to runaway processes eating battery.

The battery on my phone seems great!
 
Try setting up as a new phone (you can always restore your settings afterwards).

Sometimes a backup/restore between phones corrupts settings (particularly if you have jailbreaked) and this can lead to runaway processes eating battery.

The battery on my phone seems great!

I activated my iphone4 as a new phone. Then Right clicked on the phone icon in the left column and said "restore from backup" was that the wrong way to go about setting up my new device? Seems silly that I should have to forgo my settings and contact data just to set it up completely barebones...
Do I really have to set this thing up as a completely new phone??
I should mention I have jailbroken an iphone or 2 in my time...but for the last year I have been running my 3G completely stock. I'm aware that there may be lingering bits of the jailbroken OS but could these even make it onto a fresh 4.0 install? And how would this be related to my battery all of the sudden, now draining power over night when this never happened on my original iphone or my 3G?

I lean way more to the side that maybe 4.0 and multitasking isnt quite what they said it was yet... Im hoping a patch or fix gets pushed out soon!
I should mention that for the first time ever since its been offered I have turned push email off...in order to conserve battery on my NEW phone..
 
I activated my iphone4 as a new phone. Then Right clicked on the phone icon in the left column and said "restore from backup" was that the wrong way to go about setting up my new device? Seems silly that I should have to forgo my settings and contact data just to set it up completely barebones...
Do I really have to set this thing up as a completely new phone??
I should mention I have jailbroken an iphone or 2 in my time...but for the last year I have been running my 3G completely stock. I'm aware that there may be lingering bits of the jailbroken OS but could these even make it onto a fresh 4.0 install? And how would this be related to my battery all of the sudden, now draining power over night when this never happened on my original iphone or my 3G?

I lean way more to the side that maybe 4.0 and multitasking isnt quite what they said it was yet... Im hoping a patch or fix gets pushed out soon!
I should mention that for the first time ever since its been offered I have turned push email off...in order to conserve battery on my NEW phone..
I restored from my 3GS backup without any issues, and have great battery life. I also have push email going 100% of the time as well. What week was your phone manufactured? Mine is a week 25.
 
Some of you guys sound like misinformed drivers who think their gas gauge is linear. (i.e., "I've driven 200 miles at half a tank, therefore I must be able to drive 400 miles on a tank).

I'm not certain, but I wouldn't ASSUME the battery meter indicator is linear...

Nonetheless, I seem to be getting pretty darn good numbers. I ran my battery completely dead last night, and then charged it fully overnight. I've been using the phone VERY heavily today, on purpose. Just to see how it does, I set everything up pretty much to its full extent and made an honest noted effort to "document" everything I've done:

Screen on FULL brightness

3G ON

Location services ON

Notifications ON

Push ON

Pandora streaming via 3G the WHOLE time I've been using it (obviously unless it won't during phone calls, HD video, etc.)

About 10 minutes of Madden '10

47 minutes of phone calls

Making a point of using Safari nearly the WHOLE time I've been simultaneously streaming Pandora

About 120 total texts sent/received

2 MMS messages

5 e-mails received, 1 e-mail sent

About 10 minutes total time spent on the Facebook app.

3 HD pictures taken, 27 seconds of HD video taken

29 640x960 wallpapers saved to phone from the wallpaper thread, set/changed wallpaper and lockscreen 4 times

I'm currently at 5 hours and 7 minutes of usage, and just hit 20%

Personally, I find this downright impressive, especially considering how the majority of the usage time has been VERY data-intensive over 3G, with full brightness, notifications, push, etc. all on. :eek:
 
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