I've been having problems with my iPhone battery for over an year. My previous phone was an iPhone 4 running IOS 5.1. I tried every single idea I ever read about in a community forum, in a website, and stuff that other people simply suggested. Turning off location services, turning off Bluetooth, disabling or killing every application I was not using. I kept notifications to a minimum. I reset the network settings on my phone, erased and reinstalled all my e-mail accounts, and just plain reset it dozens of times.
Recently in a forum I read about a person that found a corrupt file that kept Safari on iOS running a loop,and therefore maintaining the processor busy and supposedly consuming more battery. He recommended not using Safari and using any other browser instead. However, this did not help my battery drainage problem. My phone was constantly hot. In order to help out a little I bought a Mophie battery case to help me get through the day with a powered phone.
I roughly calculated my battery to drain 1% for every two minutes and 20 seconds. So in just under two hours my battery would drain 50% simply being in standby.
I upgraded my iPhone 4 to iOS 6 in hopes that it would resolve my battery problem. I saw no change. About three weeks ago I bought an iPhone 5 and again hoped that this new hardware would not have the same battery problems I've been facing for over a year.
My three kids and wife all have iPhone 4s yet I was the only one having the battery problem. So this past weekend I was thinking what is it that I have in my phone that my kids and wife don't. It suddenly occurred to me that I am using a mail account that connects to a Microsoft Exchange 2003 server. So initially I deleted the account altogether to see if there would be any improvement.
I noticed very soon that my phone was getting cooler to the touch. And within half an hour I already knew that my battery was now draining at a normal rate. I tested further; I added the Exchange account again but this time I chose for the mail messages to be fetched rather then pushed to my iPhone. Again, I noticed that I was able to keep my mail account active and my battery was operating normally.
Finally, I configured the account once more for mail to be pushed. Within five minutes my phone got hot again and was once again draining my battery very quickly. So voilà! IFinally found the culprit of my predicament. It has to do with mailed being pushed to this account. I also have my iCloud mailbox active which is set to Push by default. It seems to have no problem with this.
I hope this helps people out there with the same problem. I would love to know if other people see the same results I saw.
My wife and I have iP5's and hers has suddenly started draining battery very quickly ... from full charge in afternoon to very little left by evening with hardly any use.
Mine is still at a reasonable level but not noticeably better than the iP4S IMHO.
What is really odd is this started happening out of the blue, so I can't see how this can be a corrupt restore/setup of the phone initially. I recall similar issues came up when the IP4/S came out and were subsequently resolved.
Unacceptable tbh... esp given the premium paid for the device.
The battery life on iPhone 5 (more likely iOS 6) has been terrible. No question.
I do not believe it's a hardware problem. It's very easy to have the battery drained with a small bug. Weather or not this could be prevented before iOS 6 release, again is up to the discussion. What is certain is that these are complex problems that potentially need a lot of user data to address.
What I found really helped in my case is that I close all the apps that I am running except a couple of them (e.g. phone, iMessage and mail) as soon as I am done with them. Normally, if worked correctly these should not have any impact on your battery. Apps when go to the background (get suspended) are not supposed to use any processing power and they should be terminated once memory is needed. However, I think for some reason they do leave some lingering processes, which causes a battery drain (have no evidence about this, just by experimenting). This has made a really big difference for me, so maybe give it a shot.
Apple usually prefers to spend the time working on issues rather than taking the time responding to user's complains, which would ultimately make almost no difference as the problem will still be there. However, in some cases I find it frustrating that a problem is left unacknowledged. If there is an issue, say there is an issue and work on it. Be transparent!
I am almost 100 percent my problem is due to some sort of issue when I'm not on a wifi connection, when I am on a wifi connection I could probably get about 10 hours of usage on my phone, however when I am on cellular network I probably could get a max of 6 hours on a good day. I do not have lte in my area but the phone does say 4g. There are occasions where I will get into an area with just edge but I don't use my phone when I get into those areas. I have lte turned off and have even experimented turning off all of the system location settings, but this doesn't do any good. I really hope apple fixes this soon.
Yes, the issue is 100% related to cellular data. IMO there is no question about it.
It's not specific to LTE or 3G, it's just cellular data in general. Even having it on while on Wifi drains the battery.
Turning cellular data off, I can get up to 12 hours usage time. With it turned on, and spending a day away from Wifi, I can get as little as 4 hours usage.
I have no idea why cellular data should drain the battery so much more than Wifi. With my iPhone 4, I didn't notice any difference between the two.
So yeah, forget turning off all the features, just turn off cellular data, WHEN you need to preserve battery.
So I swapped my phone and the battery drain problem is still there. From 7.30 PM (when I unplugged it with a full charge) to about midnight it drained to 33% with really quite light use. Just some emails and texts, no calls. Overnight it drained to nothing.
This is either a software problem or there is a huge batch of defective batteries in the US and Singapore (at least) and they have done nothing to take the bad batteries off the market.
I tend to think it's software though because besides the fact that the battery drains quickly the phone is always hot as if something is really taxing the CPU even whent he phone is doing nothinng
I have all my notifications and location services set to a minimum. I don't run apps in the background. I haven't done much with this phone at all and it never lasts through a single work day (not the old one or the new replacement). I never do gaming.
All of that said because its' only happening to some people it must be an app... but which one?
I don't know if the issue is "100% related to cellular data" or not. The battery life is better on WiFi only or no data at all but it still isn't great by any stretch of the imagination.
The battery life is just atrocious on two phones now. Apple: Acknowledge and fix!
I do think there are a few problems out there (including some users who likely have faulty hardware) but wireless signaling is DEFINITELY a problem. Here are two situations I have come across so far:
1) I have turned off LTE and had the iPhone 5 last somewhat longer than when it is on. What really blew it away was when I put the phone in airplane mode. The battery lasted much much longer. My question is this - with EVERYTHING turned off on my phone (no push/fetch/alerts/diagnostics, etc) what is Apple doing with IOS that is making it send or receive data while we aren't watching? Are they deliberately sending data back for the first few months to see what trends users are doing, and then remove that later by calling it a "battery optimization patch?" I know this sounds "conspiracy-ish" but I also remember in previous versions Apple was tracking everyone's move with the GPS. I wouldn't put it past them again.
2) This is definitely the BIGGER problem. I'm noticing this more and more and find it to be one of the biggest battery drains so far. When you travel from tower to tower, the wireless radio does not handle it very well at all! Whether you do it with Wifi or with just cellular, the transition somehow gets stuck. Here's what I mean:
When I was driving in my area recently, I had forgotten that I had WiFi on. My area is littered with Cablevision (OptimumOnline) hotspots (thank you Cablevision!). I was using a nav program when all of a sudden I saw it latched onto a hotspot. Nav worked fine for a few minutes and then it stopped working. This happened right when the wifi hotspot disappeared and the phone would not log back into the 3G or LTE network (Verizon). I literally had to put the phone in airplane mode and back out, in order for it to work again. Recently I traveled from Washington DC to New Jersey on a train. I had signal most of the way but every time it transitioned from one tower to another, the phone would hang and I couldn't get mail or text messages. I again had to put it into airplane mode and back out. Something is not handling the transition very well and when this happens, you get the "spiral sphincter of death" that can go on for a long time, draining your battery. Many times throughout my trip today, I had to put the phone in airplane mode and back out, just to get my text messages because they weren't coming in until I did that.
Surely there are hardware problems for some folks, but I am positive that there is a wireless problem with this phone - worse than I've ever seen on any phone. (and I've used virtually every smart phone platform out there, for years)
It's all related to cellular data.
I just got a new iPhone 5 here in Sweden, DFU-restored it without any apps then added Facebook, LinkedIn, Spotify, Parcel and a couple of bank-apps.
I didn't need to switch off cellular data now since I don't have any apps running and iCloud is turned off. I'm now seeing better battery time. It's not awesome by any means. Just better.
The biggest issue is that there's something corrupt with cellular data, might be in place for Apple to automatically switch it off if a user has internet through WiFi. That would make a lot of users much happier.
If I switch off cellular data while on WiFi I'm pretty sure that I'd be seeing the usage stats that some people here are talking about, meaning 8h+ of usage.
What I'm noticing is that the more you use your phone, browsing, social networking the better usage stats you get. You get either good standby, meaning 1 day, or 6h of usage.
It needs to get fixed. I'd like to see the 6.0.1-update coming this month.
Here's my usage so far this morning.
I'm doing a test with cell data turned off. It is much improved but I'm not sure really up to par. It behaves the same way just drains less quickly. It stays at 100% for quite some time but once it starts to drop it really drops fast even if it's not being used. Now not as fast as with cell data on, and the phone is no longer hot but it doesn't seem like it properly really "goes to sleep" when it's not being used.