Should I be worried about my iphone's battery life?

I went to sleep when my iphone's battery was on 60% and I woke up with it on 9%. I left the wifi on, but I still think the battery dropped too much in just a few hours without me even using the phone. Is it normal or should I be worried?

There's no way for any of us to be able to tell.  "Normal" battery life is dependent on settings.  Evaluating what is normal requres specific evauation tools.  Those tools will take your settings into account.  If you have some battery sucking settings, the situation you have described would be considered normal.
The blog linked below has some very useful information about maximizing your battery life.
http://www.overthought.org/blog/2014/the-ultimate-guide-to-solving-ios-battery-d rain

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    Internet use: Up to 6 hours on 3G (16.6% per hour drain), up to 9 hours (11.1% per hour drain) on Wi-Fi
    Video playback: Up to 10 hours (10% per hour drain)
    Audio playback: Up to 40 hours (2.5% per hour drain)
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    I can't tell if this is the single answer to the widely spread battery draining problem, but it sure can be fixed with these workarounds, and yes, Apple should address the problem with a future update, for we affected customers don't need workarounds in the first place
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    2. Fully draining the battery, meaning using the phone until it shuts itself off from a drained battery and then recharging it to 100% about 4, maybe 5 times. I charged it both with a Mac and a wall charger.
    Hope this is helpful!
    Comments
    jmm514 remarks (Twitter):
    I may have found something. I had Twitter disabled in my notifications, but got a tweet today that popped up on my home screen. Didn't know I had this enabled. At the bottom of the Twitter notification settings is the home scrren toggle. Since disabling this, battery life seems better. Considering there is no setting for frequency of checking for tweets, it appears the phone is continually connecting to wifi to check for new tweets.
    tmksnyder comments (notifications, corrupt data in iCloud):
    For me, I found my iphone on wifi mysteriously connecting to my mac.  I eventually narrowed it down to the Apple Move Trailers app which keeps a file in iCloud.  The phone was trying to sync the file with the mac in the background even when the Movie Trailers app was closed (hitting the red x).  Based on my macosx logs the iCloud process that was trying to sync was working directly between the phone and the mac without using itunes by connecting to an https address hosted on the phone.  It was connecting every 3 minutes and failing (while phone was awake or awake during during a notification).  I also found that iCloud control panel on OSX would error if I tried to delete the file.  I fixed it by removing the App and doing a hard reset which stopped the sync.  I probably could have turned off iCloud document sync in the phone but didn't think of that.  My battery life has greatly improved while at home on wifi.    I am now at 28 hrs standby, 2 hrs 20 minutes of usage, and 68% battery.  It was ok before where I could get 20-30 hrs standby and 6 -8 hrs usage.  My usage today was phone calls, 3g surfing, and music via bluetooth in the car.
    I also found even with Itunes iMatch, if I mass updated tages, art work etc, it would hit the phone on wifi even in standby.  I was amazed.   Granted if I am not doing updates, Match won't hot the phone so this was a once in awhile event.  I could drop my percentage by 5-10% in a matter of minutes when doing updates.   I think a lot of our problems are background processes, associated with iCloud, notification, and apps.  More features means more battery.   I think the key thing is to keep track of what has recently been added or changed if battery life gets worse all of a sudden.   It may be an app that was recently installed and if possible you may want to completely remove it and not just quit it.
    With twitter, i think it uses push notifications so it doesn't need to be running and actively poll on the phone. For instance , if i quit the mail app, i still will get mail notifications and can swipe the message and load mail. Apple Push Notifications servics maintain the connection to the phone and there are likely pings or connection checks  that occur for the service on an os level not an app level.  This minimizes the load so there arent a bunch of apps all runing and constantly checking.  The notification service , if it is contacted from twitter or another service with data, will check the settings you have registered to the with the apple push service and send the notification to your phone.  No matter what, there is a drain with notifications. M hunch is once one application is configured to receive notifications, connection checking occurs betwen the push service and the phone so it knows where it is on the network. If it is implemented correctly, these checks arent frequent if you are still and more frequent as you move. The other drain is for when the noification hits and is processsed.  If i get 9 emails over night, my screen just popped up for 20 seconds or so to process each message using battery.  I would even think that just go from low power to turning n the screen uses more juice than if the device was already on and i get the message.  On nights I get no notifications, I see a 3  or 4 percent drop.  On nights with a number of notifications, i have seen up to a 10 percent drop.  Besides notifications, wifi sync and icloud will poll on the local network and use up battery if the host computer is on and running itunes or trying to sync a data file that is corrupt (which i had with the apple movie trailers app causing my phone to drain).  For me turning off wifi sync and remving a corrupt file in icloud solved my battery issues and I get over 24 hrs of standby with 6 to 9 hrs of use and this is with all the normal location services and push serivices turned on.
    See http://developer.apple.com/library/mac/ipad/#documentation/NetworkingInternet/Co nceptual/RemoteNotificationsPG/ApplePushService/ApplePushService.html for more info.  I think it has a good overview of how the notifications work.

    Well seems like that rumor of iOS 5.0.1 is finally gone the way of the dogs since developers got a beta of 5.1. So as stated earlier in the master discussion-> I suspect if you are filling up this thread with false post or creating a master set of links to various post that are unreliable you are wasting your time. Press is not going to touch the story due to poor or inaccurate sources which may be links from the master thread. This can include inaccurate information, combination of conflicting post or postings from users which may not own the device. Reputable press organizations have policies that require discloser and strict rules about what is a reliable source for a story. It is clear that many of the post in the master thread, which are links presented here are questionable. 
    Sorry to say that postings taken without any analysis of their totality have been propagated via various sites, for example sites such as http://www.2012federalbudget(dot)com. (Do not visit but I suspect that this is not the 2012 federal-budget site you would expect based on analysis of the records. There are plenty of sites like http://www.2012federalbudget(dot)com propagating questionable post in these threads.) One site for example in the discussion thread used a self signed certificate, the site had a log in to allow users to enter their OpenID. Seems many of these sites are pop and drop drupel configurations.
    So remember this is how the really bad rumor of iOS 5.0.2 got started, the 5.1 memory leak issue, iCloud Issues, call quality, address book, etc.
    Some of the postings have been very comical, I think the latest now is a dropbox issue. Seems that the length of the previous thread has resulted in various app engines of some proxy servers/tools reaching their limits.
    So I would make sure to know the source of any information you link to. Make sure you avoid entering any information to outside links such as OpenID or Apple ID, these are big prize items for anyone with malicious intent.  If you have issues and are a valid user contact APPLE CARE. (Note link is using McAfee Secure Short URL Service, and is https.)
    http://mcaf.ee/ricdt
    The original solution still represents a high level of success for users having any battery issues.
    Install 5.0.1 on your iPhone 4s. Some users posting they are still using older versions, bad fake serial numbers, etc.
    Make sure your device can run iOS 5.0.1 and is not altered.
    Make sure you use a new Sim, not some cut down version which many users admit to doing. (Again, worth confirming what people are posting.)
    Reset the device doing a hard reset and software reset.
    Let battery drain and then charge for the full cycle, which is 24 hours.
    I think you will find you will get the battery usage that APPLE has stated for the device.
    Best of luck, stay safe and thanks

  • HT201401 After io6 upgrlade on my iPhone 4S battery life is about 1/2 what it was. I turned wifi and Bluetooth  off and screen brightness down low. After about 4 hours battery is dead. Also my screen enlarges randomly and only way to fix hold lock back ke

    After updating to iOS six my iPhone battery life is about a third of what used to be. my screen enlarges the font and I can't make it go back to a smaller font without totally doing a hard reset

    Are you asking a question here?
    Batterly life has been discussed ad nauserum on this forum.  Please use the search box at the top right hand corner of this page.

  • Is anyone else having a problem with the iPhone 4s Battery Life?  My 1 year old Iphone 4, which I gave to my wife, is holding a charge better and she has been using it far more than I've been using my 4s

    My wife preordered a white iPhone 4s for our anniversary and even though it is preloaded with the ios 5, i am a little disappointed.  The battery doesn't seem to hold a charge well at all. I have had every other iphone except the 3gs and have never had such a poor battery life.  I owned the iPhone 4 for a year, and already know all the tricks to hold on to battery life, I have adopted the habit of closing out any apps that weren't being used, my mail push notifications are set for hourly, wifi and bluetooth are turned off when they aren't needed.  I also stay away from any car chargers, use only the apple brand supplied cables, and only charge when the phone is dead.  I only would sync when the phone was about to die as well. 
    When I saw how fast I was burning through the battery, I turned off Siri, which is kind of the purpose of the new iPhone, and turned off the backing up to iCloud.  I barely used my phone today and the battery kept ticking down.  My wife, who has been stuck with an iPhone 3g for years, has been fascinated with my old iPhone 4 and has been browsing and playing games and her battery has been holding a better charge than my new phone.  I even tried turning the phone off for an hour when it was at 18% and when I turned it back on, it was at 15%. My iPhone 2, which is only being used as a touch iPod now, still has better standby time than a brand new iPhone 4s. 
    To be honest, I am usually a heavy phone user.  Throughout the day I will make and receive at least 50 calls, I browse and check websites daily and watch videos sometimes during my downtime.  But this weekend, I haven't even had the chance to put this phone through the same abuse my other 3 iPhones have had to endure. 
    I just want to know if anyone else has this problem, or if I should just return this one.   

    I had major issues with the iPhone 4s battery, however it’s resolved.
    The tech who set the phone up at the Apple store did so with little training.
    if you have a mobile me account. First go and move all your data to the cloud by going on your computer and logging in at me.com/move. The cloud has replaced mobile me, so there is no need for those two accounts
    Also make sure that for any of your email accounts you set them up to fetch, not push. My tech person set them all to have the email servers push data to the phone. The new iphone4s antenna is extremely strong so it will continually try to access stuff that is pushed–***** a lot of battery life doing this. It makes it worse if you have exchange 2010 accounts. Something about changes made to exchange really suck battery life from devices that access such accounts.
    turning of locator and the push notifications from facebook--they have a lot!

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