A week after the release of iOS 5.1 beta 3 the biggest question that seems to be getting asked repeatedly is one that we have become accustomed to ever since the release of iOS 5, back in October. Yes, you guessed it – is the battery life any better yet?

We have been talking about battery life in iOS quite a bit since the issue first reared its ugly head, and we’ve discovered that it isn’t just an iPhone 4S issue, but rather something Apple changed in iOS 5. Since then the company has issued a full update in iOS 5.0.1 and a series of iOS 5.1 betas, but has the latest improved things any? Can we expect to get back to iOS 4.x-levels of battery life?

Well, no, not really…

I’ve been using the beta 3 release of iOS 5.1 with my iPhone 4S for a week now, and in my testing at least, not much has changed by the way of battery life.

What I mean by that is that the iPhone still has its good and its bad days, just as it has since I started with these betas from iOS 5.0 and onwards.

Some days I find the handset still buzzing along nicely at the end of the day, with 20% or more left in the tank. Others, I’m hunting for a power cable by the time I get home from work.

At first I thought that the key differentiator here was the use of 3G or Wi-Fi, with the latter giving better results when it comes to battery longevity. That has recently been disproved, at least in my case. That said, there is clearly something going on from day to day that is causing an iPhone with the same usage patterns to vary wildly in its use of power.

At this point, iOS 5.1 in its third beta, I find myself wondering if this is as good as it is going to get. Has Apple thrown its dice as many times as it can, and we are going to just have to get used to where we are now – unpredictable battery drain?

There is also the unusual drain that occurs when the handset is idle. Last night, for example, I left my iPhone off-charge overnight with 25% of its battery remaining. I awoke this morning to a battery with just 2% left in it. A few emails had been received, but that is it. Where did the 23% go? Yes, I know these things aren’t always accurate, but that is a considerable drop for an idle handset by anyone’s measure.

While not causing any great headaches, it is an indisputable fact that my previous iPhone 4 would routinely last a couple of days on a full charge before iOS 5 began to drain a lot of power around the time Apple released the GM version of its new OS. After that, the issues began.

I’d love to know what Apple added during that release, but we’ll probably never know.

How is your battery life now the dust has settled on the iPhone 4S release?

  • @Oliver Haaslam

    Great read buddy, kudos for the work put in.
    However, I must confront you with a couple of facts 😉 :
    1) it is widely known that you cant judge an OS version by its beta versions. All you can gather from beta versions are general impressions.
    2) I agree that there are serious battery draining issues from iOS 5 and on so far, but the true test of battery life will be either in the 5.1 GM version, or 5.1 itself. Till that happens, all we’re doing is speculating.

    Im not saying Apple will definitely fix these issues in 5.1, all Im really saying is
    you cant judge an OS version by a beta, since they are buggy and incomplete to begin with.

    Thanks for the update, nonetheless.

    Jack

    • Not to mention Betas are full of debugging software that runs in the background. Most Devs know this.

    • Anonymous

      i want to ask,,,
      when i upgrade my jailbroken iphone4 to 5.1 i need to repurchased my purchased tweaks again?
      plss… give me idea..

      • gvpinn

        not, they are saved in your account, so you will be recognized again for download

      • Anonymous

        THANKS MEN:) YOUR THE BEST…

    • Anonymous

      hello,, i have a question,,
      when i want to upgrade my jailbroaken iphone4 to the latest unthethers jailbreak,, do i need to repurchase my purchased tweaks again?
      pls.. i need answer,,

  • Anonymous

    The battery issue reminds me of what I went through with my 3G and iOS4. Apple knows there’s an issue, does something they think will help, then just moves on whether that fixes the issue or not. I have an iPhone 4 now and I’m reliving the sequence.

    • Anonymous

      hello,, i have a question,,
      when i want to upgrade my jailbroaken iphone4 to the latest unthethers jailbreak,, do i need to repurchase my purchased tweaks again?
      pls.. i need answer,,

      • Taylor Harris

        No. Purchases made in Cydia are saved with the account you signed into to purchase them (Facebook, Google…). All you do after you upgrade and open Cydia the next time is go to “Manage Account” on the home page of Cydia and you can install your previously purchased packages. Try posting this on a more relevant topic next time. This isn’t related to iOS 5.1 battery issues at all…

  • Same issue with battery life on my iPhone 3gs (along many RAM issues), my iPhone 4, and ipod 4th gen. I really dont care about notification center and other then that, I haven’t really seen what the big deal is with iOS 5. I’m really thinking about downgrading bucz this sucks!

  • Another battery improvement update right when a jailbreak its about to be out? Its seems to me like apple its just fooling people into updating there devices so that they cannt jailbreak. My 4s is doing just fine here so no thanks apple, I’m jailbreaking as soon as its out!!

    • Anonymous

      lol…Apple scare tactics. Good stuff JC!

  • Dan

    my battery has been fine and I don’t notice a difference from 4.3.3 to 5.0.1, the only thing I watch out for is intensive animated tweaks that drain battery.

    At the end of the day, I’m usually around 60%. If I’ve been bored at work (and played a lot of 3D games), then i’m around 20%.

  • iMesasage is the real battery drain vampire in iOS 5. I wish they’d fix it.

    • Taylor Harris

      Is that so? How did you discover they iMessage is contributing to the drain? If that’s the case then I’m going to disable it.

    • Nice try cellphone carrier!

    • How can iMessage not drain the battery? An app that constantly polls the Internet to check for new messages.

      • Anonymous

        Sorry, but, year 2012… What DOESN’T constantly check the Internet?

      • Not quite. It still uses APNS just like Facebook/Twitter/etc does. It doesn’t constantly poll, it’s pushed. Using a connection your iPhone has already opened.

  • Anonymous

    I’ve fucked iOS 5 off and gone back to 4.3.3, at least with that I don’t get the odd random reboots or the huge memory leakage that happens, not to mention that I don’t give a shit really about Notification Centre and anything else is only a tweak away.

  • Eric Morgan

    Go into settings> location services> system services> and turn off setting time zone. Battery drain while idle will stop. Also turn on status bar icon for location. GPS is the number 1 CPU hog as proven by many system resource tools. It’s worked for every iPhone owner I know and told.

    • I did this a few weeks ago on my 4s. Didn’t help at all

  • My 4s batery is like my iphone 4 since i did restore without reloading backup …. And itune was not showing me the 5.0.1(2) so i did downloa it and manually install it since then im getting like a 10%batery drop on 7 hours idle

  • IOS 5.x.x never get battery improved. Once apple update the IOS regardless any version the battery came worse. Im rely that IOS 4.3.x just 666mb size of firmware but iOS 5.x.x increased to 746mb size of firmware. Logically the size was increased and the battery came drain. Here already tell you that the battery will come worse and worse once you update. So keep in mine that, dont believe whatsoever reason from apple that they will resolve the battery issued unless they remove some file to reduced the size of firmware to 666mb.

    For betterway, please dont update any IOS version claimed from apple.

    • Taylor Harris

      That’s the most illogical bull shit that I’ve ever heard. The size of the firmware file is of course going to increase when new features and graphics are added, but that doesn’t mean those features or graphics are always being utilized. The cause of battery drain is essentially the use of hardware (Display backlight, running applications causing high CPU usage, Heavy browsing utilizing the 3G baseband…). The file size of firmware isn’t a factor of battery life by any means.

  • Anonymous

    Wow this is crazy. My 4s nv dropped 20% in standby mode for a night.

  • I am using an iPad 2 running 5.0.1, and I have found no change in battery life compared to iOS 4. Last night, I left my iPad on 100% (not charging), and I came back to it just now and found it at 99%.

    Also, there are a number of developers/hackers on Twitter who have said that 5.1 beta 3 has given a huge improvement in battery life, with one case claiming that their battery life changed from 5 hours to 13 hours.

  • Anonymous

    I had great battery life on iOS 5.0 with my iPhone 4S but when I updated to iOS 5.0.1 so I can Jailbreak my battery drains really fast now.

    • Exactly the same problem here just with my iPad 2. How is that even possible, Apple really needs to fix their stuff.

  • Anonymous

    The fact is, it’s the hardware. Why else would it be years with the same results. I read an article about a guy replacing all his idevuce battery boards & connectors, and it dramatically increased his battery life.

    Apple needs to change how the phone sucks juice from the battery, software updates can only help so much, but if it’s been this bad, for this long, a hardware problem sounds much more realistic. Tho Apple will never admit that. For fear of high high demands of free repairs or replacements.

    I think the only way to fix the. Artery drain of you iPhone is to rebuild it yourself, with better, yet equal parts.

    Or it’s something as simple as the factory workers slapping the devices together so quickly that the list important parts (battery board & connector) are often just too loose.

    But regardless of my speculations, I truly think nothing but a physical repair will fix the battery drain. And Apple is trying desperately to find an alternative, be aysrvthey know very well it’s a hardware problem, but like u said: they will never admit this for obvious reasons.

  • Anonymous

    The fact is, it’s the hardware. Why else would it be years with the same results. I read an article about a guy replacing all his idevuce battery boards & connectors, and it dramatically increased his battery life.

    Apple needs to change how the phone sucks juice from the battery, software updates can only help so much, but if it’s been this bad, for this long, a hardware problem sounds much more realistic. Tho Apple will never admit that. For fear of high high demands of free repairs or replacements.

    I think the only way to fix the. Artery drain of you iPhone is to rebuild it yourself, with better, yet equal parts.

    Or it’s something as simple as the factory workers slapping the devices together so quickly that the list important parts (battery board & connector) are often just too loose.

    But regardless of my speculations, I truly think nothing but a physical repair will fix the battery drain. And Apple is trying desperately to find an alternative, be aysrvthey know very well it’s a hardware problem, but like u said: they will never admit this for obvious reasons.

  • Ipod touch 4g here, if well its true that sometimes you get random battery drains, my device stills behaves almost as good as it was with ips 4.x. I think that we are using our devices every day more and more so we think the battery last less.

  • Anonymous

    hello,, i have a question,,
    when i want to upgrade my jailbroaken iphone4 to the latest unthethers jailbreak,, do i need to repurchase my purchased tweaks again?
    pls.. i need answer,,

    • No, you won’t have to repay for themes/tweaks you’ve already downloaded and paid for. After opening Cydia for the first time go into Manage Account and enter your login info. Everything you have bought since they added this feature will be listed after you log in. You can then re-download for free.

    • Taylor Harris

      Idiot… I answered your damn question in your first post!

  • The only issue that I have had with battery life (iPhone 4, factory unlocked) on 5.0.1 is when I play music. My battery drains like 20% every hour if not more. It also because extremely hot (with Edge & Wifi off)!

    I keep getting worried that my phone will be the next “IPHONE BURSTS INTO FLAMES!!!” article shown on iDB 🙁

  • On iPhone 4, updated from 4.3.3 to 5.0.1, havent noticed any battery drain issues. Even got Push notifications to work with SAM. Still got 30% at EOD.

    • There is no battery issue. All it is bloggers need to fill in an empty space with some news…

      • Anonymous

        Are you acting, or are you really a complete idiot?

      • I state facts you complete idiot.

      • There’s thousands of folk who’d disagree with you there. Including the dude who had two 4S’s, one with horrific battery drain one without and who restored each phone from the back up of the other, and the battery problem stayed with the image.

  • Anonymous

    I have a question – random – but maybe some of you smarter peeps can comment: Has any one of you with the drain issues actually had your phone die due to the battery draining? Or did you deliberately let it drain to zero? I’m just wondering if it’s at all a possibility that the battery indicator itself is the problem, and maybe not the battery? I only ask this because of something a friend said to me about their phone showing say, 83% now, and 20 mins later showing maybe 75%, then an hour later it shows 90%. Yes,…it really does that on their phone. Anyway, just a thought.

    • Yeah, my i4S may drain quickly, but tends to hang on 1% for some time.
      (tried recalibrating battery etc).

  • My battery life has sucked on my iPhone 4S since day one, really disappointing. Though I have iOS 5.0.1 on my iPad 2, and the battery is just as good as always. With a few hours use each day, I can easily go without a charge for probably close to 2 weeks.

  • Anonymous

    I’m not so convinced that iOS 5.0.1 is a bigger battery drainer than 4.3.3. I bought a phonesuit battery case back in 4.3.3 when I would go halfway through my battery by noon. I work in a hospital OR and we there are plenty of rooms where my phone spent the day searching for a damn AT&T signal. Nevertheless, my battery will be 20% if left unused all day or 20% by 1 pm with casual use or even 20% by 10 with heavy use. Either way the most reliable “fix” for me has been a battery case. Don’t give up your jailbreak for a supposed battery improvement from Apple.

  • That solved my Battery issue: I restored my Battery-draining-10%-per-hour-in-standby-iPhone 4s with the Data of the well running iPhone 4 of my wife. Then changed all settings by hand. Told my 4s to sync with my iTunes. It worked.

  • Anonymous

    thank god…

  • Anonymous

    Wireless mode will drain my iPhone 4 battery in a day. I don,t use it as a celphone. In Airplane mode it lasts a week or more. I keep it in Airplane mode as much as possible. I don,t have iCloud or Locations activated.
    Arthur

  • I had the same problem..massive battery drain after upgrade from 4.1 or soooo. Did a FULL restore and did a manu synch with everything off, location services only for app’s that I use and auto clock and now it’s 100% better. I was losing 1% every 90 sec..really disappointed but all good now.

  • Myself and others that I know that have iPhone 4/4S haven’t had any problems with battery drainage, we have experienced calls going to VM and text that are not received wile wifi is on.
    I hope apple knows about this bug and fixes it. I started having this issue since the iOS 5 upgrade

    a bit off topic i know.

  • I noticed a battery problem 6-8 ago, with 4.3. I did a lot of trial and error, and I came to the conclusion that it had to do with something in Notifications. What I did to get it fixed, was turn Notifications off in all apps, and then turned them back on app by app, only in the apps that I deemed necessary. I think that there is/are some rogue app(s) that aren’t playing nicely in the background with notifications.

    Ever since I did that, and now only have my essential notifications on, I have enjoyed the battery life that I had, prior to 4.3. I am now upgraded to iOS 5 and have never experienced the battery draining issues that you (and others) describe.

  • I noticed a battery problem 6-8 ago, with 4.3. I did a lot of trial and error, and I came to the conclusion that it had to do with something in Notifications. What I did to get it fixed, was turn Notifications off in all apps, and then turned them back on app by app, only in the apps that I deemed necessary. I think that there is/are some rogue app(s) that aren’t playing nicely in the background with notifications.

    Ever since I did that, and now only have my essential notifications on, I have enjoyed the battery life that I had, prior to 4.3. I am now upgraded to iOS 5 and have never experienced the battery draining issues that you (and others) describe.

  • I noticed a battery problem 6-8 ago, with 4.3. I did a lot of trial and error, and I came to the conclusion that it had to do with something in Notifications. What I did to get it fixed, was turn Notifications off in all apps, and then turned them back on app by app, only in the apps that I deemed necessary. I think that there is/are some rogue app(s) that aren’t playing nicely in the background with notifications.

    Ever since I did that, and now only have my essential notifications on, I have enjoyed the battery life that I had, prior to 4.3. I am now upgraded to iOS 5 and have never experienced the battery draining issues that you (and others) describe.

  • I noticed a battery problem 6-8 ago, with 4.3. I did a lot of trial and error, and I came to the conclusion that it had to do with something in Notifications. What I did to get it fixed, was turn Notifications off in all apps, and then turned them back on app by app, only in the apps that I deemed necessary. I think that there is/are some rogue app(s) that aren’t playing nicely in the background with notifications.

    Ever since I did that, and now only have my essential notifications on, I have enjoyed the battery life that I had, prior to 4.3. I am now upgraded to iOS 5 and have never experienced the battery draining issues that you (and others) describe.

  • I noticed a battery problem 6-8 ago, with 4.3. I did a lot of trial and error, and I came to the conclusion that it had to do with something in Notifications. What I did to get it fixed, was turn Notifications off in all apps, and then turned them back on app by app, only in the apps that I deemed necessary. I think that there is/are some rogue app(s) that aren’t playing nicely in the background with notifications.

    Ever since I did that, and now only have my essential notifications on, I have enjoyed the battery life that I had, prior to 4.3. I am now upgraded to iOS 5 and have never experienced the battery draining issues that you (and others) describe.

  • I noticed a battery problem 6-8 ago, with 4.3. I did a lot of trial and error, and I came to the conclusion that it had to do with something in Notifications. What I did to get it fixed, was turn Notifications off in all apps, and then turned them back on app by app, only in the apps that I deemed necessary. I think that there is/are some rogue app(s) that aren’t playing nicely in the background with notifications.

    Ever since I did that, and now only have my essential notifications on, I have enjoyed the battery life that I had, prior to 4.3. I am now upgraded to iOS 5 and have never experienced the battery draining issues that you (and others) describe.

  • I noticed a battery problem 6-8 ago, with 4.3. I did a lot of trial and error, and I came to the conclusion that it had to do with something in Notifications. What I did to get it fixed, was turn Notifications off in all apps, and then turned them back on app by app, only in the apps that I deemed necessary. I think that there is/are some rogue app(s) that aren’t playing nicely in the background with notifications.

    Ever since I did that, and now only have my essential notifications on, I have enjoyed the battery life that I had, prior to 4.3. I am now upgraded to iOS 5 and have never experienced the battery draining issues that you (and others) describe.

  • There is a code in the 4S that goes like this:

    If CPU0.idle = 1
    {
    CPU1.waste.battery = 1
    }
    Else
    {
    CPU0.waste.battery = 1
    }
    end

    >.<

    They wont be able to fix it since it's a hardware problem.. just like the antenna issue on the iPhone4.

  • My 4s is on 5.0.1…

    Left it with a full charge to idle with Cellular Data turned off and WiFi turned ON:
    After 8 hours the battery had 39% charge left.
    The battery was exhausted a little after 14 hours.

    Left the same 4s with a full charge to idle with Cellular Data turned off and WiFi turned OFF:
    After 8 hours the battery had 97% charge left.
    After 24 hours the battery had 85% charge left.
    After 48 hours the battery had 77% charge left.
    After 36 hours the battery had 67% charge left.

    I’m going to try the same thing with Cellular Data turned on each time but I’m thinking that WiFi is the culprit (on my phone anyway)…

  • just turn on flight profile and the battery life will increase dramatically. i do that on my 4s and it goes of 24 hours later lol. it can last longer if you are not using it all the time

    • You get 24 hours in flightmode? Not exactly useful.
      And still a very, very long way short of the claimed couple of hundred hours you should get if you have it in the standby mode instead!

  • Anonymous

    I turned off that Siri ear thing and everything else I don’t use… left wi-fi on and charged it to 100%. 3 hours later I checked and i was at 100%. I’m convinced it’s mostly Siri.

  • i like this…..thanks lol…….