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Scarface.

Q: iPhone 4s Battery Life?

My iPhone 4s battery seems terrible! Almost equivalent to my 3GS and it's terrible battery life. When I got my iPhone yesterday and restored from backup I noticed nothing really changed with minimal usage and standby! Is this normal or should I consider setting it up as a new phone because maybe something is running in the background that's causing it to drop a percentage every few minutes under light usage? Input would be great!

Posted on Oct 15, 2011 7:14 AM

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Q: iPhone 4s Battery Life?

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  • by markfrombuck,

    markfrombuck markfrombuck Nov 2, 2011 12:55 AM in response to Lill-Veronica
    Level 1 (0 points)
    Nov 2, 2011 12:55 AM in response to Lill-Veronica

    Seems to me like it is mail related , i turned off all mail , calendars and contacts and the battery drain stopped.

     

    I then re-enabled them and everything seems fine ( I am using Exchange and Gmail).

     

    I was encountering a bug where there was a jittery cal event in the drop down notifications screen this also seems to be cured by the switching off and back on of mail.

     

    I wonder if it something to do with Exchange sync ....

  • by JimItaly,

    JimItaly JimItaly Nov 2, 2011 12:58 AM in response to Scarface.
    Level 1 (0 points)
    Nov 2, 2011 12:58 AM in response to Scarface.

    Just to add my voice:

     

    Battery life awful on my 4s 64Gb... Are we really sure it's not to do with the inability to turn off 3G? That function on my 4 allowed me to almost double the battery life. I have my old 4 (destined for my girlfriend) in for repair but as soon as it comes back I'm sending this thing to Apple.

  • by Dgo1975,

    Dgo1975 Dgo1975 Nov 2, 2011 1:02 AM in response to Scarface.
    Level 1 (0 points)
    Nov 2, 2011 1:02 AM in response to Scarface.

    I have mine since friday. Since that day I charged it every day at least once.

    Called Apple support on monday (in Belgium). They told they haven't heard of the issues, as they don't yet ship the iphone 4s??? Ok, the apple shop maybe doesn't ship the iphone, but at least they should be there to provide help. They asked me to go the shop where I bought it to get a repair. As I told him again that I'm not the only person in the world having this issue, I doubt that everyone will bring back his iphone for a software issue. He couldn't help me anyway.

    So calling to the shop (mobistar) , they told me they heard of the issue and we have to wait. Returning the iphone was not an option. So I asked him if my battery is dead after 1y if who will take care of the warranty/replacement? Answer : I have no idea.

     

    I'm a iphone 3G user and was very happy with it, even of the battery was completely empty every day, but at least I used it the entire day. Now the 4s is just on, ok with BT, wifi and exchange mail configured and not really using anything else, I have to be lucky to pass by the day. Charged yesterday evening 9PM, now 9 AM I'm on 49%

     

    I already reset all settings and restored from icloud as proposed, disabled all notification (except mail & sms), disabled all location services.

    Please Apple come quickly with a solution.

  • by Lill-Veronica,

    Lill-Veronica Lill-Veronica Nov 2, 2011 1:06 AM in response to JimItaly
    Level 1 (0 points)
    Nov 2, 2011 1:06 AM in response to JimItaly

    JimItaly, if you go to Settings > General > Network, and then turn Cellular Data off, that turns 3G off on my phone...

  • by JimItaly,

    JimItaly JimItaly Nov 2, 2011 1:10 AM in response to Lill-Veronica
    Level 1 (0 points)
    Nov 2, 2011 1:10 AM in response to Lill-Veronica

    Thanks Lill... but that's actually a step too far... I liked the option of leaving 2G data on. Plus, for whatever reason, turning off 3G on my 4 led to an immediate increase in signal stregnth and reception... turning of all cel data on my 4s does not.

     

    Hmmmm....

  • by Memiehic,

    Memiehic Memiehic Nov 2, 2011 1:10 AM in response to Scarface.
    Level 1 (29 points)
    Nov 2, 2011 1:10 AM in response to Scarface.

    The best i got of the battery is 6 hours and 40 minutes of usage 3g web browsing / iBooks and Music a majority of the time.

     

    what i have turned off:

     

    Siri "raise to speak", automatic time, location services off, wifi off, iCloud off, Photo stream off, Notifications only has Phone & Messages enabled, newsstand (not launched)

     

    One day newsstand was launched accdiently before i go to bead it drained 23% over night (8.5hours).

     

    Right now i had 65% from 100% charge this morning... it tells me that i used 5 hours and 24 minutes (Music / iBooks 80 minute journey on train both ways doing 3G web browsing about 10-20 minutes the rest is iBooks.. and the other usage is Music... I have Auto brightness on as well.)

     

    I have already went through 4 deplete to 0 & 1% cycles then charge to full so it kinda helps.. it also helps when i turn off all those functions....

  • by Lill-Veronica,

    Lill-Veronica Lill-Veronica Nov 2, 2011 1:14 AM in response to Memiehic
    Level 1 (0 points)
    Nov 2, 2011 1:14 AM in response to Memiehic

    JimItaly, I agree!

  • by 1AppleADayNoWay,

    1AppleADayNoWay 1AppleADayNoWay Nov 2, 2011 1:36 AM in response to Scarface.
    Level 1 (0 points)
    Nov 2, 2011 1:36 AM in response to Scarface.

    Their 3 options snookiefromtheblock was hinted at simply point to the possibility that malformed data might elevate "3G stress" or trigger some process to loop which in turn might accentuate battery degradation. Support seem to think that malformed data occurs in order of importance first from mail triggers, then from lack of integrity of the restore and finally from all the settings and apps. I find it quite interesting. And indeed Mark came up to such a conclusion with entirely resetting the device and going through a few full charge/discharge cycles.

     

    Also so interesting are those deductions that Miless came to from that Anandtech piece on the 4S and his review of this thread when he said:

     

    "1. Those on Verizon and Sprint seem to be able to get better battery life than those on AT&T. I am not the other side of the planet, and am using similar GSM 3G network as AT&T as oppose to Verizon and Sprint's CDMA network. And i definitely cannot get 24 hours standby with 4 hours usage and still 60-70% left on the battery like some CDMA network users could.

     

    2. iPhone 4S is a quadband worldphone with the antenna design similar to CDMA Verizon phone but with a microSIM slot. Could it be that Apple optimize the firmware for the CDMA chip and add on GSM 3G as an after thought? Therefore, leaving the battery drain more pronounced on GSM 3G phones than CDMA ones? Or could it be that Qualcomm MDM 6610 chip drains more power for GSM/UMTS users?

     

    A quick read on Anadtech's iPhone 4S review revealed that ...

    http://www.anandtech.com/show/4971/apple-iphone-4s-review-att-verizon/3

     

    So i guess those on GSM/UMTS, though enjoying higher speed of 14.4mbps from HSDPA ... also suffer from higher battery drain."

     

    I think it's of value to quote a segment of the article on Anandtech:

     

    "It’s likely that this is absent to accommodate the multi-mode nature of the 4S (and thus the lowest common denominator CDMA mode), however the absence of this toggle makes getting connected in congested areas more difficult. In some markets, (I’m looking at you, AT&T in Las Vegas), EDGE is often the only way to get any connectivity, even without a major convention going on. Not having that 3G toggle makes manually selecting that less-used but more reliable connection impossible now, to say nothing of the potential battery savings that this would afford (and that we sadly can’t test now)."

     

    Oh but this is so telling. And because Miless and Mark Posner share the same carrier and both those guys are quite thorough in their testing, this is somewhat confirmed i.e. drainage will vary per carrier/technology. One can even speculate it can further vary according to geography, traffic and equipment even within a carrier's 3G implementation.

     

    Finally, quite a few users today have at last integrated the likelihood that in some instances the battery indicator might not be entirely revealing - and after all that's just a piece of software inside a bigger piece of software that's having issues so why presume that it's entirely reliable? I've also seen users acknowledging the fact that they need to bring the device to a full shutoff before charging and put aside extrapolations and preemptive charging.

     

    I don't want to say "I told you so" and I said I'd shut the eff up once and for all lolll but so much of this is pointing towards this "3G stress" idea I came up with in my prior "last" post, although I'll concede it doesn't take a genius to come up with such an idea. Puns are not intended. Which is why it was so important to profile the issues by carrier/operator right from the start. Unfortunately you will NEVER hear Apple discuss this I'm sure because at the heart of their 3G is the Qualcomm chip... and what's inside that chip is at the heart of an intense feud between Samsung and Apple i.e. Qualcomm is embedding some knowhow of Samsung in there, and Apple is integrating that chip to their handset "without infringing those patents". So maybe their integration of that silicon is "unconventional". I speculate that's also the reason why you can't really deactivate 3G on the Iphone4s. But I say why should the user take the "heat" of such wars. The consumer should have been informed that the 3G speed would be faster and that battery performance would be better with a certain type of operator. So they would have chosen accordingly. It's Apple who should be taking the "heat" from the operators who would be put at a disadvantage by such an implementation. After all Apple is basically the richest company in the world so they shouldn't be greedy and their device is expensive as it is. If this had been known, then all users would have chosen the same carrier where available and this in turn would have yielded better battery performance for the user base on average. I believe taking the heat from operators was a good trade-off vs. making the users feel as if they're kept in the dark i.e alienating some of them.

     

    It's a real shame that Apple didn't leverage its user base for support. After reading so many posts here, and sure I'll concede the thread is no great support tool, but it really strikes you that aside from Mark and Miless and a very few others, you can't say that the user base is very capable of deductive/inductive reasoning or that they're quite literate in terms of computing. Complaining is only fair and what else can they do? I don't mean that in a condescending way. But what they lack at that level they make up for in terms of devotion and desire to help solve the issue. With proper guidance and assigned tasks - think mechanical turk here - and provided the collaborative tools would have been implemented in the first place - think Google Wave here... what are the collaborative tools Apple offer after all? - Apple could have populated an entire database in real time and see the evolution as sophistication in the tinkering progresses, which in turn they could use internally. One may say that usage statistics do that but a user who thinks by himself, who has a task assigned and a goal, grouped with others, with testing protocols, interacting, can achieve so much more. Some of those people think that some "engineers" contacted them. I mean, if they had ever met an engineer in their life (and I don't mean someone with a few certs, I mean Berkely Ph.D.s and such), they would know they don't talk to end users ever because nobody can understand these guys anyways and they cost way too much for them to make house calls. But if legal prohibited Apple from doing anything that would position them in relation to merchantability, or operator claims or Qualcomm related patent disputes, then they should, in my opinion, have created a little "rogue task force" of "superpowerusers" tackling some tasks in their forums, appearing just like that early on, "by coincidence" to create cohesion and foster support based research. To me Mark is the one who from what I read corresponds the most to that sort of contributor. In my experience, solutions that escape even the most specialized of professionals can be elaborated at the user support level. Because when you pay 800$ for some device you will go at great lengths to make it work. Because first line support can really take the side of the customer and come up with great solutions, even if it's for a short while before a global solution is put together. In any case Apple missed a great opportunity to come clear and open, show that they can operate a shift in corporate vision in relation to their past authoritative "there is no problem" support paradigm, while elevating the thinking of their user base. Bundling Gbrainy with their device comes as a distant second choice. But it's all behind closed doors and one morning you guys will all wake up with 5.0.1 and all of this will be laid to waste. It was time to really "think different". Even as of yesterday some users were reporting support telling them they were not aware of any issues and such. I mean come on. There are so many Apple users worldwide and I'm pretty sure they can contribute. Apple has so much to learn I believe in this respect. It's more than tech.

     

    Apple also needs input from people like me who don't actually like them much at all, but who have some sympathy for users, respect for tech in general and who are "no ********, no compromise, not about brand" people. It's about respect, vindicating the user base, and putting legal in its rightful place (a small place where they litigate when needed to protect and enforce the core IP and not to enforce the "destroy Android" legacy - because he did say until the end and we're past that). So in order to be proactive for what other Igate issue might come next, I'd contemplate offering my services. I think 100 grand and some office in San Francisco with some living accommodations might be a good start...

     

    I'll even consider using an Iphone, provided it's supplied to me as a perk on some data plan with a CDMA carrier lolllll.

     

    You guys know how to contact me.

     

    Thank you and good luck!

  • by Davey1977,

    Davey1977 Davey1977 Nov 2, 2011 2:04 AM in response to Scarface.
    Level 1 (0 points)
    Nov 2, 2011 2:04 AM in response to Scarface.

    In some ways this is worse but in some ways better.  Having charged my new phone yesterday morning with it on 2% and unplugging it during the afternoon I turned off location services.

     

    Last night before bed it was down to 25% so I turned off WIFI and then woke to it at 11%.  At that point I was all set to take it into an apple store only to discover that I'm not the only one with the issue.

     

    Hope that there's both a fix and we haven't all damaged our batteries from all the repeated charging

  • by elvis717,

    elvis717 elvis717 Nov 2, 2011 2:05 AM in response to Scarface.
    Level 1 (0 points)
    Nov 2, 2011 2:05 AM in response to Scarface.

    Also having issues with the battery on the 4s. I noticed a small drop in battery life on the iPhone 4 when iOS 5 came, but the 4s is substantial. Have tried all recommended fixes: resetting network connections, shutting off fetch email, turning of calendar locations services, etc. Even tried a full restore last night. The result of which made the battery life slightly better, but it still declines quickly.

     

    I have a theory though about what is causing it. I suspect that there might be two bugs at work. One in iOS5 that is causing a drain on all devices using it. I think that one is tied to the calendar and diagnostics issue that many have written about. I believe that the second bug, particular to the 4s is the double antenna array and its switching. My experience 4s is that it loses battery time dramatically when on 3G, which is not a common occurance in Sweden since there is such good coverage, particularly in Stockholm where I live. It seems that the bug is connected to how often the phone is switching or cycling between the two antennas. If the cycle rate is too high, that would account for large amounts of processor power draining the battery. Perhaps there is something in the two antenna and iOS5 code that is causing the cycling to be hyper.

     

    I wish I had good data to back this up and supply to the Apple community, but I don't. All I have is an unsupported and untested hypothesis. If anyone using the 4s could check the cycling and how much power it draws it would be interesting to know.

  • by dkk-berlin,

    dkk-berlin dkk-berlin Nov 2, 2011 2:10 AM in response to Scarface.
    Level 1 (0 points)
    Nov 2, 2011 2:10 AM in response to Scarface.

    I had the same problem with the battery life. Even with all kind of options disabled (location services, bluetooth, Siri) and in standby (turning the smartphone into a very expensive clock), I lost 3% each hour and had to charge the phone every day. When I was using the phone (e.g. Safari on WiFi), the battery would be empty after 2 - 3 hours. I tried all tips and tricks mentioned in this thread (time zone, calendar noticifcations and more), but that didn't  help. I also resetted my settings, then deleted all data and set up the phone from the scratch. No improvement!

     

    Then I called the support and they sent me a new 4S. I restored the backup from the other 4S, using the very same settings! The battery life is normal now, I can use the phone without problems. I'm pretty sure that my first 4S had a bad battery or some other hardware problem.

     

    However, there might be a mix of issues at work here: Software bugs (time zone & calendar notifications) and broken batteries in a couple of cases.

  • by ycooreman,

    ycooreman ycooreman Nov 2, 2011 2:16 AM in response to Scarface.
    Level 1 (4 points)
    Mac OS X
    Nov 2, 2011 2:16 AM in response to Scarface.

    I do understand that most people will not have the time or will not bother to ready through all the advice given in this thread. But I want to repeat my experience and I hope it will help some people.

     

    To add to the comments below: I did my second trickle charge yesterday evening. Went to bed (battery 100%) woke up in the morning with the battery still showing 100%

     

    -------------------------------

     

    Ok, my 4S is now working completely as expected.

    I'm not sure which step did it in the end, so I'll just repeat my experience.

     

    FIRST ATTEMPT:

     

    I did the 'recovery mode' restore first. After which I started from scratch and disabled the often mentioned notifications and location services that seem to cause trouble.

     

    After that I did a full discharge and charge of the phone.

     

    That made a huge difference. The phone still discharged too quickly but it was A LOT better than before, especially when actually using it (as opposed to it being on standby during the night)

     

    SECOND ATTEMPT:

     

    And this is where the magic probably happened.

     

    I did a 'restore settings' (which doesn't wipe the phone), disabled the usual notifications and location services again.

     

    I then used 'Battery Doctor Pro' to do a charge with trickle charge.

     

    Went to bed, phone 100%.

    Woke up, phone 98%

     

    4hrs later with moderate use (email, texting) but lot's of driving (so network searching)

    Phone 93%

     

    Latest update: see begnning of this post

  • by gene85,

    gene85 gene85 Nov 2, 2011 2:33 AM in response to Scarface.
    Level 1 (4 points)
    iPhone
    Nov 2, 2011 2:33 AM in response to Scarface.

    I have been having problems with the battery since the day the phone came out!  I've read these posts and tried several different recommendations.  Some of them seemed to help but still had excessive battery drain.  Until I restored the phone the battery never had a full charge on it when I would remove it from the charger.  It would always be 98 or 99%.  Restoring the phone took care of that issue but still had excessive battery drain.  In one hour is looses 12% which seems to always be constant.

     

    Yesterday I went to the apple store to have the phone checked.  It was not a very friendly experience.  The tech told me there was nothing wrong with the phone.  He said it was software related. Showed me the phone had 4 hours and 12 minutes of usage since last charge and something in the software was causing location services to crash constantly.  He recommendation was to do a restore on the phone. As he put it "it has to be a third party software causing the problem"  he told me they have no way of knowing what program could be causing the problem. I had only used the phone for about 45 minutes since completing the charge.  I argued with him for a couple of minutes and then left the store.

     

    I then decided since the phone was so new I would go the the AT&T store.  That is when I found someone willing to help.  I explained what just took place at the Apple store and he had some kind words about the battery problems and referred to numerous postings on the internet.  He then looked at my phone and made some recommendations for the settings. 

     

    Here is the big think he found on my phone.  Ever since getting it I have been playing with various new things on the phone, i.e. Siri, Reminders.  It turns out right after I got the phone I made a reminder for when I get home so every time I would get home the phone would give me the reminder. This reminder uses location services.  That was the problem with my phone.  Location services for reminders was always searching for its location.  The AT&T rep turned of location services for reminders.  He said he thinks that was going to clear up my battery problem.  I believe it did.  Since leaving the store the battery has not been draining excessively.  It has been 8 hours and I have only used about 12% of the battery.  I'm not sure if this is the cure for you guys but it seems to have taken care of my issue.

  • by revoir,

    revoir revoir Nov 2, 2011 3:03 AM in response to gene85
    Level 1 (90 points)
    Nov 2, 2011 3:03 AM in response to gene85

    I managed to increase the batterie's performance, without disabling bluetooth, push and wifi. Still not perfect, as i had to deactivate siri, but well. i described the whole process in this thread:

    https://discussions.apple.com/thread/3457211?tstart=0

     

    ... hope it helps some of you!

  • by sKzS,

    sKzS sKzS Nov 2, 2011 3:17 AM in response to 1AppleADayNoWay
    Level 1 (0 points)
    Nov 2, 2011 3:17 AM in response to 1AppleADayNoWay

    "Apple also needs input from people like me who don't actually like them much at all, but who have some sympathy for users, respect for tech in general and who are "no ********, no compromise, not about brand" people"

     

    don't get me wrong but, hopefully, without steve jobs around, they will start to listen people's input now.

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