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Source of Apple iPhone 4S battery drain may have been found

Posted: , by Alan F.

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Source of Apple iPhone 4S battery drain may have been found
Just yesterday we reported that Apple was crowd-sourcing ideas to fix a problem on the Apple iPhone 4S that seems to be draining the smartphone's battery. An answer for the problem might already have been discovered as Oliver Haslam of iDownloadBlog told U.K. newspaper The Guardian that a bug in iOS 5 could be responsible for the problems iPhone users have had with battery life on their phones.

According to Haslam, a feature on iOS 5 that keeps the local time on the Apple iPhone 4S correct-even when the user might have switched time zones-is apparently responsible for the battery drain on the handset. The good news is that the "Setting Time Zone" function can be disabled which would allow the battery to power the phone for the expected length of time. The price to pay seems rather small as Apple iPhone 4S users would only have to remember to manually change the time on their phone when traveling to a different time zone.

Disabling this feature might extend the battery life of your Apple iPhone 4S

Disabling this feature might extend the battery life of your Apple iPhone 4S

Haslam stated that after testing this theory and disabling the feature, battery life improved on iOS 5 powered versions of the Apple iPhone 4S, the Apple iPhone 4 and the Apple iPhone 3GS. He blamed the problem on a bug in the software that caused the location tracking circuitry to constantly check with cell phone towers to determine the location of the phone. The program uses the signal from cell phone towers and triangulation to get a fix on a current location. The feature is supposed to check in only occasionally with the towers to find where the handset is located.

Some Apple iPhone users who have disabled the "Setting Time Zone" feature have been unable to notice much difference in battery life, but it is such a simple thing to disable a function that probably not too many iPhone users care about. You can find "Setting Time Zone" under Settings/Location Services/System Services. Apple has not yet commented on the bug.

Apple's own testing has allowed the company to claim that the newest version of Apple's smartphone has one more hour of 3G talk time than what is expected from an Apple iPhone 4. A test done by CNET using a Sprint branded Apple iPhone 4S resulted in 9.2 hours of talk time over the carrier's Ev-Do Rev. A 3G pipeline. The battery in the Apple iPhone 4S has an extra .05WHrs of power as compared to the cell on the prior version of the phone, according to a tear down of the device by iFixit.

source: iDownloadBlog, TheGuardian via  CNET

63 Comments
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posted on 29 Oct 2011, 20:13 9

1. networkdood (Posts: 6310; Member since: 31 Mar 2010)


Cool, I will let my friends know that they do not have to jump off that bridge...good info!

posted on 29 Oct 2011, 20:18 5

2. irvinkeith (Posts: 55; Member since: 27 Jan 2010)


I'll try this and c if it works

posted on 29 Oct 2011, 20:39 5

3. akhi216 (Posts: 61; Member since: 01 May 2011)


Whatever. Imma call bs on these findings. Welcome to the wonderful world of widgets and notifications all you iPhone fanatics. Make sure to keep your chargers handy!

posted on 29 Oct 2011, 20:46 14

4. The_Miz (Posts: 1496; Member since: 06 Apr 2011)


Right, because Android phone batteries last soo much longer.

posted on 29 Oct 2011, 21:25 9

6. andulas (Posts: 3; Member since: 12 Dec 2010)


the galaxy note battery life is actually quite phenomenal.

posted on 29 Oct 2011, 21:30 6

8. networkdood (Posts: 6310; Member since: 31 Mar 2010)


like I say....12 hrs to 36 hrs depending on usage.....

posted on 30 Oct 2011, 03:11 3

27. Phullofphil (Posts: 801; Member since: 10 Feb 2009)


I have had bot phones for a long time. My I phone 4 has it's share of problems also. My iPad 2 has it's problems. The fact is it is what you do to either that makes the biggest deal on battery drain. I have had both my iPad with the a5 and my iPhone 4 be really choppy in spots like typing right now on my iPad 2 it is always about two taps behind me and in certain situations very iratic and slow. It all depends what I do to it. With android there is less control so it's easier to do but when I first got my bionic if I managed it right and turned off LTE when I did not need it my battery lasted me a long time. As long as any top android. When I started getting a lot of apps that did cool things or modded my phone well you really got to watch what you download and operate. They both have similar hardware and when in stock out of the box have about the same battery life. Moto phones usually have better. Htc the worst cause of sence. Apple is usually better that when you turn screen off it is better at keeping pretty much the same level in battery, unless you altered it with downloads or something to alter how it does it's stuff when in sleep. I wish android was more regulated on that part. If I down load or alter my android cause I really can't help it it is fun to mess with, it is not really sleeping. If your apps are updating every fifteen minutes or more your wasting your battery. Get mor control of app personalities. Both iOS and android have problems when you down too many apps and give apps less control. But most of it is how many are set up to be running at all times. Task killer does not work because those apps will just start back up and use more power than before. People need to be educated about the results and conciquinces of what apps they are downloaded and or what setting they have set up in there settings. There is other reasons but you can google that your self but I believe this to be the main reason. If you are using your phone or especially if you pick your phone up and it's not charging and it's warm or hot than you are having programs or services running in the back round. The heat is electricity leak. Just like the difference between an older light bulb and a florescent bulb. The hard ware for apple and android phones use the same hardware tech. It's not really the operating system. Well unless you alter the settings or there is a bug. Or like if I am in an area that has spotty LTE and my phone is searching for LTE batter leaks fast. That what the problem is in a nut shell. It's all about what you do or download to your phone. I know I found out I could have a bionic with great battery if I manage it right. While still having my bionic used to it's potential. There is better ways than just saying iOS is better than android. There are plenty of forums on this issue. A task manager that limited apps and recources to a certain amount of current unless plugged in controlled by the OS would be a good start. Manually sync apps

posted on 30 Oct 2011, 03:29 1

28. Phullofphil (Posts: 801; Member since: 10 Feb 2009)


That's another good reason getting into rooting and jail breaking should be takin very seriously and you need to really educate yourself or have an older phone you can mess with before jumping to that. You can really hurt or make your device very Inaficiant or even bricked. Bit at the same time really take advantage of very talented developers and have your phone at top speed best performances and still have longer battery life. I am not just talking about downloaded pirated apps either. Yeah my ipadd2 iPhone 4 will be eventually jailbreak. iPhone is on iOS 5.0. And I am assuming with the ini mat update no jailbreak gona come out yet until it gets update. Would be kinda stupid jailbreak untethered and reveal vulnerabilities to soon to get patched. And my android phones rooted. I d that for bettererformance. That's it. I still buy mynapps and support the developers. Any way 99% of the time like imsead above it's your own fault for battery drain.

posted on 30 Oct 2011, 19:25

54. squallz506 (banned) (Posts: 1075; Member since: 19 Oct 2011)


you forgot santa's hat

o

posted on 30 Oct 2011, 21:45

56. JeffdaBeat (unregistered)


Paragraphs...

posted on 30 Oct 2011, 22:42 1

57. XiphiasGladius (Posts: 804; Member since: 21 Aug 2011)


Nice one (rant), HTC's battery life sucks due to that heavy skinned UI, unlike other android manufacturers UI's which is more simple the battery life would last longer. and since apples UI is very simple and intuitive the life would obviously last way longer than any android out there. . .

posted on 29 Oct 2011, 21:16 3

5. DROIDX0430 (Posts: 410; Member since: 24 Nov 2010)


What a medicore excuse...wait till lte gets on the next iphone in another year and a half

posted on 29 Oct 2011, 21:25 1

7. redmd (Posts: 901; Member since: 26 Oct 2011)


i think "Setting Time Zone" is not the only bug because i haven't been traveling yet my battery drains faster. but i hope there's a bit of improvement.

posted on 29 Oct 2011, 21:31 1

9. networkdood (Posts: 6310; Member since: 31 Mar 2010)


It has nothing to do with traveling...the setting being on, unto itself, has, reportedly, been the issue....turn it off, and who knows.....at least with Android, you get a breakdown of what is being used and you can more easier identify the issue.

posted on 30 Oct 2011, 02:19 3

23. The_Miz (Posts: 1496; Member since: 06 Apr 2011)


Not all the time. Sometimes you'll have rogue bloatware or apps running in the background.

posted on 29 Oct 2011, 21:50 2

10. richk (Posts: 32; Member since: 23 Jun 2010)


Good article while i was on system services i also turned off traffic, location based i-ads and diagnostics and usage, which should save me some battery on my iphone 4 :) DONT EVEN KNOW WHY APPLE PUT THEM THERE ANYWAY why does i-ads need to know where i am and diagnostics?

posted on 29 Oct 2011, 22:13 1

11. earle.evans (Posts: 27; Member since: 07 Mar 2010)


i-ads location is for targeting. so when you see an ad it is actually relevant, not just a national ad.

posted on 29 Oct 2011, 23:16 1

13. richk (Posts: 32; Member since: 23 Jun 2010)


my point being it drains my battery using gps to to send me ads so ive turned it off :)

posted on 29 Oct 2011, 22:55 4

12. ivanko34 (Posts: 617; Member since: 04 Sep 2011)


LOL
always something is wrong with apple
they just know marketing and put high prices for their poorly designed not tested products

posted on 29 Oct 2011, 23:26 4

14. zuno gyakusatsu (Posts: 257; Member since: 16 Mar 2010)


your thinking of motorola, and samsung. simple typo. you can thank me for the correction some other time.

posted on 30 Oct 2011, 01:34 5

20. Sniggly (Posts: 7177; Member since: 05 Dec 2009)


Once again Zuni has nothing of value to say.

posted on 30 Oct 2011, 02:22 4

25. The_Miz (Posts: 1496; Member since: 06 Apr 2011)


Calm down, Sniggly. We all have an opinion here.

posted on 30 Oct 2011, 04:15 1

31. Sniggly (Posts: 7177; Member since: 05 Dec 2009)


He's entitled to his opinion, but all Zuno EVER says is "Android sucks, *insert Android manufacture here* sucks." Then he's gone again. He never qualifies his statements, never offers a reason why he feels the way he does. He just repeats the same bulls**t a priori statement every time he posts, albeit with different wording sometimes.

posted on 31 Oct 2011, 11:32

60. gallitoking (Posts: 4690; Member since: 17 May 2011)


this is a forum.. you dont need to explain nothing..... if that is what he chooses... I rather him not give explanation than give your opinion disguise as facts..like you Sniggly

posted on 30 Oct 2011, 02:21 3

24. The_Miz (Posts: 1496; Member since: 06 Apr 2011)


This has got to be the stupidest thing I've read. Look, we get it. You hate Apple. But to call their products poorly designed is stupidly ridiculous. Not saying all phones are like that, but I can think of a lot of Android phones that don't even come close to the build quality of an iPhone.

And while you're there pissing on Apple, just remember the fiasco Samsung has been in regarding their phones have signal issues and such.

posted on 30 Oct 2011, 09:06

36. Leodrade (Posts: 87; Member since: 26 Aug 2011)


i agree with you in some parts but talking about signal issues with Samsung when the iPhone 4S anntena is infringing Samsung patents is not a smart move

posted on 29 Oct 2011, 23:28

15. bigboss (Posts: 74; Member since: 26 Oct 2011)


You see it in their logo itself. The apple is already eaten and so is not edible for you.

posted on 29 Oct 2011, 23:28

16. bigboss (Posts: 74; Member since: 26 Oct 2011)


You see it in their logo itself. The apple is already eaten and so is not edible for you.

posted on 29 Oct 2011, 23:50

17. Johnny_Mnemonic (Posts: 240; Member since: 05 Oct 2011)


I think that's not going to fix the problem ,

posted on 29 Oct 2011, 23:51 4

18. Johnny_Mnemonic (Posts: 240; Member since: 05 Oct 2011)


I think that's not going to fix the problem , should get a real smartphone ( droid ) stop buying kids toys like iPhone

posted on 30 Oct 2011, 00:16 2

19. richk (Posts: 32; Member since: 23 Jun 2010)


hmmmm join andriod to get hacked by chineese government and their free apps lol

posted on 30 Oct 2011, 01:41 2

21. Sniggly (Posts: 7177; Member since: 05 Dec 2009)


Well, if that fixes the issue, fantastic. However, why is it that when you write this article about this issue is all "this is SO not a big deal, and it's such an EASY fix, nothing to worry about."

However, when we have some bug with an Android phone, we have articles all saying "DOOM AND DESPAIR BE UPON THEE, MORTALS, FOR THERE ART A BUG IN THE SYSTEM! THOUEST SHALL ALL DIE HORRIBLY! SAY YOUR PRAYERS AND MAY GOD HAVE MERCY ON YOUR SOUL!!!"

posted on 30 Oct 2011, 01:50 4

22. ca2l3vin (Posts: 22; Member since: 12 Aug 2009)


God you fandroids and iSh*ep irritate the hell outta me. Sometimes I wonder Why do I bother even reading these comments. I work in the phone industry and can tell you that EVERY PHONE HAS SOME SORT OF PROBLEM!!!! sometimes its a simple fix. Sometimes its a slightly bigger issue but the only things us consumers should do is report it to the maker of our phones then expect them to fix it.

Just irritating seeing people looking for iPhone articles to first say how bias phonearena is then the fandroids bash the iphone and the iSh*ep defend with whats wrong with android blah blah blah....its a PHONE. Buy what you want and talk about why you like or dislike but dont go downing people for what they spend their hard earned money on.

So says the guy that owned both but not uses a WP7 :P

posted on 30 Oct 2011, 04:17 3

32. Sniggly (Posts: 7177; Member since: 05 Dec 2009)


And then there's the guy who bitches about everyone else arguing. Admit it, without us there wouldn't even be a need for a comments section. :)

posted on 30 Oct 2011, 23:12

58. XiphiasGladius (Posts: 804; Member since: 21 Aug 2011)


Agree. . . ;-p

posted on 30 Oct 2011, 03:00 1

26. Stoli89 (Posts: 333; Member since: 28 Jun 2010)


Seriously, don't you all know the real problem? You're not holding it correctly!!!!!!

posted on 30 Oct 2011, 03:55

30. nimo (Posts: 72; Member since: 11 Jun 2010)


I don't have those options on my Iphone 4s (UK Model)

posted on 30 Oct 2011, 09:06

35. richk (Posts: 32; Member since: 23 Jun 2010)


you must do you just cant find it lol ive got it on my iphone 4

posted on 30 Oct 2011, 07:48 1

33. Heatfan316 (Posts: 446; Member since: 21 Aug 2011)


How about this the 4s has a dual-core processor that is why you see this battery drain, welcome to the world of high end specs apple fans it's not the software, single core phones just get better battery life that's a fact, my infuse gets whey better battery life then my g2x in fact my infuse's battery life is on par with the iPhone 4 about one hour difference which is awesome for an android device and that's with a stock rom, it's real simple the more power your phone has the less battery life it will have only technology will solve this problem in the future.

posted on 30 Oct 2011, 09:09 1

37. richk (Posts: 32; Member since: 23 Jun 2010)


thats why i not a fan of all this dual core bussiness in phones just put in the best single core CPU and ill be happy.

posted on 30 Oct 2011, 10:12 1

39. Habib (Posts: 114; Member since: 26 Feb 2011)


And you my friend are wrong!

Dual core actually saves you battery, because it divides the load of work into two cores which in result does not load the core, in return u get lower battery consumption. as far single core, everything runs on ONE core and its loaded which consumes more battery volts( and what not)

posted on 30 Oct 2011, 11:35 2

41. remixfa (Posts: 14067; Member since: 19 Dec 2008)


a non optimized dual core doesnt save much battery.. an optimized one does, because it will turn off one of the cores if it can to squeeze out a lil extra juice. but yes, 2 cores barely working uses a lot less voltage than 1 core getting a workout to do the same instruction set.

posted on 30 Oct 2011, 08:43 2

34. ivanko34 (Posts: 617; Member since: 04 Sep 2011)


apple has just to read the source code of android OS to get the solution

posted on 30 Oct 2011, 09:43 2

38. trin (Posts: 88; Member since: 11 May 2010)


It's because siri won't stfu! Having a woman babble on insistently can be quite draining.
Lol. I kiid, I kiid. :D

posted on 30 Oct 2011, 10:19

40. richk (Posts: 32; Member since: 23 Jun 2010)


i wish phone world would stop increasing the speed and improve the batterys instead.

posted on 30 Oct 2011, 11:47

42. _SavioR_ (Posts: 19; Member since: 30 Oct 2011)


I hope an iPhone 4s user can help me and answer my questions....

This is my first iPhone and ive been reading news about this all over... Now, I want to know if my phone is normal or suffering the battery problem as well.

Stand by- in 6 hrs on stand by I lost 5% ( I thought you're not supposed to lose nothing at all on stand by... I made sure I closed any running apps).

Web browsing- every 2 minutes 1% drops. I literally see it too.

Talking on the phone- every 2 -3 minutes 1% drops. Is this normal?????


Android user(s),
How is the battery life on the Epic Touch 4g (GS2)?????

Thanks

posted on 30 Oct 2011, 12:43

43. Sniggly (Posts: 7177; Member since: 05 Dec 2009)


Savior, think of your phone as a computerized radio, because that's what it actually is. When you're web browsing or talking on the phone it is constantly broadcasting out a signal, picking up a response signal, and translating that signal into what you hear on the speaker or see on your screen. So apart from the screen itself, your radio is definitely going to chew up your battery the fastest. I don't know about a percent every two to three minutes, I'm too lazy to do the math right now, but your phone will die faster when you browse or call.

Also, most Android phones with mixed usage will last you from morning to night at least. It all depends on how much you use your phone, and for what.

posted on 30 Oct 2011, 14:25

44. _SavioR_ (Posts: 19; Member since: 30 Oct 2011)


Thanks for the reply Sniggly.

But this is what I copied from apple:

Built-in rechargeable lithium-ion battery
Charging via USB to computer system or power adapter
Talk time: Up to 8 hours on 3G, up to 14 hours on 2G (GSM)
Standby time: Up to 200 hours
Internet use: Up to 6 hours on 3G, up to 9 hours on Wi-Fi
Video playback: Up to 10 hours
Audio playback: Up to 40 hours


I did the math... If I was to talk for an hour, I'd lose 30%.
60 mins.= 30%
3 hrs= 90%.

This from losing 1% every 2 minutes... Which has been happening to me. So, I'm getting 3 hrs plus 20 minutes of talk time on 3G.... Far from what Apple states. Yes, I'm still one of those who uses a phone for phone calls.

posted on 30 Oct 2011, 15:37 1

47. Sniggly (Posts: 7177; Member since: 05 Dec 2009)


Yeah, the percentage did seem high to me. Based on that math, your battery does seem to be draining really fast. I know my Atrix lasts a lot longer, and I'm getting good reports on the SGS 2 battery life.

posted on 30 Oct 2011, 18:01

50. _SavioR_ (Posts: 19; Member since: 30 Oct 2011)


That's sweet, man. I think I'm gonna put this up on CL and trade for a Nexus S plus $200 cash. I know someone will do it.

If not, just trade it for a E4GT straight across. Nothing against the iPhone, but I need something that will last me hrs without using it. Thanks again, Sniggly.

posted on 30 Oct 2011, 18:56

53. remixfa (Posts: 14067; Member since: 19 Dec 2008)


best phone/battery u can get right now is going to be the SGS2. PA's test had it lasting 2 days with regular use.
We will see how the nexus actually performs when it is officially launched

posted on 31 Oct 2011, 13:36

61. gallitoking (Posts: 4690; Member since: 17 May 2011)


http://www.techenclave.com/mobile-phones/samsung-galaxy-s2-awful-battery-life-198224.html


samsunggalaxysforums.com/.../4654-Poor-Battery-Life!

posted on 31 Oct 2011, 19:06

63. toaster (Posts: 114; Member since: 13 Sep 2011)


And the point of that post was...?

If you read those threads beyond the first post instead of just copypasting the first links that searching "galaxy S2 bad battery life" gives you, it's not like there's a single post echoing the OP's sentiments.

Please troll elsewhere, thanks.

posted on 30 Oct 2011, 19:33

55. biophone (Posts: 1896; Member since: 15 Jun 2011)


Hey lower your brightness and turn off location settings. The iphone's battery life is better then most other smartphones so if you arent satsified with its battery there is not going to be a grest solution. What i would suggest is getting an extended battety pack on a android phone or getting a case for iphone with a extended battery.

posted on 30 Oct 2011, 17:20

49. toaster (Posts: 114; Member since: 13 Sep 2011)


Despite the big screens, all of the versions of the GSII (except for the T-Mo version) have markedly good battery life. Obviously you're not going to get a week out of it if you are talking on the phone 24/7, but it is pretty near the top of the pile for an Android phone. The E4GTouch is especially good because of it's super sized battery. The T-Mo version, because of the higher clock speed, gets much worse battery life, but that's a bit irrelevant.

And yeah, putting your phone on standby still drains battery because of the radio. You would have a problem if your battery discharged while the phone was off ;) Those percentages seem high, but make sure Wi-Fi is off when you're not using the Internet, and that your brightness is set to Auto or minimum if you're not outside.

posted on 30 Oct 2011, 18:04

51. _SavioR_ (Posts: 19; Member since: 30 Oct 2011)


Yeah bro. Wifi, bluetooth, and some notifications are off. Screen is at default. I even restarted this crap and nothing. I think the Nexus S or E4GT will do better since I haven't been hearing any major problems. E4GT looks nice, but you could never go wrong with a pure stock Android (nexus s). Thanks for your help.

posted on 31 Oct 2011, 18:57

62. toaster (Posts: 114; Member since: 13 Sep 2011)


No prob :D That battery life seems horrendous. The only other thing outside of defect that I can think of is that you're browsing in an area where the phone is fighting for 3G signal, making it constantly switch in between 2G and 3G. That affects battery life as well. If that's not the case, I would look into replacing it if possible.

If you're looking for stock Android, don't get the Nexus S seen as the Galaxy Nexus is just around the corner :) No word on when Sprint will get it, but hopefully it is soon.

posted on 30 Oct 2011, 14:28

45. _SavioR_ (Posts: 19; Member since: 30 Oct 2011)


As for web use. I'd be getting the same... Instead of the 6hrs Apple states. I may have to sell this and just buy a Nokia N9.

posted on 30 Oct 2011, 15:32

46. readingthissh1t (Posts: 303; Member since: 20 Jul 2011)


I SCREAM FOR ICE CREAM! probably irrelevant

posted on 30 Oct 2011, 18:07

52. _SavioR_ (Posts: 19; Member since: 30 Oct 2011)


I saw the Nexus S running ICS and I am impressed.

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