Q: iPhone 4s Battery Life?

Just chucking my 2 pence, (or 5 cents if you are a yank) into the pot.

The iPhone 4s I got had atrocious battery life but what I noticed was that the Settings, Location Services, System Services, Setting Time Zone was constantly accessing my location, and therefore constantly pinging GPS. I have since turned that off, along with Diagnostics & Usage and Location-Based iAds, and also turned off Settings, General, About, Diagnostics & Usage.

I ran the phone down till it turned itself off, then gave it a full charge over night and now battery life seems fine.

Under Settings, Location Services, System Services turn on Status Bar Icon so you can check if something is constantly accessing the GPS.

Remember, as with any smart phone, running any O/S, you are never going to get more than a working day out of it, if you use it with any kind of zeal, before you have to charge it.

This is purely anecdotal, but it has worked for me

@Morituri: as I wrote - these are the obvious things that I already switched off & tried. It does not seem to be the solution for every case of battery drain.

I used iPhones for the last almost 4 Years - never experienced anything like this. Even a Smartphone in standby lasts several days.

I installed istat and i got kinda scared! My phone has an average load over the last 5 minutes for 80% Load and 15 min is 50%....it seems to be constant over 30%

To bad i cant see what task is doing what. =(

The posting from NC Kishore on Page 20 worked for me.  I had restored from my previous 4 settings which I think may contribute to the drain.

I conditioned the battery with 3 or 4 complete drains and then deleted anything that could be restored manually.

I deleted all my apps to save time inthe backup.

I then backed up to iCloud and did a complete wipe of my phone and then restored from the cloud back up.

It is worth initially restoring from your previous phone because this enabled me to keep my text conversations from my previous phone but you then have to backup to iCloud and do a full wipe and reset then restore from the cloud.

My battery life has gone from lasting about 8 hours tops to what I would call a normal expectancy.

I unplugged it at 8:00pm last night and went down the pub.  Took a few vids, did a few texts and checked Facebook etc...  I came home about 2ish forgot to plug my phone in but when I woke up at 9:00 this morning, I still had approx 65% which is far better than I was getting. 

Hopefully that's it solved for me.

Thanks to NC Kishore, cheers mate...

My all new iPhone 4S also suffers from massive battery drain. I have an app called iSystem Info to see the CPU load. My iPhone often gets very hot and when I start iSystem Info I can see a CPU load between 75% and 85% all the time. The load even stays at that level when I clos all the apps.

Another problem I noticed is permanent GPS logging. When I use an app like facebook, the GPS symbol stays active even after switching to an other app or closing this app. I disabled the localization now completely - but this can not be the solution for this problem.

My iPhone 4 lasted at least two days befor I had to recharge it. My iPhone 4S lasts sometimes only a couple of hours. So Apple: What is the solution? When will we see an iOS update to fix this?

Stefan

Apple needs to do something about this problem.  I just bought a 4s today and will be returning it tomorrow.  I think they released a nonJobs release.   I hate to say it, but I think they took advantage of his death to promote a product.  What we have is an innovative product, but no where near revolutionary.  If Siri could handle more, maybe. If the battery life was extended..maybe(instead reduced significantly), if thinner, maybe.  What we have is the same phone with a guessing issue to the upgrade.  No one is impressed by it when I bring it out including myself.  This is apple's Windows ME and I am returning tomorrow to wait for the real next revolution in phones.

I know it has an improved camera and a A5 processor, but it needs to be asked at what sacrifice.  Sure, I could have an incredible 1080p recorder and 1 billion core processor that told god whats up, but it would only run for one second. 

Lets face it, apple early released this. Siri can run on the 2g as it is all server bound.  we are being forced to buy an overexpensive camera that can run games(however arent run well due to lack of controls on an iphone).  It is obvious to me, and to most consumers.  I am sad to think no one will really care now that jobs died. 

With Jobs went the vision and direction.  Impress me? 4S, this was your chance and you failed miserabily.  The 4S reminds me of what I could think of and/or worse.   Apple, you converted me for a minute.

Also, lets admit it...Siri can not do all that much.  There are much more times that Siri fails than gets it right.  Yes, Siri is beta, but it does not feel like a jobs product at all.  It feels more like what apple used to produce when jobs was gone....rushed, incomplete (beta) versions of things we hope will get better but never do.  I am never anti mac, but honestly let us check out battery life and see how we feel...apple fed us on this on.  Yeah brah, you NEED that better camera, and man are HIGH DEF games fun on the huge iphone screen, so upgrade!!   

As I said, it's just anecdotal!

I just downloaded this app called isystem tells you the processes ongoing on the phone whilst im typing this on my computer

in a matter of mins my iphone 4s went from 90% to 85%. i have wifi on, Radio off push notifications off except texts.

ID       Name    

0      Kernel_task

1      Launchd

12     UserEventAgent

13     notifyd

14     configd

15     Springboard

16     syslogd

17     CommCenter

22     lockdownd

28     locationd

29     wifid

31     ubd

45     mediaseverd

46     mediaremoted

47     mDNSresoinder

49     imagent

50     iapd

52     fseventsd

53     fairplayd.N94

59     apsd

60     aggregated

65     BTServer

66     aosnotifyd

72     networkd

79     MobilePhone          ( Phone)

108     MobileMail           (Mail)

150     creativeCar

158     Preferences

170     Appstore

179     iSysteminfoFree    (it's open so its in the process list =) )

I hope someone can explain all these =p CHEERS!!!!

Well after 3 complete drains and full charges my 4S battery life is now excellent.  This device is awesome and love it!!  Everything is working perfectly for me now.  This phone is a winner once you get the battery calibrated properly..

I SECOND THIS!! TURN OFF THE LOCATION SERVICES YOU DON'T NEED INCLUDING TIME ZONE STUFF THEN DO CHARGES AND DISCHARGES TO CALIBRATE. LEFT IT ON STANDBY OVERNIGHT AND LOST 4% :) BATTERY IS SO MUCH BETTER NOW!!

I have posted this is the thread I started a few days ago. I am posting it here too as it may help people....

(Check my light blue posts earlier in the thread for initial settings and update 1)

Re: Iphone 4S / iOS5 - Battery drain / issues - An idea Ihaven't seen anywhere yet (17th October 2011)....

UPDATE 2

I have managed to get my standby to only drop 1% every two hours (= 200hours standby, as quoted by apple)

The fix was simple but not ideal for everyone.

Settings - Network - Mobile data OFF

Yes, this means I am reliant on wifi for data (which I leave on; but "ask to join networks" OFF). This is fine for me as I have wifi at home and at work. And should I need 3G data I can switch it back on quick enough.

I never turned off 3G on my old iPhone 4 and still had awesome standby battery life. So this all points towards a software issue. Once iOS5.01 comes out, which it doubtlessly will, hopefully it will resolve the issue so I won't have to toggle 3G on/off.

white 64gb 02 UK

Same here after 3 days the battery issue was gone, it now works perfectly and last about a day from 7am to 23pm with normal usage during the day ( calls/browsing/siri etc..)

no specific fixes other than full drain and full charge overnight

phone does not get warm anymore etc...

I find that my battery has only gotten worse after i upgraded my 4 to iOS 5 and i was using alot of internet functions before so it's some feature of the new software that's sponging all the battery. I suspect iCloud!