Battery life on Haswell

I got my new Haswell MacBook Air just 2 days ago, and also, this is my first ever MacBook.
So, I just noticed something in the System Information app that worries me.
I noticed that the full charge capaciy is greater than the charge remaining, even on a full charge, and so on. I am posting the image below.
Is this normal, or did I get a defective battery? If so, what do I do now? I am leaving my town for 2 years in 2 days, so I need help fast!

Much better now, your solution worked.
Thanks a lot! I really can't thank you enough! Your replies were fast and all were helpful!
Sorry I accidentally clicked this helped me instead of this solved my problem.
Now I am getting 10 hours remaining on my full charge, and also full mah charge. I noticed one thing though, my battery went from 9:58 to 10:08 to 10:18 to 10:21 while typing this, thats good, but could that be caused by some other problem? Alright, its 10:20 now, so finally settling?
Edit : i went up to 10:30 now.
Message was edited by: dhamaniasad

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Core i7 Haswell's - Significantly Less Battery Life Than The Core i5's?

Is anyone with a Core i7 macbook air, new one with the Haswell processors, seeing less battery life than the same system with a Core i5?
Long story short, I started out with the Core i5 and 4gb ram (store bought) and decided after a week to go with 8gb ram and figured I'd up the CPU to the i7 as well and ordered from Apple.com.
The original Core i5 REALLY WAS getting upwards of 12 hours on battery; this Core i7 is more around 6+ hours. I took it to my local Apple store, they tested it out, showed everything hardware wise was fine and suggested reloading to factory...Done (nothing installed/change from factory; NOTHING)...Same issue...
I know, and expected, to get less battery life with the Core i7, but almost 50% less? ***?
Anyone else seeing this?
Thanks!
Scott

Several have reported same, contrary to vociferous statements by others to the contrary, since the I7 idles at a low power consumption, and bursts data quicker than the I5
You are not supposed to be getting that, if as you say you have NOTHING installed at all, just factory. However that rating is for minor web surfing and word processing etc.
More important than longer batt. life to me are these stats. Id return it and get your orignal I5 13" ..but get 8gig of ram.
Geekbench: i5: 5868, i7: 6287 (+7%)
Handbrake: i5: 12min12s, i7:12min5s (-1%)
Cinebench: i5: 11.13fps, i7:11.54fps (+4%)
iMovie: i5: 5min1s, i7: 4min56s (-2%)
PhotoShop: i5: 68.7s, i7:57.4s (-17%) <<<<only "real" improvement area of the I7
Final cut: i5: 2min7s, i7: 2min 4s (-2%)
But your I7 experience is not supposed to be normal however,.....despite many others reporting same.
Love my new macbook Air, ....sounds like you loved your original I5 13" , .....seems youve come full circle.

DPI vs HiDPI on battery life

I know this may greatly vary from usage to usage due to how much/frequent scaling takes place in HiDPI depending on the applications used but I would like to hear your personal accounts in this regard. Please kindly state:
how much battery life you are getting on DPI vs HiDPI
what applications you are using and your resolution setting
your specific rMBP (year and model)
your specific OS X including its current version

I did some experiments with the coconut battery application. I tried a webpage that does not normally cause a stutter problem and a problematic web page. I choose an Apple Support Community webpage (Macbook Pro Retina 13" late 2013 (Haswell) UI Lag) for the former and continuously scrolled up and down. For the latter webpage, I choose the following one (http://www.traveltheroad.com/store/travel-the-road-expedition-journal) that is notorious in the above-mentioned thread and also continuously scrolled up and down. I must note that I have Clcktoplugin 3.0 installed and therefore the embedded video was neither playing nor even ready to play due to the said plug-in which provides the option of playing the video in HTML 480p and 720p as well as Flash. I may later run the test while playing the video at 720p HTML and flash as well without scrolling in both pages later. The screen brightness was at the second level and the only open application during the test was Mail and Coconut Battery. My Mac is Late 2013 Haswell rMBP mid-tier model with Iris graphics. OS X version is 10.10.1:
Scrolling the Apple Support Page:
1280 x 800 normal DPI : 9.5 watts          1440 x 900 normal DPI : 10.1 watts          1680 x 1050 normal DPI : 10 watts
1280 x 800 high DPI     : 11.3 watts        1440 x 900 high DPI     : 13.5 watts           1680 x 1050 normal DPI : 16.2 watts
Scrolling the problematic webpage without playing the video:
1280 x 800 normal DPI : 20.7 watts         1440 x 900 normal DPI : 22.9 watts          1680 x 1050 normal DPI : 25.2 watts
1280 x 800 high DPI     : 36 watts            1440 x 900 high DPI     : 35.9 watts           1680 x 1050 normal DPI : 36.8 watts

The real world battery life of a 2013 MacbookAir ?

Here is my situation. I use my Air a lot in the field (photography, and a few other things). It is the model before the 2013.
My question is, is the battery life of the 2013 model as good as it is said to be? I read reviews which say 7 hours or more of battery life, in real world conditions. This is a lot of time, a game changer.
I am definitely considering buying the new model, but only if the battery life is significantly better (my current Air is only a year old). Can anyone who used one of these fine machines give me their thoughts? Is the battery as good as claimed, is the battery life ok (I have read that the new batts have a shorter life span).
Any advice appreciated.
Ian

Ian999
is the battery life of the 2013 model as good as it is said to be?
I get 12+ hours out of mine, it depends on what you are running as the main factor
compared to my 2012 model I sold, the improvement is a bit stunning.
Ian999
I read reviews which say 7 hours or more of battery life
Again, that totally depends on WHAT you are running, ..videos, a good bit less
Ive owned 3 Air, the battery life on the new Haswell is incredible, far better than last 2012 model, as apple.com chart will indicate to you.
Youre not going to find another superslim notebook/laptop with this power that does it all with THIS kind of battery life.
Keep it plugged in when near a socket so you keep the charging cycles down on your LiPo (lithium polymer) cells / battery, but not plugged in all the time. When not being used for several hours, turn it off.
And best "tip" is if its near a socket,...plug it in as long as you can (especially at home) since cycle count on the battery are the "miles that wear out the tires (battery)", however again, not plugged in all or most of the time.
http://www.apple.com/batteries/notebooks.html
"Apple does not recommend leaving your portable plugged in all the time."
While cycle count is commonly seen to be the “miles” on your Lithium Ion pack cell in your Macbook, which they are, this distinction is not a fine line at all, and it is a big misconception to “count charge cycles”
*A person who has, for example, 300 charge cycles on their battery and is recharging at say 50-60% remaining of a 100% charge has better battery usage and care than another person who has 300 charge cycles at say 15% remaining on a 100% charge.
DoD (depth of discharge) is far more important on the wear and tear on your Macbook battery than any mere charge cycle count. *There is no set “mile” or wear from a charge cycle in general OR in specific.    As such, contrary to popular conception, counting cycles is not conclusive whatsoever, rather the amount of deep DoD on an averaged scale of its use and charging conditions.
(as a very rough analogy would be 20,000 hard miles put on a car vs. 80,000 good miles being something similar)
*Contrary to some myths out there, there is protection circuitry in your Macbook and therefore you cannot overcharge it when plugged in and already fully charged
*However if you don’t plan on using it for a few hours, turn it OFF (plugged in or otherwise) ..*You don’t want your Macbook both always plugged in AND in sleep mode       (When portable devices are charging and in the on or sleep position, the current that is drawn through the device is called the parasitic load and will alter the dynamics of charge cycle. Battery manufacturers advise against parasitic loading because it induces mini-cycles.)
Keeping batteries connected to a charger ensures that periodic "top-ups" do very minor but continuous damage to individual cells, hence Apples recommendation above:   “Apple does not recommend leaving your portable plugged in all the time”, …this is because “Li-ion degrades fastest at high state-of-charge”. This is also the same reason new Apple notebooks are packaged with 50% charges and not 100%.
LiPo (lithium polymer, same as in your Macbook) batteries do not need conditioning. However...
A lot of battery experts call the use of Lithium cells the "80% Rule" ...meaning use 80% of the charge or so, then recharge them for longer overall life.
Never let your Macbook go into shutdown and safe mode from loss of power, you can corrupt files that way, and the batteries do not like it.
The only quantified abuse seen to Lithium cells is instances when often the cells are repeatedly drained very low…. key word being "often"
The good news is that your Macbook has a safety circuit in place to insure the battery doesn’t reach too low before your Macbook will auto power-off. Bad news: if you let your Macbook protection circuitry shut down your notebook at its bottom, and you refrain from charging it for a couple days...the battery will SELF-DRAIN to zero (depending on climate and humidity)…and nothing is worse on a Lithium battery being low-discharged than self-draining down to and sitting at 0
Contrary to what some might say, Lithium batteries have an "ideal" break in period. First ten cycles or so, don't discharge down past 40% of the battery's capacity. Same way you don’t take a new car out and speed and rev the engine hard first 100 or so miles.
Proper treatment is still important. Just because LiPo batteries don’t need conditioning in general, does NOT mean they dont have an ideal use / recharge environment. Anything can be abused even if it doesn’t need conditioning.
From Apple on batteries:
http://support.apple.com/kb/HT1446
Storing your MacBook
If you are going to store your MacBook away for an extended period of time, keep it in a cool location (room temperature roughly 22° C or about 72° F). Make certain you have at least a 50% charge on the internal battery of your Macbook if you plan on storing it away for a few months; recharge your battery to 50% or so every six months roughly if being stored away. If you live in a humid environment, keep your Macbook stored in its zippered case to prevent infiltration of humidity on the internals of your Macbook which could lead to corrosion.

Battery life on brand new 13" retina MBP disappointing

Waited a long time to buy the Haswell retina 13" MBP with improved battery life ('9 hrs wireless web'). So far I'm only managing 5 hrs max. And all I do is browse the web and some text editing. Anyone else disappointed? Not sure if I should go have it looked at or if I just fell for another marketing spin. I imagine being told even 2 hours is still 'up to 9 hours'. Grr.

I've actually noticed this problem. Sometimes I'll have 10-12 hours and then suddenly it'll drop to five. I'll turn off wi-fi, bluetooth, set the brightness to two or three and close all programs, and barely see any change.
Last night I did some investigating and found that the kernal_task was eating up CPU cycles, running at 100-110% non-stop. I restarted the machine and the kernal_task went back to normal and stayed there for a while, and my battery life showed HUGE improvements. I think it might actually be related to the keyboard/trackpad issue others have seen because I've noticed (anecdotally) that the decrease in battery life usually follows the unresponsive spell.
I'm planning to test and document this weekend so that I can report it to Apple. I'd suggest that you look at the Activity Monitor for the kernal_task when you're getting poor battery life and see what percentage it's running at. I suspect you'll see it's high. When it's running normally, I get crazy good battery life. If you find it is, take screen shots and report it to Apple. Runaway kernal_task is not a new probelm with a new OS. It's been reported in most of the other major releases.

Possible Internet Tethering/Battery Life Issue

When either Cellular Data is turned Off, or Airplane Mode is turned On, Internet Tethering (Settings>General>Network) appears to have some process that runs continually in the background (evident by continuously spinning wheel next to the option). The running process has a demonstratively negative impact on battery life (1/3 reduction in ~ 30 mins). The Apple Genius at my local Apple Store and I verified the issue on numerous iPhone 4s that were on display. Turning Cellular Data On and ensuring the phone is not in Airplane Mode stops the activity. But obviously that defeats the purpose of having those options.
So if you are experiencing poor battery life, this might be your issue.
Message was edited by: Pahsina

Could this be causing the unexplained usage and data transfer? I have been trying to find what is causing this. http://discussions.apple.com/thread.jspa?threadID=2603718&tstart=0

I recently just updated my iPhone 4s to 5.0.1 and I am losing battery life at a faster rate. How do I help my battery life or can I go back to the old system?

This is my first iPhone I am having problems with my battery life. I recently updated to the new operating system for the iPhone 4S. I am losing battery life at a quick rate is there anything that I can do.

You can search the forum and read the many helpful posts with suggestions on how to improve your battery life.

My new ipod touch's Battery life is extremely short

I bought 10 days ago the latest iPod touch and it is getting very poor battery life.
Even without using multitasking and with having notifications turned off, it is running from full to empty in less than two hours.
What is it that I have to do between all the things people recomend?
- Reset Network Settings
- set it up as a new device with no apps
- Powering off every night
- Shutting down Wi-fi all the time
- turning off push mail, notifications, etc
- Turning off "Location Services"
I've tried doing the lasts 4 things and nothing improved..
Or is it just because it's new and in the future it'll work longer?
Thanks you all for your useful answers!

You might check out this thread for possible help.
http://discussions.apple.com/thread.jspa?threadID=2474499&tstart=90

How can you get OS Lion back if you already downloaded Mavericks? I CANNOT live with the battery life of 2 hours!! HELP

How can you get OS Lion back if you already downloaded Mavericks? I CANNOT live with the battery life of 2 hours!! HELP

Kappy wrote:
Don't downgrade OS X without first erasing the drive. You cannot restore a Time Machine backup of Lion directly on top of a later version of OS X such as Mountain Lion or Mavericks.
When you "Restore from a Time Machine Backup.", the drive will be erased for you, but yes, won't hurt to:
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IPhone 4S Battery Life: Best solutions and procedures for 1st time user: 1-Do you have a battery life issue (learn first what the usage time spec is about) 2-What can you try to remedy the situation without reading 500 pages of posts

What follows is a grouping of some of the most fruitful procedures - from what I've seen in the biggest battery life issue thread - and some background information and discussion for solving or improving the battery life with the iPhone 4S and may be applicable also to devices on which iOS 5.0/5.0.1 has been applied. Credit goes to the respective users who contributed this information to the forum and they should be commended for doing so. This is not a final listing. The goal here is to provide a first stop sort of knowledge base document for newcomers instead of having them perusing the never ending threads where the wheel is reinvented on every page...
Please don't post your questions, usage screenshots, or claims that it worked or not for you or anything here except PROCEDURES/DEBUG STEPS/SOLUTIONS or improvements to the procedures already listed here. Try to use point form and to be as concise and clear as possible. Hope all this helps.
Thank you and good luck!
General info and specs
First, take a look Apple's battery tips, info and specs(obligatory reading for all Iphone 4S users - read it once and for all):
http://www.apple.com/batteries/iphone.html
http://www.apple.com/batteries/
... you didn't read it? loll Always remember this i.e. the definition of "usage":
Usage: Amount of time iPhone has been awake and in use since the last full charge. The phone is awake when you’re on a call, using email, listening to music, browsing the web, or sending and receiving text messages, or during certain background tasks such as auto-checking email.
I'm still not convinced you read the links so here's what Apple has to say in terms of fine tuning your battery life:
Optimize your settings
Depending on how they are configured, a few features may decrease your iPhone battery life. For example, the frequency with which you retrieve email and the number of email accounts you auto-check can both affect battery life. The tips below apply to an iPhone running iOS 5.0 or later and may help extend your battery life.
Minimize use of location services: Applications that actively use location services such as Maps may reduce battery life. To disable location services, go to Settings > General > Location Services or use location services only when needed.
Turn off push notifications: Some applications from the App Store use the Apple Push Notification service to alert you of new data. Applications that extensively rely on push notifications (such as instant messaging applications) may impact battery life. To disable push notifications, go to Settings > Notifications and set Notifications to Off. Note that this does not prevent new data from being received when the application is opened. Also, the Notifications setting will not be visible if you do not have any applications installed that support push notifications.
Fetch new data less frequently: Applications such as Mail can be set to fetch data wirelessly at specific intervals. The more frequently email or other data is fetched, the quicker your battery may drain. To fetch new data manually, from the Home screen choose Settings > Mail, Contacts, Calendars > Fetch New Data and tap Manually. To increase the fetch interval, go to Settings > Mail, Contacts, Calendars > Fetch New Data and tap Hourly. Note that this is a global setting and applies to all applications that do not support push services.
Turn off push mail: If you have a push mail account such as Yahoo! or Microsoft Exchange, turn off push when you don’t need it. Go to Settings > Mail, Contacts, Calendars > Fetch New Data and set Push to Off. Messages sent to your push email accounts will now be received on your phone based on the global Fetch setting rather than as they arrive.
Auto-check fewer email accounts: You can save power by checking fewer email accounts. This can be accomplished by turning off an email account or by deleting it. To turn off an account, go to Settings > Mail, Contacts, Calendars, choose an email account, and set Account to Off. To remove an account, go to Settings > Mail, Contacts, Calendars, choose an email account, and tap Delete Account.
Turn off Wi-Fi: If you rarely use Wi-Fi, you can turn it off to save power. Go to Settings > Wi-Fi and set Wi-Fi to Off. Note that if you frequently use your iPhone to browse the web, battery life may be improved by using Wi-Fi instead of cellular data networks.
Turn off Bluetooth: If you rarely use a Bluetooth headset or car kit, you can turn off Bluetooth to save power. Go to Settings > General > Bluetooth and set Bluetooth to Off.
Use Airplane Mode in low- or no-coverage areas: Because your iPhone always tries to maintain a connection with the cellular network, it may use more power in low- or no-coverage areas. Turning on Airplane Mode can increase battery life in these situations; however, you will be unable to make or receive calls. To turn on Airplane Mode, go to Settings and set Airplane Mode to On.
Adjust brightness: Dimming the screen is another way to extend battery life. Go to Settings > Brightness and drag the slider to the left to lower the default screen brightness. In addition, turning on Auto-Brightness allows the screen to adjust its brightness based on current lighting conditions. Go to Settings > Brightness and set Auto-Brightness to On.
Turn off EQ: Applying an equalizer setting to song playback on your iPhone can decrease battery life. To turn EQ off, go to Settings > iPod > EQ and tap Off. Note that if you’ve added EQ to songs directly in iTunes, you’ll need to set EQ on iPhone to Flat in order to have the same effect as Off because iPhone keeps your iTunes settings intact. Go to Settings > iPod > EQ and tap Flat.
Usage specs for the 4S - http://www.apple.com/iphone/specs.html:
Talk time: Up to 8 hours (12.5% per hour drain) on 3G, up to 14 hours (7.1% per hour drain) on 2G (GSM)
Standby time: Up to 200 hours (0.5% per hour drain)
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)
So a scenario of normal usage could be for example: 4 heavy hours of 3G internet browsing (66.4%), with one hour of call on 3G (12.5%) and 22 hours of standby (11%) = 100%
A battery life issue is a problem where the drain is really out of spec either during usage or standby or both. For example, multi-% per minute drain during usage or a 10% drain per hour during standby is problematic. Browsing the internet on 3G during one hour and losing 16-17% is not.
Apple's test methodology for claiming the specs:
http://www.apple.com/iphone/battery.html
Procedures
davidch tips (reset+full discharge recharge):
Go through these steps to address the battery after updating to iOS 5.0.1:
1. Reset all settings (settings app-> general-> reset)
2. Go through initial setup steps (lang, wifi, siri, enable location, etc) and choose setup as new phone (don't worry your apps, data, contacts, mail will still be there). Do NOT restore from iCloud or iTunes (It can copy back corrupt settings)
3. Turn off system location services timezone and iAd
4. Fully discharge battery (tilll it shuts off with the spinning wheel)
5. Fully recharge battery (overnight if possible)
In my experience this improves the Standby battery drain issue significantly in most cases. It reduces drain from 2-4% or more per hr to 0.5% or less. It has worked for many, many users now. If it does not work after a few try's you may have a real battery or hardware issue and should contact Apple. Good Luck!
ram130's variant of davidch i.e. additional steps:
Now using davidch original steps and attaching the tweaks I made to get me more usage. As shown on page 29.
Go through these steps to address the battery after updating to iOS 5.0.1:
1. Reset all settings (settings app-> general-> reset)
2. Go through initial setup steps (lang, wifi, siri, enable location, etc) and choose setup as new phone (don't worry your apps, data, contacts, mail will still be there). Do NOT restore from iCloud or iTunes (It can copy back corrupt settings)
3. Turn off system location services timezone and iAd
4. Fully discharge battery (till it shuts off with the spinning wheel)
5. Fully recharge battery (overnight if possible)
6. Disable Siri 'Raise To Speak' and REBOOT *( if possible use another camera to verify the                 infrared is off after the reboot).
7. Set emails, icloud and calendars to fetch. ** test. Mines on hourly.
8. If your in a no signal and your phone is saying "Searching..." even after 10mins, reboot while in that area and after 1-2min it should say "No Service". This mainly applies to Verizon customers and improve battery life in these areas.
9. *optional* Goto Settings > General > Network and you will see "Hotspot.." loading something, wait a few seconds and it should say "setup personal hotspot" then exit out.
* I notice a great improvement after disabling this and rebooting. This increased my "screen on" usage or at least helped it. Make the change.
** I have not tested push yet to narrow down the drain but I had this change on my phone. I believe exchange push is responsible for some stand by drain. As for icloud, haven't notice much of a difference. Just try it for a day. My email still came in fast most times. Again still testing, will report back on these..
buxbuster tips(wifi sync, iCloud):
These are my own tested workarounds that worked for my iPhone 4S and seemed to have worked for others as well :
Workaround number 1. Deselect wifi-sync in iTunes and press sync.
If that doesn't work try :
Workaround number 2 : Remove iCloud, reset network settings. ( I guess this won't work for you since you don't have it enabled ).
If both workarounds fail, you can always try to completely wipe your phone. That also solved some of the cases out there.
rolandomerida tips - i.e. buxbuster and additional steps:
Finally, I solved the syncing error loop. My contacts are syncing flawessly again between my devices and iCloud, and yes, the battery stopped draining, which is the main topic here.
I followed instructions from buxbuster (check his workaround a few pages up!) and an additional BIG step to restore contacts and syncing, as seen in a MacRumors forum.
This is what I did:
1. Make a backup of your Address Book, using the vCard option (or both, it doesn't hurt). Save it for later.
2. In your iPhone, delete iCloud account. When it asks, accept both: delete AND delete from my iPhone.
3. Reset network settings. The iPhone will restart, then will ask you to unlock the SIM card.
4.Turn Wi-Fi on.
5. Add the iCloud account again.
That's for Buxbuster's workaround. For some, it might work just like that. My iPhone repopulated from iCloud after step 5, but I still had that "server error" on iCloud. I had to do some extra steps, since my Mac was not syncing to iCloud and couldn't edit anything on my Mac or iCloud. Syncing back had to be fixed, too. If not, the syncing loop would continue from my iPhone, and the battery would drain awfully again.
1. In System Preferences -> iCloud, I turned Contacts off. I chose "keep on My Mac" those contacts, but I got an empty Address Book after a while. And a few minutes later, iCloud contacts were empty and my iPhone also. It is scary at first! Now, before importing that vCard backup...
2. Turn Wi-Fi off. This is important, since your contact-empty iCloud will attempt to wipe your Address Book from your Mac in seconds after importing.
3. Import your vCard backup to Address Book. Just drag it to your blank Address Book window; it asks if you want to import "x" number of cards. Of course, say yes.
4. Turn Wi-Fi on, and then iCloud contacts on again (System Preferences -> iCloud). It will offer to merge your newly populated Address Book with iCloud (which is empty at this point). It should upload every single contact to iCloud, and then to your iDevices. If not, a fifth step would be to import the vCard file to iCloud, but it shouldn't be necessary.
So, with iCloud syncing working correctly, there is no battery draining! Again, that was my particular issue.
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
This is the MacRumors discussion:
http://forums.macrumors.com/showthread.php?t=1256807
And dont' forget to check buxbuster's fix, video, and THANK him!
Miless tips (full 800mb release of 5.0.1 and sanitizing a restore):
As for 4S battery life. Try doing this,
1. Settings>Location Service ... disable all location services you do not need. In particularly Facebook because it drains the battery a lot.
Scroll down to the bottom at Settings>Location services>System Services ... Disable Setting Time zone, location based iAds, Diagnostic & Usage.
2. Settings>Notification>Calendar ... turn off the Notification Centre.
3. Settings>General>Reset ... do Reset All Settings. Doing this will not wipe out your iPhone. It will just Reset the network settings, location warning, keyboard dictionary, etc... but it will clear up some corrupted data there. Generally this will help.
Try these 3 steps first... if it still drains a lot, try the following,
4. Drain your battery down to 1%. Then charge it up using USB from PC ... not the charger. The charger output 1.0 A ( x 5V from USB ... you get 5W power). From PC, output is only 0.5A x 5V = 2.5W power. Charging is slower but trickle charge 4S helps the battery retain its charge better. I think it takes about 3-3.5 hours to charge full from USB/PC compared to slightly below 2 hours using iPhone charger.
If after doing the above still could not solve your battery issues (mine with iOS 5.0 was ok up to step 4, but not iOS 5.0.1).... plug you iPhone to a charger (any charger), from iPhone, access your iCloud ... set it up if you havent. Back up your iPhone data to iCloud. if you do not have enough storage (only 5GB is free), go to details and select the apps you need its data backup, choose only those you really need and leave those unnecessary ones out. Back up your camera roll to your PC/Mac manually as it could be too big to backup to iCloud.... once you have it setup, make sure you are on Wifi ... tap backup to iCloud from your iPhone. It will take a while if the file is huge.
Once backup to iCloud is completed, plug your iPhone to PC/Mac and launch iTunes 10.5.1 (make sure you have 10.5.1)
Click Restore. It will automatically initiate a download of iOS 5.0.1 ipsw for iPhone 4S. Wait for the whole process to finish, ie. download, restore software/firmware.
Once its done, do not set up your iPhone from iTunes. Set it up on your iPhone. Go through the selection. When prompted, select restore from iCloud (from your iphone backup earlier). Keep your iphone plugged into iTunes while restoring backup from iCloud. Because while restoring from iClouds, some data will be synced from iTunes if you plug in, e.g. music, video, etc... unless you bought these content from iTunes store. Apps will be downloaded from App Store from the cloud.
Once it's all done restored. Turn off your iPhone,.. and turn it on again.
Now, hopefully your battery wont be draining so fast anymore. Usually it wont after this. But you need to charge your battery at least 4-5 cycles to stabilize the charge on the battery. I dont know why... but battery life seems to get better and better for me after a few charge cycles after all the above work.
Good luck. Let us know if it works for you.
W. Raider tips (Sirii):
Bottom line for me of things that helped battery life are:
1. Turing off Siri and Rebooting the phone by holding the Home button and Top button down, ignoring the slider, until the phone shut down. (turn off Siri, reboot, and check top front of iPhone 4S against a lesser camera like the front-facing camera on an iPad2 - making sure the IR sensor is off)
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

How do I maximise battery life on iphone 5s

I have just got an iphone 5s and the battery life is terrible. With my 4s I used to double click the home button then I could close down each app fully as they showed up in a row and I could press an x. I cant seem to do this with the 5s. Please help, its lasted 9 hrs since charging and I ve been asleep for most of them!!! I tried Apple support chat but after over 30 mins I didnt get a reply.

To shut down apps double-click the home button then swipe the app screen shot upwards. However, very few apps actually run in the background.
The list of apps you see when double-clicking the home button is only a list of recently used apps, it is NOT a list of all running apps.
Battery life will improve over the next days and weeks as the battery is used.

After iOS 8 update wifi is so slow and battery life is much worse

After installing iOS8 on my 5s the wifi and 3G has slowed remarkably down. The facebook app now doesn't refresh unless I turn the phone off and on again and safari takes an age to load it's pages. Also the battery life is even worse than before. I used the maps yesterday for 1.5 hours for a trip and it took me from full battery down to 10% in that time. This is really irritating me now, will it be fixed?

Like you I have a 4S running on iOS 8, and since the upgrade to 8 my battery drains like crazy. I'm not experiencing the wifi issues that some of the other posters are having, but the rapid battery drain seems to be a common issue. I keep hoping Apple will address this with their updates for iOS 8, but it always seems to be overlooked.

IPhone 5s battery life issues

hi guys
I feel like there is a problem with my iphone 5s. the battery life is really bad compared to my last iphone 5. I used to be able to charge my phone at the end of the day and would till have 40% or 50% left. now with this new iphone, it reaches down to 10% or simply dies by the time I get home at 6pm. I have turned off everything and i have searched google for all sorts of turn off tweaks so i could get the maximum battery life, but its still really awful. i listen to music for about 20 mins while on the underground train and later i might or might not get a text message or two and that is about it; the phone still yet loses all of its battery life while doing absolutely nothing. today i unplugged it from the charger and it suddenly went down to 99% right in front of my eyes.
i am going to the apple store on Tuesday to ask them if they could check it out. so my question is; have i missed something here or is everyone's phones are as such but not even one person is talking about it or they just don't care or embarrassed to talk about it, or what ????
btw my last iphone and this one are both 64GB black.
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I have had the 5s for a week now, and I am having the same issue. I have restored the phone three times now, twice through iCloud backup and once through iTunes. I have shut down all functions of the phone as suggested, which is stupid, that's the whole point of having the iPhone, and anytime I do anything with the phone, the battery drains 5 - 10%, and its quick things like, checking email, then quickly closing that app, sending a couple text messages, and listening to one voice mail and I am down to 50 %. Not sure if it is ios7 or a 5s issue, all I know is last week I had a iPhone 4 that I had everything turned on all the time, I checked email constantly, text frequently, made calls and used the Internet and easily went three days without concern. Now I'm scared to check the time for fear of draining battery on the new phone. I also had the battery completely drain twice now and then charged it to 100%, and that has not helped either. I was much better off with my iphone 4 that I could at least use, and wish I had not traded it in at time of purchase. No point in having a phone that I have to disable all functionality and try not to use unless I know I am going to be near a outlet. So disappointed!!!! First time I have ever been mad enough to make a comment on a forum!

5 days old iPhone 5 iOS 6.1.4 battery life please help

My phone is 5 days old and i am so fed up with battery life. I disabled all data settings and location services and i have nothing in notification center for any push notification. But still i lost 40% of the battery in half a day with just 5 mins of voice call and 15 mins of texting. Phone was idle the rest of the time and when i used i had brightness at around just 10-15% this is my first iPhone and totally disappointed as i saw battery to last a full day of normal usage in the internet. I am totally fed up with apple. What should i do now ? I am a student and invested an year's savings of mine to get this phone. I am totally fed up. Someone please help me.

You have to tell us what your usage pattern is like, what your reception/signal strength is, and what network type you are using (E/3G/4G/LTE)
To note, the more the screen is on (in long intervals 2+ minutes) the shorter the battery life is.
Streaming music over 3G will last 6 hours if the screen stays off for most of that time.
Email, messages, web browsing will last most of the day.
Since you have GSM, your phone should last 10 hours with light usage.

Has anyone encountered drastic shorter battery life both on iphone 5 and ipad since updating to iOS 6.1.2? How can this problem be solved?

Dear all,
I am new to this community even though I have been a Apple user for years, so please forgive me if this question is not in the right section.
Has anyone encountered drastic shorter battery life both on iphone 5 and ipad since updating to iOS 6.1.2? I've always been happy with these two products until the update - now the battery life is considerably shorter which is extremely frustrating.
How can this problem be solved? Is there any way to go back to the previous version?
Thanks for your help.

If you update using iTunes the phone is first wiped clean, then the new OS is installed, and finally the backup is restored. After this finishes if you sync your music should be restored. Music is not in the backup, because it is already on your computer and duplicating it would use up a lot of hard disk space.
An OTA update just patches what has changed; it does not disturb content.

Battery life on Haswell

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