Push or no push-battery life
ok this will probably sound dumb considering i used to work at AT&T and did alot of the email set ups on blackberrys and other smart phones....but...on my 3gs there is an option to turn push on or off...but i thought that when you have gmail set up on these phones that it pulls the emails at specified times...so why would i need push turned off? i guess basically id just like to know the difference between having it on or off and if that effects battery life...becuase as of right now with just texting all day...rarely talking on the phone...using yahoo some...and the internet a little bit...im running out of battery before the day is over and having to plug it into my computer at work...its very frustrating...any ideas would be nice...i know that there are tons of posts on here but i figured id ask...thanks in advance
I notice this issue.
My phone is using Gmail Push. When I see I have emails, I open the email application and notice as soon as I open it, the phone checks for emails. When I go to look in other folders that are sync'ed it checks too. Since my phone is in manual, it should not check at all, it should only pull down emails when notified.
I realize that the phone is scoring better in battery life than other 3G phones, but it could be better when reading emails. I am sure the screen display has a little to do with it too, but it should not check for emails when in push mode. This is why the BB does such a better job with battery life.
Similar Messages
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Multiple apps with push, battery life?
I know having push on lowers your battery life, I use BeeJive for messaging, and am considering getting NotifyMe! for reminders, I'm wondering if, since they're two separate applications, will they will both drain the battery life, or that since they're both being pushed through by apple, if having multiple push applications has the same effect as one?
Check your facts, please. First, of the three email services you list, only Yahoo is capable of Push email; for the others, Fetch is the only option. Google can push calendars and contacts.
How can a Push service immediately send email/events/etc. to your iPhone? The server cannot 'magically' find your phone. Your phone is already maintaining one 'live' connection - to the cellular network for for incoming phone calls to ring through. Push works because the relevant data server(s) maintain an active connection to your iPhone. That's a connection +in addition to+ the voice 'ping'. Push data is only possible if your iPhone is maintaining an active connection to the relevant data server (Yahoo mail, MS Exchange server, etc.; the servers are all set to time out automatically at short intervals). Maintaining an active connection uses power. Period. The interval at which the connection must be refreshed is generally +shorter than the 15 minute minimum Fetch interval+. Thus, Push uses more power than Fetch. Period. End of story. -
My wife preordered a white iPhone 4s for our anniversary and even though it is preloaded with the ios 5, i am a little disappointed. The battery doesn't seem to hold a charge well at all. I have had every other iphone except the 3gs and have never had such a poor battery life. I owned the iPhone 4 for a year, and already know all the tricks to hold on to battery life, I have adopted the habit of closing out any apps that weren't being used, my mail push notifications are set for hourly, wifi and bluetooth are turned off when they aren't needed. I also stay away from any car chargers, use only the apple brand supplied cables, and only charge when the phone is dead. I only would sync when the phone was about to die as well.
When I saw how fast I was burning through the battery, I turned off Siri, which is kind of the purpose of the new iPhone, and turned off the backing up to iCloud. I barely used my phone today and the battery kept ticking down. My wife, who has been stuck with an iPhone 3g for years, has been fascinated with my old iPhone 4 and has been browsing and playing games and her battery has been holding a better charge than my new phone. I even tried turning the phone off for an hour when it was at 18% and when I turned it back on, it was at 15%. My iPhone 2, which is only being used as a touch iPod now, still has better standby time than a brand new iPhone 4s.
To be honest, I am usually a heavy phone user. Throughout the day I will make and receive at least 50 calls, I browse and check websites daily and watch videos sometimes during my downtime. But this weekend, I haven't even had the chance to put this phone through the same abuse my other 3 iPhones have had to endure.
I just want to know if anyone else has this problem, or if I should just return this one.I had major issues with the iPhone 4s battery, however it’s resolved.
The tech who set the phone up at the Apple store did so with little training.
if you have a mobile me account. First go and move all your data to the cloud by going on your computer and logging in at me.com/move. The cloud has replaced mobile me, so there is no need for those two accounts
Also make sure that for any of your email accounts you set them up to fetch, not push. My tech person set them all to have the email servers push data to the phone. The new iphone4s antenna is extremely strong so it will continually try to access stuff that is pushed–***** a lot of battery life doing this. It makes it worse if you have exchange 2010 accounts. Something about changes made to exchange really suck battery life from devices that access such accounts.
turning of locator and the push notifications from facebook--they have a lot! -
Has anyone else found this too
I had major issues with the iPhone 4s battery, however it’s resolved.
The tech who set the phone up at the Apple store did so with little training.
if you have a mobile me account. First go and move all your data to the cloud by going on your computer and logging in at me.com/move. The cloud has replaced mobile me, so there is no need for those two accounts
Also make sure that for any of your email accounts you set them up to fetch, not push. My tech person set them all to have the email servers push data to the phone. The new iphone4s antenna is extremely strong so it will continually try to access stuff that is pushed–***** a lot of battery life doing this. It makes it worse if you have exchange 2010 accounts. Something about changes made to exchange really suck battery life from devices that access such accounts.
turning of locator and the push notifications from facebook--they have a lot! -
Push Notifications and Battery Life
If I have push notifications enabled, but no applications that use push notifications, will my battery still be drained?
You probably won't notice or experience any significant change in battery life with Push access turned off vs leaving it on, but if you aren't using any applications that use push notifications, then turn it off. Not much different if you never use bluetooth. If you never use bluetooth or not very often, it is a good idea to leave bluetooth access off unless you are using it.
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Exchange Outlook Push Not working, Battery life Tanking, iPhone heats up!
I have seen several posts about this, but nothing that has been able to exactly describe my issue. I have a iPhone 3G on the latest firmware, 3.1.2. I was recently able to add my work exchange email to the phone and it worked fine with SSL disabled. At the time, we had not yet set up security on our OWA. Well that lasted about a week, then they decided to enable the security and since then, my push exchange mail with Outlook has not worked. I tried enabling the SSL feature on the phone and still no dice. As a result, my battery only lasts about 3 hours and the phone's physical temperature heats up. Once I delete the exchange account, the tempreceeds and the battery life returns to normal. I ahve been working closely with our IT guy and we can't seem to figure out what is happening and why it won't sync anymore. I get the error, "cannot get mail, the connection to the server failed" but in the setup, the exchange Account is verified. Any ideas?
Hi, I have just run into the same issue. I was using ver 3.00 on my iPhone 3g up until last night when I upgraded to 3.1.2. Since the upgrade where my phone was successfully connecting to our Exchange 2k3 server and recieving push notifications for mail and calendar etc, this has now stopped. The result now being it will only pull mail on request.
As mentioned in the post above, I have noticed the battery life on my phone has deteriorated significantly, to the point it only lasts a few hours, with almost zero usage.
Please help. -
Question about push notifications for apps affect on battery life?
I've noticed that after installing certain "Push Notification Enabled" apps that my iPhone's battery drains very quickly even when said apps aren't running. I've read that if an app makes extensive use of push notifications that it can drain the battery, but I haven't received any notifications from said apps. Does simply having a number of push enabled apps installed drain the battery cause faster than normal battery drain?
I don't really care about the push notifications for many push enabled apps, but I do like to have it enabled for certain ones. Would disabling notifications for all but the apps I use actually save battery life? I would think that since push messages are sent from the app owners server to Apple's push servers to the phone, that disabling notifications on the phone for an app or even deleting the app itself would not prevent the actual data from being pushed to the phone. In other words does disabling notifications (or deleting the app) actually prevent the data from being pushed to the iPhone or does it simply tell the iPhone to ignore the pushed data? The former would not increase battery life while the later would.I've learned that it's not the number of apps that use push notification that drains the battery, but the number of apps that actively use it to send messages.
If push is turned on, the battery will drain slightly faster since the phone needs to maintain a constant 3G (or GSM) connection open, but no data is actually sent or received unless you receive a push notification.
In the case of push email, a push notification triggers the mail app to make an outbound IMAP4 connection. Depending on how often you receive email, this can decrease the battery life. If you receive lots of emails every few minutes, using 15 minute fetch will be more battery efficient. If you receive emails every few hours, push is more efficient.
For apps, it doesn't really matter since the apps can't initiate a network connection unless they are running. I'm not sure if app servers constantly sending push notifications when the notification for those apps is turned off drains the battery any faster or not. From what I've read when push notification are turned off for an app, Apple's push servers will tell that app's servers to not perform a push. In other words, Apple won't push app notifications to the phone for apps where notifications are disabled or the app isn't installed. -
IPhone 3G TERRIBLE battery life when push is ON, great when push is OFF.
Hey all,
So I've set up Nuevasync to keep my Google calendar synced over-the-air with my phone (it uses the exchange protocol so its a Push service).
I've been having absolutely horrible battery life ever since I got this phone but 2.1 made it even WORSE for me.
So I thought I'd try turning everything off to try to isolate what's causing the battery problem.
Solution? I turned off push and set fetch to manual. My phone has been in standby for 9 hours and has played music for 2 hours, and I still have about 90% battery remaining.
Perfect! Except..... why is push eating so much battery? If I turn it on, I can only get about 8 hours standby with a couple hours of usage before it needs a charge.So how does RIM get push to go for days on a BlackBerry???
Push on a blackberry is a totally different animal than Push on an iPhone.
Basically Blackberry push can be thought of as an SMS that goes straight to your mail, addressbook, or calendar, and wakes up that application to do what ever is necessary (like connect and download the mail or whatever). (Its not REALLY an sms, but it works like that. I think Blackberry sends something like 5 bytes to the phone over the regular gsm network.)
They have this patented. And it requires a special network and special servers to support it.
Apple iPhone push uses a Microsoft technique, where the phone opens a TCP/IP connection to a server. If the server has some news for the phone, (calendar or mail) it sends it down that connection. If nothing comes across the wire for 12 minutes (or maybe 15, I forget the details) the connection closes.
Either of these two events trigger the phone to wake up and handle the event.
So the radio can never be totally off, it has to check the status of that connection every few seconds. Thats where your battery goes.
A rational approach would be to just use a special formatted SMS that the phone intercepts, but I think that Apple and Microsoft are worried about stepping on Blackberry's patents. -
Gmail "Push" Service & Battery Life
Hello,
For those of you who are using Google Sync to push gmail what affect are you seeing on battery life?The difference is UNBELIEVABLE!
I used gmail push for a week and my battery died every day after 10-11 hours. I gave up last night and went to fetching every 15-minutes.
My phone has been on for 12-hours today and it's still at 80% (same usage as normal). -
Is it just me or does Exchange with Push enabled drain the battery?
+*I'm pretty sure that this is obvious to all - I just don't see how everyone is just okay with it.+*
The iPhone battery is generally very good; even when using MobileMe with Push enabled, etc.
BUT; once you add a Microsoft Exchange account & leave Push enabled, you could probably watch the battery drain like a sewer right after a heavy rain storm.
Personally, I keep my Exchange on Fetch every 15 minutes and this provides an enormous difference in battery performance.
*_Why is everyone just okay with this?_*
+Just to explain my theory+ - if you watch the background activity using XCODE's Console, it's a pretty dead giveaway. Microsoft Exchange with Push enabled is not really utilizing the true 'push' technology; rather, it's actually checking in and pinging the corporate exchange server every 7-10 seconds. This allows the device to maintain the 'push' image of receiving an email in 'realtime'. But all of this is at the tremendous cost of the battery life. Personally, when I leave my Push on, I need to charge my iPhone 2-3 times daily vs. once every other day with Fetch.
+Comments, anyone?+FireFish wrote:
+*I'm pretty sure that this is obvious to all - I just don't see how everyone is just okay with it.+*
The iPhone battery is generally very good; even when using MobileMe with Push enabled, etc.
BUT; once you add a Microsoft Exchange account & leave Push enabled, you could probably watch the battery drain like a sewer right after a heavy rain storm.
OK, what you are seeing is a problem with your phone, not a general problem with the iPhone or any specific release. Most of the time my phone gets excellent battery life with Exchange Push enabled. Occasionally (a couple of times a year) I suddenly see a heavy battery drain with Push on. I've seen it with every release of iPhone software since Activesync was added. I've concluded that something is broken when this happens. An IT admin in the forum posted about a year ago that he saw many open connections to phones of users when they were reporting this problem. He rebooted the Exchange server and the problem went away for a while. As most of us don't have that option I've found a couple of ways to fix it on the phone. One or more of them has always worked for me.
1. Reset Network Settings on the phone and reboot.
2. Go into Mail,Contacts,Calendar, tap on the Exchange account and turn off all 3 functions. Then reboot, go back and turn them on.
If these don't fix it what I do is go into Settings again and delete the Exchange account. I then reboot and add it back. I then wait several hours for the account to resync (it's best to do this with a WiFi connection). When all of my email, contacts and calendar entries have reappeared I fully charge the phone and test battery life again. This sequence has always worked for me, but I have seen posts from owners who say it did not work. But most say it works. -
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 -
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 -
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. -
The battery life on this phone seems so much greater than the previous two I had.
I've turned off push notifications, checked to close as many programs as possible.
What else can I do to minimize battery use?
Twice this week, it's been on red and once the phone was dead. I usually listed to music on the way to work (30 mins) (I always check to make sure it's off when I arrive) and then I send a few text. I don't use internet at work generally.
I've re-set the phone. I thought I had a lemon phone, but a friend is having similar battery issues.
Any suggestions would be appreciated. Thanks.
Message was edited by: Sean Mhttp://www.apple.com/batteries/iphone.html
This should help. -
Possible work-around for v3.0 short battery life
First: be aware there's a difference between "Push" (which is for some email account types & some MobileMe features) and "Push Notifications" (which is for apps). They are controlled in separate Settings screens.
Short story:
If you've upgraded to v3.0, usually have Wifi ON, and experiencing short battery life, and if you can live without Push Notifications (at least until Apple finds a better solution), TRY TURNING "Push Notifications" OFF.
Alternatively, if you can live without Wifi but need Push Notifications, try turning Wifi off & let the data travel via 3G.
Long story:
First I ran alternate days with Wifi ON, then Wifi OFF, and noticed with Wifi OFF my battery life was nowhere near as short (I could get through a day), but with Wifi ON, I can barely get through half a day. This is very different to v2.21, and in my setup the only significant difference was Push Notifications being ON.
Then today I've been running continuous pings from my Mac to my iPhone, with various combinations of Push on/off, Push Notifications on/off, email accounts on push / fetch / manual, and discovered there's a huge difference in how often Wifi gets turned on when Push Notifications is enabled.
With Push Notifications ON, while your iPhone 3G (and probably 3GS) is asleep, Wifi will be turned on for 15-20seconds every 1 to 2 minutes!
This is in stark contrast to Push Notifications OFF, but Push (for email, MobileMe, etc) ON, where Wifi is on only as often as your email account settings dictate.
This explains a lot, I think. With Wifi OFF, data goes through the 2G/3G radio, which is inherently ON all the time (for phone functionality), so the incremental 'cost' (to battery life) of Push Notifications is comparatively small.
But with Wifi enabled, data is instead sent via Wifi. The incremental cost (to battery life) is dramatically higher having to turn on the Wifi radio, find the WLAN, get an IP from DHCP, then exchange data with various Internet servers, when it happens every couple of minutes!
Though I'm not really sure what Apple can do about this situation. They appear to be turning Wifi on frequently to give the illusion of true (ie timely) push notifications. I think this situation runs parallel to those who found, with v2.x, that enabling Push on email accounts & Wifi enabled had similar major negative impact on battery life. Except now heaps more people want the Push Notification feature. Interesting conundrum...The main thing that helped me with the short battery life was lowering the brightness. My 3G was so bright I could'nt sleep at night.
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