Always charged iphone 5 battery to full..can or can't?

Is it harmful for my iphone battery if i always charged it to full everytime it's percentage is reducing? for example, in a day, i'm fully charged and plugged it out and used it for sometimes untl 89% then i plug it back to let it full to 100%. then unplugged use it for a while, and then charged it back to make it 100% again. The reason why is because sometimes maybe I will go out for some business and i need to get my iphone fully charged because i don't have any power bank. So is it harmful if I'm keeping doing that? And is it harmful too if i let it plugged for a some time even the battery was fully charged? thanks for your feedback guys

Hi Friend,
I usually recharge the battery until reach 80 to 90%. If you always full recharge the battery, the battery will drain quite fast.
Make a full recharge just once a month (says IOS 6 User's Guide).
My battery life is over 15 hors with a single charge. In stand by (without make calls, text messages, games or something else), I already presented up 30 hours a single charge!
But you can buy a external recharger. So when you need to recharge your device you just need plug in in the external recharger
Hope it will be helpful

Similar Messages

  • I CANT CHARGE IPHONE 4 BATTERY, RANDOMLY RESET

    I can't charge iphone 4. plug to charge cable. iphone turns itself off 1-2 minutes after. charge level is not work. got error message "CRC Err"
    Pls help me.

    Sounds like a dying battery.  Bring your phone to Apple for evaluation

  • HT204382 when battery is full can i put continuos charge

         please suggest me  after battery charge 100% can I keep charging continuously is it right or not,why because I am using system more then 16 hours.

    Yes, it has built in over charge protection as do all Apple devices with batteries.  You cannot over charge an Apple device.

  • Unable to charge iphone 3G Battery after upgrade to OS4.1

    Hi ,
    I 'm unable to charge my iphone 3G after upgrade to os 4.1 , also i noticed that the network signal to weaker after the upgrade .
    any idea how to fix this or how to downgrade my iphone back to the previous version.
    Regards
    Hussein

    No, not yet - thought that there may be another solution than a reset with a consecutive restore. But if his is the only possible solution I will try...

  • PowerBook enters sleep mode with charger on and with new battery in Full

    Hi all,
    My powerbook enters in Sleep mode when it has a lot of energy. I have the powerbook with the charge on and battery in full charge and it still goes to sleep mode. It happens even when I'am working a lot with the computer. It appears that when a left my computer go to sleep over night the next day e goes a lot to sleep even when I'am working with the computer. I have tried to use just the charger, and just de battery but the error continues. I havemy power setting and it is e best performance (and it never goes to sleep in this mode).
    I can only avoid this if I never put the computer to sleep, because I i put it i will start putting it self to sleep.
    I have bought a new battery (7 months) and a new charger (2 month) recently, could be this the case?
    What is happening to my computer?
    It is my computer to ald and tired and needs to sleep a lot :/ ?
    Thanks for any help!

    The date only goes to 1970-01-01 if e click in power on without the battery and the AC adapter.
    If I remove the battery and unplug the AC adapter e wait many minutes and put back on the battery and the AC adapter a switch the power back on the date staid the same.
    I have notice one other think, some times the new battery that a bought in apple store does not charge (a have to remove the AC adapter a plug back in for it to charge), the AC adapter is correctly plug-in but it does not charge. I am begging to suspect that it is something wrong the the hardware (or the battery or the charger) sell by apple store.
    Is the any place for replace bad hardware still in warranty in apple store?
    What is the place to contact apple suport for this matters?
    Thanks!

  • HT1688 My iPhone 4s battery got drained while playing games, and now it won't open even if im charging. what can i do?.

    My phone's battery got drained while playing games and now it wont open if i connect it to my charger,?.what can i do? my phone was given to me as a gift from the a relative in the US and im from the Philippines. How can i fix it? Do i need to bring it to any apple center to have it replaced? or is there a quick fix to this problem?...

    Keep iPhone on Wall Charger for 10 minutes, it may turn ON itself. If still OFF, keep on Wall Charger and Reset, hold both Home and Power buttons until the iPhone begins to start, this can sometimes take about 20 seconds time of holding both buttons while on charger.

  • My iphone 4 says it's charging but it's out of battery and i can't turn it on or off

    my iphone 4 says it's charging but it's out of battery and i can't turn it on or off

    It sounds like you have restrictions turned on on the device.  Settings>General>Restrictions.

  • Is there any problem for my iphone's battery to keep my charger connecting for few hours after the battery is full?

    s there any problem for my iphone's battery to keep my charger connecting for few hours after the battery is full?
    Sometimes i sleep and the my iphone is charging and of course the battery became full after two or three hours, and definitely i will not wake up in the midnight to just disconnect the charger, please i need your help.

    This is considered normal use. I think everybody does this, including myself. It's not something to worry about in the least bit.
    Just remember to complete a full charge cycle (allow the phone's battery to discharge to 10%-20%, then charge uninterruped to 100%) once a month and you'll be fine.
    http://www.apple.com/batteries/iphone.html

  • Should I disconnect the charger once the battery is 100% full. Or can I use the laptop plugged even when the battery is full., Should I disconnect the charger once the battery is 100% full. Or can I use the laptop plugged even when the battery is full.

    Should I disconnect the charger once the battery is 100% full. Or can I use the laptop plugged even when the battery is full., Should I disconnect the charger once the battery is 100% full. Or can I use the laptop plugged even when the battery is full.

    You can leave the charger plugged in, as you cannot overcharge...charging automatically stops when your battery is full. Once every 2 ~ 3 months, its a good idea to drain the battery to about ~ 40%, then recharge to full. Otherwise, you can charge whenever you like & leave connected whenever you like.
    Try to avoid full battery discharges, Lithium batteries don't like that & frequent full discharge/recharge cycles will eventually kill your battery.

  • I have an iphone 5c and I left the office to reach 0 percent and now when I put it in charge of a battery icon appears red and under a usb cable and will not turn... what can I do?

    I have an iphone 5c and I left the office to reach 0 percent and now when I put it in charge of a battery icon appears red and under a usb cable and will not turn ... what can I do ?

    Read this
    If you can't update or restore your iPhone, iPad, or iPod touch - Apple Support
    and ensure you plug it into a wall socket to recharge

  • Charging iphone 4s to 80 percent per charge can prevent battery degration

    I have this sony viao laptop that has this viao care control center under power management that controls the charge only to 80% can actually prevent battery degration..I wonder if it is also applicable to Iphone 4s?..

    You can charge it to 100% without any worry or problems.  The iPhone charging circuitry will regulate the charging current to a level which is safe and satisfactory for it's needs, and then will regulate the charging current to a mere trickle when it approaches 100%, so it will not over-charge.

  • Hello there, i have a major issue with my iphone 3g, it ran out of battery yesterday and now it won't charge or turn on at all, can anyone help??

    hello there, i have a major issue with my iphone 3g, it ran out of battery yesterday and now it won't charge or turn on at all, can anyone help??

    Apple Does Not recommend that. Please Read.
    http://support.apple.com/kb/HT1490
    From that article
    "Portables with built-in batteries"
    Current Apple portable computer batteries are pre-calibrated and do not require the calibration procedure outlined in this article. These computers use batteries that should be replaced only by an Apple Authorized Service Provider.
    MacBook 
    MacBook (13-inch, Late 2009) and later
    MacBook Air
    MacBook Air (all models)
    MacBook Pro
    MacBook Pro with Retina display (all models)
    MacBook Pro (13-inch, Mid 2009) and later
    MacBook Pro (15-inch, Mid 2009) and later
    MacBook Pro (17-inch, Early 2009) and later
    Thanks.
    Allan Mac wrote:
    Apple recommend calibrating the battery when you buy a new Macbook and then every few months, or monthly if it used on mains all the time. This, as Apple says is to keep the battery operating at maximum efficiency. When the battery discharges and shuts the macbook down, it still has reserve power for a good number of hours. There is also a logic board battery to hold various settings.
    I rather think I will take Apples advice on using their equipment not yours, but I would be intrigued to discover what is it you know that Apple doesnt about its batteries?
    Allan

  • My iphone has switched off and i can't get it to come back on, battery is full, any ideas

    My iphone 4 has gone off and won't come back on, the battery was full but don't want to restore if i don't need to.
    any ideas
    L

    Try resetting the phone:  Press both the home and sleep/wake buttons until the Apple logo appears (~10 - 15 seconds)>

  • 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

  • HT201401 My iPhone3GS has started crashing. I'll be mid-phone call, or using an app, when the screen will go dark. I have to restart it. Then it shows low battery sign (even though it was 100%). Within 1 minute of charging, iphone starts. Pl. resolve.

    My iPhone3GS has started crashing. I'll be mid-phone call, or using an app, when the screen will go dark. I'll have to do a restart. It dumps to the warning screen that there's no power and needs to be plugged in.
    Once I connect the phone to a power source, in a couple of minutes it's ready to roll again, and displaying a "full battery" icon.
    The phone is almost always fully charged when this happens, and I don't get a crash when the phone is plugged into a power source.
    Took my iphone to apple store, they informed that battery is very good and there is no need for replacement. Might be there is a problem with iphone motherboard. But they can't repair it as my 3GS crossed warranty.
    Where should I go to repair this. Within 2 years...this 32GB 3GS is almost garbage for me with no support from apple. I am ready to send it to apple for repairs and pay the repair charges.
    I tried everything... deep reset ... factory settings .... nothing is working... Apple staff pl. take care of your customers ...

    This is a User to User Forum... You are Not Addressing Apple here...
    iPhone User Guide
    The Basic Troubleshooting Steps are:
    Restart... Reset... Restore from Backup...  Restore as New...
    Restart / Reset
    http://support.apple.com/kb/ht1430
    Backing up, Updating and Restoring
    http://support.apple.com/kb/HT1414

Maybe you are looking for