Optimizing iPhone battery life: Between charges and before replacement
FYI. An excellent iPhone battery care article by iPhoneAtlas.com:
Optimizing iPhone battery life: Between charges and before replacement
http://www.iphoneatlas.com/2007/07/09/optimizing-iphone-battery-life-between-cha rges-and-before-replacement/
OK, I agree that is a completely false statement. The rest of the article is pretty good.
If you assume a linear decrease in battery charge for each full cycle (which it really isn't, but much easier to model in a spreadsheet). Then 80% of original charge after 400 full cycles is approximately 0.8% loss in battery charge per full charge cycle (again this is a simplification, stay with me). This means that after 400 cycles, you are at approximately 80% of your original total charge level. As stated by Apple.
So, extrapolating that out to EOL (end of life) which Apple assumes to be 50% battery charge, it would take approximately 1,000 full charge cycles for your battery to be EOL (according to Apple). It would actually be slightly less than that since it won't be a linear function.
For me, that's 2 to 4 years of use depending on whether or not I continue using the iPhone as much as I have this first full week.
Similar Messages
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The battery life between charges on my iPad has plummeted to about 2 hours. The guy at the genius bar said the charge should last about 10 hours and suggested it might be an app (unfortunately I didn't have the device with me and the nearest Apple Store to me is 2 hours away). Does anyone know of apps that cause heavy drains on power? It also does not charge when it is plugged into my MacBook while I am using the iPad but it does when I am not using the iPad. I mostly use the iPad to read e-mails, play Team Lava games, read books through iBooks or Kobo and the ABC Player. Any thoughts would be greatly appreciated! Thanks!
Restore is about the only option left, short reinstalling the whole thing as new.
Before you restore, go to I tunes and turn off automatic sync. Then plug the machine in. Upload any photos that you have taken with the pad into I photos, or where ever you keep your pictures. Then, in I tunes, transfer any purchases.
If any apps or purchased music get lost in the process, you can download them again for free.
You do not want to make a backup of what you have on the pad now. If you do, when you restore, you will simply recreate the same problem.
What you want to do is restore from a prior backup. Do that.
Then run the system status app and see what the CPU numbers look like. If they are ok, then you can start to re add apps until the problem shows up.
If this does not do it, then the last step is to set the pad up as new. Check the numbers, then add the apps and settings back one by one. While it is likely to be an app, it may be a setting somewhere. -
I am very disappointed with the battery life I am getting out of my Iphone 5S 64G. I charge it every night, and would be lucky to make 15 to 20 minutes of calls during the day and yet I am lucky to get much more than 12 hours of life out of the battery.
I have to make a conscious decision not to use it to avoid it running out on me. I had it back to the Apple Store last week and they ran diagnostic checks on ot and said that the hardware was within specs.
They replaced the software as it was showing that Springboard had crashed on several occasions. The other problem I was complaining about was that at least 2 or 3 times a day, the phone would refuse to wake up when I hit the home button. It would take sometimes up to a minute of pressing the button before anything would light up. The guy at the Apple store said that this was caused by Springboard crashing and that this would also be what is reducing the battery life.
I did notice that after they replaced the software, the waking up problem appeared fixed for a few days, but the battery life had not improved. Now the waking up problem is starting to return.
It is very annoying and somewhat embarrassing when you are with a client and go to make a call and your shiny flashy new Iphone 5 won't even light up. Especially when you have to borrow your clients Nokia....My best bet would be to restore the phone. Back it up to itunes, and then reset it Factory settings. This way, any corrupt software will be removed, and you can start fresh. Make sure you back it up first. By the sounds of it, you are using the phone for business and probably need the data from it. Hope this helps!
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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 -
Is there a way that i can downgrade my iOS 7.1 on my iPhone 4 to iOS 6xx? battery life not good, and performance isn't better than iOS 6.. Please apple i am really disappointed with iOS 7 on my iPhone 4, it can runs great on iPhone above 4 such as 5/5s/etc.. iPhone 4 just good with iOS 6...
No.
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On my iPhone 5, the battery symbol and percentage won't change, even while charging or during usage throughout the day. The battery is however charging and draining properly from what I can tell.
Has anyone had this issue or know of a fix?
ThanksTry this
Restart iPhone: Hold down the Sleep/Wake button and the home button together until the apple logo appears (ignore the ON/OFF slider) then let both buttons go and wait for phone to restart (no data will be lost).
Using the phone while charging doesn't create a problem.. I do it all the time -
My iphone 4 will not charge and the battery is dead how do i fix this?
My iphone 4 will not charge and the battery is dead how do i fix this?
If it's still under warranty, Apple will fix it, but you have to send it to them, so you won't have it for several weeks. If the warranty is expired, they'll still do it, but you'll have to pay for it. Last I heard, it costs $99/S&H.
That is the ultimate defect in the iPhone. No other cellphone has a battery that is not user-replaceable. I won't buy a phone that doesn't. -
My iPhone 4 will not charge and is now dead.
My iPhone 4 will not charge and is now dead. I updated the software about 2 weeks ago but since the phone is dead I can find out which version I have. It started giving me the prompt "this accessory does not support charging this device". I tried charging in my car, two separate wall chargers and on my MacBook Pro. Have never had a problem charging it before. When I would try to charge it, I would get a green battery icon with a plug in it, indicating the battery was fully charged. I now have it plugged into a wall charger, it shows the lighting bolt and nearly drained battery but the phone will not turn on. Any ideas?
Hi,
You probably need to do this...
DFU Mode / Unable to Update or Restore
http://support.apple.com/kb/HT1808
But Try Here First
Frozen or unresponsive iPhone
From Here:
http://www.apple.com/support/iphone/basics/ -
Hi, I have done this with IOS 5 through 6 and it works.
I have done this serveral times with my phone, as battery life decreases. I have not figured out what is the original cause of my battery problems, but every now and again, something starts to dain my battery at a rappid rate, in an hour or two. This is the fix to reset it.
1 - Back up you phone to iTunes
2 - Go into the settings under General and at the bottom sellect Reset and reset your iPhone erassing all data.
3 - Once it resets and shows you the default "out of the box" screan, power it off
4 - Recharge it FULLY.... I leave it over night.
5 - Power it on again
6 - Restore your settings via iTunes.
7 - Your done
In my experiance, if you skip any of the steps, like not powering off when your recharge or not recharging fully, will result in it still draining quickly.
Hope this works for you.Thanks JJT2122 !
I added your fix to the list of available fixes that improve iPhone battery life
A better iPhone 4s battery life -
anyone can help me...my iphone 4s is not charging and the charging icon remain 1%...and there is a time it will come on and i will try to reset the settings but the problem it doesn't turn on once it dead.And i went to the apple store today and they said the charger connector or the charging port has been bent..they want me to pay 199 plus tax for another phone.Since i have this iphone 4s for 1 year and 2 months so it is very frustrating for me...So i decided not to buy another iphone..If i want to get another one not with apple anymore.So,when i got home,my wife try to make a research on the computer try to troubleshoot on our own because i cannot believe what the Apple manager told us "THE CHARGING COONECTOR HAS BEEN DAMAGED MAYBE BECAUSE i FORCED TO CHARGE EVEN IT DOESN'T FIT" it is a big insult for me because this is not my first phone..So my wife word hard for it and she keep on pressing the power button every 15 minutes..(10-15 seconds and it come on).And again i try to reset again its dead..I cannot turn back on....any advise?looks like apple wants only money and they are not trying there best to help there customer problem.
My question is if the port is damaged,How come the charge sign come ff when i charge...but if there is a chance that the apple logo come on the icon of the battery never change still 1% but it will last for a day..doing phone calls and everything?Please help!
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After installing the new IOS my iphone 4s won't charge and less I restart it. Why is appl this happening? and What is apple doing about this?
The iPhone has a hardware problem - with the battery or something else.
The iPhone includes a one year warranty. If purchased new in October of 2012, it remains under warranty. Call AppleCare or make an appointment at an Apple Store if there is one nearby. -
U350. Literally overnight...Battery won't charge and wireless quits working.
I've had my Ideapad U350 since June of 2010 and had absolutely zero problems with it until now.
Up til now, I haven't been experiencing shortened battery life or internet problems...now, out of the blue, the battery doesn't charge and the wireless won't come on.
I keep my system up to date and my anti-virus current.
When plugged in, the computer turns on. The battery light beneath the keyboard flashes orange constantly. Mousing over the battery icon on the taskbar, the popup indicates that the system is plugged in. The battery is at 0% and not charging.
The light for the wireless does not come on at all regardless of the position of the switch on the side or any software settings that I've tinkered with.
I've gone to network connections and right-clicked the wireless...disabled it, re-enabled it...tried to diagnose the problem, windows just says that the card needs to be turned on.
I've un-installed and re-installed the device drivers from the device manager, no go.
On a whim, I backed up all of my data and used the one-touch system restore to go back to factory settings. No dice.
Solved!
Go to Solution.I've got the wireless up and running.
At some point in the past, I had disabled the Lenovo software that put that annoying display in the lower right corner every time you adjusted brightness or volume or what not...
Having just reset my computer to factory settins (which confuses me as to why it wouldn't just WORK...it worked when I got it..) the software is once again up and running and I noticed that every time I flipped the switch on the side, the indicator would pop up in the lower right corner of my screen for wireless on/off...but the light near the touchpad still wasn't coming on.
So I hit fucntion F5. The Lenovo Wireless Device settings popped up and I turned it on from there. Voila.
Ok, one problem down.
Battery is still an issue.
I Disabled the ACPI-Colmpiant Control Method as instructed on the other thread, let the computer reboot...re-enabled it. Nothing.
Tried another reboot. Disabled, waited a few minutes. Re-enabled.
When I mouse over the icon on the corner it still says the battery is at 0% and the computer is plugged in but not charging.
I've read a number of complaints about the batteries failing around the 1 year mark in these laptops...but this one was showing NO signs of trouble until it all of a sudden quit charging and it's only been used for about 7 months..and even then, not heavily used.
Any other ideas? -
MBP keeps switching between charged and charging
After updating to 10.5.6 my MBP has started switching between charged and charging once the charge reaches about 96%. I've tried resetting the SMC but hasn't helped. I'm trying to calibrate the battery now but it is a very slow process since charging the last 4% seems to take forever.
Is anyone else experiencing anything like this?Does trickle charging really switch between charged and charging at one second intervals?
The 10.5.6 changes to the battery menu must have been more than removing from menu options then because I had to turn off the text the continuous switching between charged and charging became too visually distracting. -
Maximizing iPhone Battery Life
Regard maximizing iPhone Battery Life, just for my curiosity and knowledge, from a software or hardware standpoint why when we use the iPhone to access data, a Wi-Fi connection uses less power than a cellular network — so keep Wi-Fi on at all times.
Thank YouYour problem is the same for thousands after iOS update, but Apple does not manifest itself with respect to a possible fix.
My battery works only 2 hours of use.
And detail: with ALL the possible functions of the disabled device.
=/ -
Is it any differences in battery life between the different processors (MBPr late 2013)?
Is it any differences in battery life between the 2,4GHz i5, the 2,6GHz i5 and the 2,8GHz i7?
I'm planing on buying a macbook pro 13" but I'm a little bit uncertain which processor I should chose. I want as much power as possibly but if it's any significent battery diffrences, then I would chose battery over power. I've read that there is about 45 min diffrence between the 2,3GHz and the 2,6GHz in the 15".I imagine that there are but since Apple makes no such distinctions, I suspect that the differences are not that great. I have not seen any reports or studies to that effect.
If battery life is of paramount importance to you, consider a Macbook Air. The advertised battery run times are significantly longer than the Macbook Pro.
Ciao.
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