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iPhone 4s Battery Life?

My iPhone 4s battery seems terrible! Almost equivalent to my 3GS and it's terrible battery life. When I got my iPhone yesterday and restored from backup I noticed nothing really changed with minimal usage and standby! Is this normal or should I consider setting it up as a new phone because maybe something is running in the background that's causing it to drop a percentage every few minutes under light usage? Input would be great!

Posted on Oct 15, 2011 7:14 AM

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12,787 replies

Oct 17, 2011 12:48 PM in response to Scarface.

I posted earlier and I had the same issues. I went from 100% at 7am to 18% at 6pm with very little use.


Since then I made a lot of changes to the phone.


I turned off reporting to Apple/Diagnostics, I turned off everything in iCloud and reset and readded the items. I turned off unused calendars and email items. I don't use Fetch, but I turned that off as well. I turned off Pinging. I removed items from the new Notifications Board that I am not wanting to use anyway. I used battery magic to do a full recondition charge of the battery.


I started using the phone at 7am today for various stuff, and it is now 1pm 6-hours later and I went from 100% this morning and now am at 96%.


I don't think it is a hardware or iOS direct issue, but a configuration issue.

Oct 17, 2011 1:18 PM in response to Scarface.

Update after 2 hours, 15 minutes.


After the first hour my phone was at 100%, no mail/calendars/notifications (other than text messages).


I did receive 3 text messages during that time.


I then configured Apple Mail and First Class mail and setup notifications for the latter (and I get probably 15-30 messages/hour during work). I'm at 94% right now. Next step is to setup all my calendars and address book shares to connect to our SLS 10.6x iCal and Address Book servers.

Oct 17, 2011 3:27 PM in response to Scarface.

I called up Apple and they said they would be willing to send me a new phone. I explained that my buddy and I each got the 4s this past Friday and his battery life is amazing compared to mine ( the only difference is he has sprint). He suggested I call a local Verizon store to see if they had any iphones available (they didn't). I would have to wait 5 days for a new phone to arrive from Apple (which would leave me without a phone) and I'm not close to an apple store. I just wish Apple would make a public statement about this and get the ball rolling on a fix.

Oct 17, 2011 3:30 PM in response to Scarface.

Hi everyone, I had the exact same problem, and following the below steps has solved my problems. My 4S battery life is now amazing (i.e. in my case, the email account was the issues). Here is a quick list of things to try:


  • Reset Network Settings: Tap on “Settings” > Reset > Reset Network Settings
  • Disable Bluetooth: Settings > General > Bluetooth > “OFF”
  • Disable unwated Notifications & apps: Settings > Notifications > Turn OFF for anything you don’t need
  • Disable Location Service: Settings > Location Services > Disable selectively for services you don’t use
  • Disable Timezone Adjustment: Tap on “Settings” > “Location Services” > ‘System Services’ > Setting Time Zone to OFF
  • Disable Ping: Settings > General > Restrictions > Enable Restrictions > Ping > OFF
  • Disable Diagnostic & Usage Reports: Tap on “Settings” > General > About > Diagnostic & Usage > Don’t Send
  • Disable Email accounts by heading to Settings > Mail, Contacts, Calendars > Account Name > Delete Account. Once done, reset network settings (the first tip up there) then reboot your device and re-add your accounts back from Settings > Mail, Contacts, Calendars > Add Account.

Oct 17, 2011 4:44 PM in response to tonypich

Well I figured it out (at least for me). After wiping the phone out and doing a factory restore, things were doing great until I added my calendars. I subscribe to 5 of them all hosted on our Snow Leopard Server running iCal (and AddressBook) services.


After I added the 5 calendars and set them to retrieve at 15 minutes (same interval as my iPhone4), I started losing power like crazy - 30% in 90 minutes.

Oct 17, 2011 5:45 PM in response to JonGoldman

@ Jon.... that is wrong. You shouldn't experience poor battery performance just because you're refreshing calendars. Especially if your previous iPhone didn't do this. I think we need to hear from Apple on this situation. They need to issue a statement and let us know what's being done to correct this. I didn't even make it 6 hours through the day before mine died. Using WiFi and talked 27 minutes on the phone.


APPLE can you hear us?

Oct 17, 2011 6:01 PM in response to KimoChristy

That would be great. I think Apple is working on a possible solution. It seams that every major iOS release battery is an issue among users. I might get 5 hours today, and I think my problem is reminders working on location, it might be better to set reminders to use time/date instead. Although lots of app can use notification as well, I changed some of my setting, will see tomorrow test. Today is pretty poor.

Oct 17, 2011 7:01 PM in response to Scarface.

Ok! A reply from the Topic creator and I think I might have found a nice solution! I became fed up and backed up all my stuff and then initiated a full restore and when it was all said and complete, I then backed up from a backup previously to the restore and so far after 10 minutes of light use, I'm still at the same percent I was at when I unplugged from the backup restore. I have to say this is a HUGE improvement in battery performance then what I was experiencing and recommend anyone with light use and poor battery performance to try this out. Note: I have pretty much everything running, suri, emails, location services etc. I'll start to experiment with heavy use now and let you guys know the results.

iPhone 4s Battery Life?

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