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Battery Life Radically Decreased after 2.2.1 Firmware Update

2580 Views 11 Replies Latest reply: Feb 10, 2009 1:28 PM by EricGinGtown RSS
DigitalGuy Calculating status...
Currently Being Moderated
Feb 8, 2009 6:29 PM
Any insight will be appreciated as to why my iPhone 3G (Model: MB048LL) battery life decreased radically after performing the Version 2.2.1 firmware update. I went from 2.2.0 to 2.2.1 during the update. Absolutely no other changes were made.

Prior to the update, I would remove my iPhone 3G from the charger at 7am in the morning and at 6pm that evening the battery would indicate 1/2 of the battery life left.

After the update, I have the exact same routine, but the battery red lines by 4pm in the afternoon.

BTW, I have NOT changed my routine! I go to the same office every day, travel the same route, check stuff on the phone and talk on the phone the same amount each day. (Yes, my life is very routine...) BTW, it's not coincidence. The radical change in battery life was an absolute change from the nite I did the update.
iPhone 3G
  • KyleRed Level 1 Level 1 (0 points)
    all i can say is, join the club....LOTS of people are having this problem. I just did what everyone said to try. Delete facebook and reinstall it. Try deleting your email account and setting it up again. If that doesnt work, try the hard reset (hold top button and home button at same time). Thats about all i have tried. If this isnt fixed in the next week or so im going to apple to raise some ****.
    macbook pro, Mac OS X (10.5.6)
  • es@denver Calculating status...
    huh!!! now im more decided than ever... if it was not nough with the issues i have had.. now this... i though it was just my location... or i thought i left my phone charging without being connected to the electricity power ... but now i know what happen.. i guess im now part of the 2.2.1 club huh... im sure i will have to pay cancell fee soon... if anyone knows any tips to ressolve the battery life issue.... let me know
  • Markie Sharky Calculating status...
    I think it's the mail app in 2.2.1.

    If you would like to test this, disable your email accounts through settings and let me know if your battery lasts longer.
    iMac 1.83Ghz 17" :: MacBook 2.2Ghz 13" :: iPhone G1 8GB, Mac OS X (10.5.6)
  • KyleRed Level 1 Level 1 (0 points)
    the things i said to try above worked for me and actually made the battery even better than it was. right after the upgrade my battery was going down at about 14% every hour. Now i have had it on all day and im still at 87% with wifi and everything on. do what i said above and it should be all good.
    macbook pro, Mac OS X (10.5.6)
  • Fraser Grant Calculating status...
    Yip. I'm now a member of this not-very-exclusive club.
    What a load of pants!
    Macbook Pro 17", Mac OS X (10.5.5), iPod Touch 16GB appletv 160
  • IntoTheWild Calculating status...
    I've had the same issue with a dramatic drop in battery life since upgrading to firmware 2.2.1. I'd estimate that battery life is now much less than a third of what it was before. It began happening immediately after the FW upgrade so I have no doubts that this is what caused the change in performance. I've noticed that the back of the phone is always "warm" now. This tells me that the processor is always cranking away in the background on something even when in standby. I haven't yet figured out what it is. The first thing I'm trying is to turn off the location services.

    I hope Apple releases a fix for this bug soon. Otherwise I'm going to have to reset my phone to the original FW.
  • Dynamite DJs Level 4 Level 4 (1,095 points)
    i haven't had any problems before or after 2.2.1. i have push on , set every 15, play adrenaline pool, use phone, check emails and respond, sms... my battery lasts from 8 am to 5pm. which i think is pretty good compared to the other smartphones i've had.
    PC, Windows XP, IPhone 3G 16Gig 8Gig Ipod Touch 1st. Gen. 2nd. Gen
  • KyleRed Level 1 Level 1 (0 points)
    i do agree that having to work around a new update is ridiculous. They do realize they have a problem and are trying to fix it believe me. I have push, wifi, 3g, everything on now and it all seems to be working fine with battery doing ALOT better. did you try doing what i said above? I also have MemStatus app (search memory status in app store, its 99 cents and that clears the phones memory tons more than some of the other apps), so that apps aren't running in the background. that will also help. hope this helps some people.
    macbook pro, Mac OS X (10.5.6)
  • iphoneking Calculating status...
    Hi Dynamite. I agree 100% with you. I also have PUSH on all the time, WiFi on all the time, Location On, BlueTooth on, music around 02 hours a day, lots and lots of mails (in/out), etc; and my Battery goes fron 07:00am up to 09:00 pm and still have 50% left at the end of the day. If I leave the screen on all the time, it will last up to 05:00pm with 10% left.So the big difference for me is Screen on or Screen off.
    HP pavilion, Windows Vista, iPhone 3g Black, 16 GB with OS 2.2.1
  • EricGinGtown Calculating status...
    I had the same problem and after calling tech support, I have a solution that worked for me. I was experiencing greatly reduced battery life for 2 days after the 2.2.1 update (about 6 hours with little to no use) I have wi-fi, 3G and Push for my .me account. I also have an exchange email (push), aol email, imap email and 2 gmail addresses so I really didn't want to delete and re-install all of these email addresses like the previous poster recommended so I called tech support first.

    On to the fix...

    The tech support person had me reset my network settings by going to:
    Settings>General>Reset>Reset Network Settings
    (make sure you have all of your wi-fi passwords because you have to re-enter them once you do this reset)

    I did this yesterday afternoon and when I got home I put it on the charger overnight. I woke up this morning at 7am and I still have 3/4 battery left now at 5pm.

    Hope this helps!
    MacBook, Mac OS X (10.5.6)


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