1. zkyevolved's Avatar
    Hi. I'm on the iPhone 4 and I was getting really good battery life before. I upgraded and now when I could get 1 hour and 15 minutes of use from 10% battery life on 2g now I get 40 minutes per 10% and my usage hasn't changed.

    Any ideas? :$

    Thanks guys!
    11-26-2010 05:09 AM
  2. SeanHRCC's Avatar
    I still havent noticed any sizable battery difference...but ive read so many threads across the web about this same issue. I know it sounds like a stretch, but is there a possibility that given the updates are optimized for 3G, that 2G usage is finally seeing a lesser power consumption advantage?

    I dunno, it seems like my battery life has stayed around the same or just "slightly" (and i mean VERY slightly) less.
    11-26-2010 06:38 AM
  3. hopper's Avatar
    My battery life actually seems better and I keep all the radios (3g/bluetooth/wifi) on. Check your notifications and push apps....

    I still havent noticed any sizable battery difference...but ive read so many threads across the web about this same issue. I know it sounds like a stretch, but is there a possibility that given the updates are optimized for 3G, that 2G usage is finally seeing a lesser power consumption advantage?

    I dunno, it seems like my battery life has stayed around the same or just "slightly" (and i mean VERY slightly) less.
    11-26-2010 08:56 AM
  4. zkyevolved's Avatar
    Update: I took off my mobile me account and uninstalled that app to fi d my iPhone and now I'm getting great battery life. Actually better than 4.1. great
    11-26-2010 01:47 PM
  5. ghostface147's Avatar
    Now that's interesting.
    11-26-2010 03:11 PM
  6. NVMY03ION's Avatar
    Mine is noticeable different. I took my phone off charge at 5:00 AM its not 3:30 PM and Im down to 24%

    I have on Wifi and 3G and Bluetooth
    I've checked Facebook and twitter today and I've made 4 phone calls each of maybe 5 mins a piece. and Ive been TXTing. 24% is bad!
    11-26-2010 03:26 PM
  7. sting7k's Avatar
    I posted a week ago about my bad battery life with 4.1 and it possibly being wifi related. It's vastly improved with 4.2 now. I also turned on find my iPhone and it seems better than it was with 4.1.
    11-26-2010 03:40 PM
  8. zkyevolved's Avatar
    I posted a week ago about my bad battery life with 4.1 and it possibly being wifi related. It's vastly improved with 4.2 now. I also turned on find my iPhone and it seems better than it was with 4.1.
    That's funny how mine is the complete opposite. I couldn't be happier now with battery life.



    That's my usage.
    11-27-2010 11:10 AM
  9. zkyevolved's Avatar
    Wow....
    11-27-2010 05:45 PM
  10. BryanTheRed's Avatar
    I was having problems after the update as well. After deleting my Mobile Me account and adding it back along with adding my gmail and hotmail accounts which were previously forwarded to just the MobileMe account. My battery life is normal now.
    11-27-2010 05:54 PM
  11. EmceeGeek's Avatar
    Wow....
    nice. are you a heavy user though?
    12-01-2010 08:36 PM
  12. jsntrenkler's Avatar
    My battery life appears to be a tad bit better, however I have noticed a couple small slow downs here and there with the new OS.
    12-02-2010 12:39 PM
  13. l0peter0l's Avatar
    that's interesting.
    12-02-2010 01:17 PM
  14. four4usc's Avatar
    After removing "find my phone app" and deleting the mobile me account, my battery life has really improved. With moderate use I have 68% after 12 hours removed from the charger.
    12-02-2010 06:41 PM
  15. darklords's Avatar
    Have you check out your battery with other Apps too?
    12-03-2010 07:15 AM
  16. SockRolid's Avatar
    I posted a week ago about my bad battery life with 4.1 and it possibly being wifi related. It's vastly improved with 4.2 now. I also turned on find my iPhone and it seems better than it was with 4.1.
    FWIW, I'm sure my iPhone 4's battery life is better since upgrading to 4.2.1. No empirical data, but it seems to require charging less often...
    12-03-2010 02:53 PM
  17. ghostface147's Avatar
    Upon further review, I have noticed decreased battery life. In the morning I stream our local radio station and on 4.1, the battery would drain to about 81% over an hour and 15 minutes or so. Now with 4.2.1, the same amount of time goes down to about 77%. 4% is a significant drop if you ask me.
    12-03-2010 05:07 PM
  18. howtieatie's Avatar
    well ok great
    _______________-
    How To Tie a Tie
    Tie a Tie
    Last edited by howtieatie; 12-04-2010 at 03:55 AM.
    12-04-2010 03:52 AM
  19. MacLup's Avatar
    Interesting info about Find my iPhone feature. I disabled mine too. Most options that require GPS/location service can easily drain battery life.
    12-07-2010 04:14 PM
  20. xxDruMMer BoYxx's Avatar
    Or it might just be you all aren't charging as much because ur using more? Lol.
    12-07-2010 04:19 PM
  21. fantasyfreakbasketball's Avatar
    Battery life in 4.2.1 is worse than 4.1
    12-07-2010 06:39 PM
  22. Ipheuria's Avatar
    Doesn't findmyiphone keep tabs on your phone by using location services? So depending on how often it polls I can see it draining the battery. I found that 4.2 usage is really weird. When I first got it battery life was great a 10% increase over 4.1 but it actually seem to fluctuate even though the usage stays the same. I find that some days I get home at 6PM in the 60s when usually I'm in the 80s. I find it really peculiar, on my iPad though it's a trooper like always.
    12-07-2010 11:37 PM
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