1 2 3 Previous Next 38 Replies Latest reply: Jul 22, 2008 4:18 PM by snoozzinsuz2
Kory King Level 1 Level 1 (5 points)
I didn't see a thread on this yet - but then again I could have missed it in the near endless number of 2.0 problem threads.

anyway - ever since I upgraded to 2.0 my battery life has been horrible! My battery used to last a good day and a half or so, and with the new firmware update I can hardly keep a charge more than a few hours before I start getting the 10% battery life warning. I plug my phone in at the same time every night and have never had any problems with battery, but with 2.0 I plug my phone in at night and it dies on me halfway through the next day! I thought this might be due to usage so I left my phone alone for a few hours with half charge and it was almost dead when I checked back. Anyone else having this problem or have any ideas?

Intel iMac, Mac OS X (10.5.4)
  • 1. Re: battery life with 2.0 update
    Andy Thornton UK Level 1 Level 1 (20 points)
    What's your usage stats like? They're now under 'General' in 'Settings'. I've noticed a substantial increase in 'Usage' compared to 'Standby'. For example, right now I have had about 18 hours of standby, of which, 13 hours have been usage. Now this is interesting since I have been in bed and tiling my bathroom for most of that time, so 'real' usage by me would really be around 2 hours max. The most likely candidates are that you have push enabled and you've received some large email attachments over GPRS/EDGE, and/or you have non-IMAP accounts on auto fetch and received similarly large emails??
  • 2. Re: battery life with 2.0 update
    Pobtastic Level 1 Level 1 (5 points)
    No idea if this makes any difference but I thought maybe it might spark off some sort of recognition of a potential solution... I notice that some apps I've installed are backgrounded rather than exited when you come out of them. I'm thinking that this is why my usage is unnaturally high whilst I've been asleep (and awoke to find my usually 90% charged in the morning iPhone, shut down and out of charge completely...) I noticed especially that the AIM app has an option in settings to sign out when exiting the program, suggesting that it's backgrounded and running whilst you're not using it?

  • 3. Re: battery life with 2.0 update
    Susan Dennis Level 1 Level 1 (30 points)
    Same exact thing with my original iphone as well. I also suspect some of the apps that I've installed-of which I also have AIM. Going to check settings and see if that makes a difference.
  • 4. Re: battery life with 2.0 update
    Charles Milner Level 1 Level 1 (10 points)
    I've noticed this too but I suspect it is the display which used to automatically go to sleep and now doesn't. I can't find an option to change this.
  • 5. Re: battery life with 2.0 update
    swiftcorp Level 1 Level 1 (0 points)
    My battery life has also been a disaster since the 2.0 update, and I am surprised its not been mentioned elsewhere on the forums.

    I wonder if the issue is the Activesync connection. I used it on Sunday with push email, calendar and contacts and got just shy of a day's battery. When I returned to work on Monday, with plenty of emails coming through, by 3pm the battery had drained to 10%. As I was in meetings all day, my phone was at my desk, unused to check mail etc. I did not make a single call the whole day.
  • 6. Re: battery life with 2.0 update
    Charles Milner Level 1 Level 1 (10 points)
    I'd thought about that too but before I upgraded to 2.0 I was using IMAP to check automatically as often as the phone allowed (every 15 mins?) and battery life was never an issue. While ActiveSync is obviously going to be active more regularly surely it wouldn't make that much of a difference.

    I have noticed the screen now seems to have a mind of its own and switch on at random intervals. When the screen is on sleep the battery life seems to return to the levels of the 1.x software.
  • 7. Re: battery life with 2.0 update
    Rich Hall Level 1 Level 1 (50 points)
    After the 2.0 update my phone will no longer take a full charge. Now I am sad and I want to die.
  • 8. Re: battery life with 2.0 update
    swiftcorp Level 1 Level 1 (0 points)
    Yep - I can't get a full charge either. There is def battery issue with 2.0 software on original iphones.
  • 9. Re: battery life with 2.0 update
    Daniel Ray1 Level 1 Level 1 (5 points)
    I've noticed a significant drop in my battery life since upgrading to 2.0 software. I used to be able to charge my iPhone completely in the evening before I go to bed, unplug it and wake up in the morning and the battery meter would still be almost completely full. Since upgrading to 2.0, I do the same exact thing except my battery is almost down to 50% when I wake up. Is one of the unannounced features of 2.0 called "Auto Battery Drain"? What gives Apple? This needs to be fixed, I miss my old battery life.

    I'm still using the same gmail imap account that I did before the update, and still only have it set to check for mail every hour.

    Apple claims that apps can't run in the background, and they quit when you press the home button, so I don't see how any apps installed from the app store would cause this.
  • 10. Re: battery life with 2.0 update
    Matthew Chiavelli Level 1 Level 1 (5 points)
    Same problem here. After the 2.0 update, my phone is getting about 1/2 of the battery life it used to. I took it off the charger around 8am (letting it charge fully overnight) and at 1:30pm the battery gauge is already down around 50%. I can't imagine push email is eating THAT much battery power?

    Hopefully an update will resolve this ASAP.
  • 11. Re: battery life with 2.0 update
    MacDaddy 13 Level 1 Level 1 (0 points)
    I have had the same problem, but was able to make some headway. Maybe this will help others:

    1. I removed any third party apps I had that did remote connections. Even though they should be sandboxed, I just wanted to be sure. This included apps such as BoxOffice, Express, and Remote. The only one I left on was Google remote.

    2. I turned push off and have it fetching from my exchange server every 15 minutes.

    3. I turned my gmail account off, so I only have 1 email account active currently.

    4. I modified my exchange calendar sync to only go 2 weeks back.

    As of today, I have had my phone on for over 5 hours and it is still fully charged like it used to be. I will start adding apps and settings back one at a time. I personally think it is the exchange sync that is doing it, I am really suspicious of the calendar, since others in my office view and modify my calendar. Maybe this modified something and the phone then thinks it has to resync evertytime.

    Anyways, hope it helps.
  • 12. Re: battery life with 2.0 update
    Podcaster Level 2 Level 2 (370 points)
    Try Settings>General>Auto-Lock. You could be set to "Never".
  • 13. Re: battery life with 2.0 update
    Kory King Level 1 Level 1 (5 points)
    my standby is 5h, 38min and my usage is 5h, 24min

    I suppose that might start to explain the problem.

    I do have several mail accounts that auto fetch often. I'll see what making some adjustments to them does to my battery life.

    thanks for your help.
  • 14. Re: battery life with 2.0 update
    Dave_C Level 1 Level 1 (0 points)
    I agree with you. I upgraded my original iPhone, which had excellent battery life, to 2.0 and now by the afternoon I only have 50%. By the time I get home I only have about 20% power left. I've never had a battery problem. In fact I never fell below 50% even on a heavy use day before upgrading. We currently have 3 original iPhones, 2 of which we upgraded. Both the upgraded phones are experiencing tremendous battery drain. We are also having email issues, but I'll post that in another section. The iPhone was fantastic until the update. Any suggestions?
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