3266 Views 13 Replies Latest reply: Jun 11, 2009 2:52 AM by tahoegirl93
Check to make sure your locations services is off. That happened to me recently, all of a sudden my batt started draining like crazy. Apparently when I went to use an app (not sure which, maybe the camera app from the app store) it must have turned on, or I inadvertantly turned it on and forgot about it.
Turned it back off and my batt is norm again.
Hope that resolves it
For general battery life tips take a look at this article: http://www.apple.com/batteries/iphone.html
If you suspect a third-party application is draining your battery there isn't much you can do to narrow it down beyond installing apps one-by-one and observing performance.
You should make sure you are running the latest version of iPhone OS (currently 2.2.1). Also, make sure that all of your applications are fully updated.
Restoring you phone resolves lots of issues, including battery life. If none of the above resolves your issues try that.
Enjoy your morning,
Thanks for the responses. I've already tried all of the suggestions including restoring. All of my apps are fully up to date, and since I haven't added any new apps for a while I suspects that one of the updates may actually be the issue. I sure wish better diagnostic tools were available.
So it looks my most likely option at this point is to do "restore as new phone" which will collaterally wipe out data that some apps don't allow off-phone backups of. I'd be curious to see if others are having the same problem since the guy I spoke to at the Genius Bar said he has been having the same problem and it started at around the same time.
As I mentioned before, I already have location services off. Turning off auto-brightness won't do much since I usually have the screen turned off anyway. Turning off 3G is not an option. I'm in Japan so No 3G means no networks and no calls. It's not a matter of good energy management habits, this is a drastic change in performance that started 2 weeks ago after 8 months of no problems.
I'm having the exact same issue. 8 months with my 3G. No problems with battery life until a few days ago when it started draining like crazy even when it's in "sleep mode".
I did the complete discharge-charge thing and that solved the issue for like 2 days. I just turned off locations and we'll see if that helps.
I did go into Settings > General and it says my Usage (not Standby but USAGE) is for 3.15 hours today which is crazy since I'm at work and have only been on it to check email and facebook for about 20 minutes total.
I finally ferreted out the offending application. It's Evernote.
The last time the desktop version was updated it must have set the default synching to "automatic". After I set synching to "manual" my battery life is back to it's usual levels. There was nothing that I could have changed from the iPhone side, the setting was on the desktop version. Before last night, I wasn't even aware that the app had user controllable synch settings.
I sure wish there was a way from the iPhone side to identify which apps are are synching even if they aren't set to do so by any of the iPhone settings. Some kind of record of the sync log (with synching apps identified) could have saved a lot of trial and error.
@ Seablane - nice work isolating the app (most people don't bother to follow-up once their problems are gone).
Your post is nearly verbatim to my scenario: decent battery life for about 8 mos, then this last week it started to drain within a couple hours. I haven't had "official" diagnostics run, but I really don't think the battery is the real problem. It's gotta either be a specific app or power mgmt is going haywire. I restored it the other day, but the issue persists.
I have recently purchased a couple photo-editing apps (directly from iPhone), which I was beginning to implicate. I also have Evernote installed on iPhone and MacBook Pro (Uni), but sync setting on desktop version was already set to "manual". Evernote.app on iPhone did have sync over cellular network enabled, which I think I previously set to Wifi only. This should reduce battery drain somewhat, but I can't imagine too much.
I also notice that iPhone it hotter than usual as I wake it from standby (in my case), which makes me think it's not really reducing power consumption in standby mode.
It's really frustrating on top of having a "dead zone" throughout my house. I have to go outside to make/receive call or check voicemail--sheesh!
I promise to report back if/when I resolve my battery problem.
It IS the battery. If you have an apple store near you, you can take your phone there and they will check it on the spot. If it shows that the battery is bad, they will give you a new one for free, provided that you either purchased the phone within the last 30 days or have the Apple warranty. If you don't have an Apple store close by, call them and see what you should do. Good luck