Previous 1 2 Next 16 Replies Latest reply: Dec 1, 2008 1:49 AM by marijkeg
Pleeplius Level 1 (0 points)
I previously posted about very poor battery life and how a full re-install and reset seemed to fix the issue. The battery life was great for a week or so then I tried to go from my calendar on .me to my calendar on exchange. Then the issues re-appeared.

I am 99.9% sure that calendar sync via exchange is the issue. I am not sure if it's a funky server setting that my company has or what. It seems to work fine for others in the company however my e-mail account at work is relatively old compared to theirs. I am also on a Mac using Entourage. I made sure push was turned off and only fetch every hour. Still the same issue.

Again there is no battery drain when synching via iCal/.me. This kind of defeats the purpose of push calendar for me because I need to synch Entourage with iCal then iCal with .me. This means I need to be on my company network to sync. So the only time my calendar syncs is when I have my laptop on the company network.

The reason I'm writing is in hopes that someone from apple reads this and posts a fix. The CPU gets noticeably hot when exchange calendar sync is on so I know something is up. If you have any more info on this please let me know. I am also going to try the apple store tomorrow. Maybe it's a defective phone BUT since it works for everything except Exchange cal sync I am thinking it is some server/client polling issue.

MacBook Pro 15", Mac OS X (10.5.4)
  • Sajji Level 1 (0 points)
    Thanks for the post. I'm having the same problem. I'll charge my iPhone (yet once again) and disable push calendar.

  • godeacs94 Level 1 (0 points)
    I am having this exact issue. I too use Entourage and have to resort to using mobileme/ical push to get my calendar. I have reset the phone, upgraded to 2.01, but nothing has helped this battery drain problem.

    Please help us!
  • Pleeplius Level 1 (0 points)
    I also tried the update and it did nothing for me.

    I noticed one thing that was odd when my calendar was synced to exchange. If I have 2 all day events they continuously swap spots. It's like the calendar app can't determine which one has priority over the other. Maybe this is causing continual polling of the server. Do you have all day events that conflict with each other?
  • godeacs94 Level 1 (0 points)
    I have all day events, but haven't noticed them swapping. I do notice the bug with iCal that keeps adding holidays over and over, and begins adding multiple events with entourage, but that shouldnt have anything to do with AS OTA. It seems there are several people having this issue around our office, but others have no problems, which leads me to believe it is some server side settings, and some inflexibility with the iphone software...
  • Signals42 Level 1 (0 points)
    I just registered for this forum so I could add my name to the list of people who are having trouble with calendar sync to an Exchange server.

    If I set up my Exchange account to sync calendars, push or otherwise, my battery dies in 3-4 hours. Also, on the usage screen, my "usage" time is equal to my "standby" time. The phone also gets incredibly hot, even in standby.

    All of these symptoms go away if I disable calendar sync and reboot the phone. So, I'm 99% sure it's the calendar sync, too.

    Mail and Contacts seem to be working. But, I really need my calendar to work! I sure hope Apple can figure this one out and fix it in the next firmware upgrade...
  • bunnydrumming Level 1 (145 points)
    Apple does not trawl its way through every posting on this site - you need to send this information to them directly
  • AranM Level 1 (0 points)
    thanks to this and many other posts I've figured our that my issue was xirecy related to Exhange Calender and push. I've tried removing all of the one day events without luck.

    Any word of this yet?
  • yankeegal Level 1 (40 points)
    I don't have exchange calendar... but since the last update my battery life stinks too, just awful.
  • GregF-ATL Level 4 (1,015 points)
    I probably get about 5 calendar requests a day, and I have not had a problem with them relative to battery life.
  • tokatta Level 3 (865 points)
    Others with PUSH Exchange eating the battery have reported that the iPhone is not maintaining a connection waiting for updates but doing a pull/check every few seconds. Many have found a fix, by deleting and then recreating the Exchange account. I am guessing a reboot inbetween would helpful.
  • icebike Level 3 (740 points)
    bunnydrumming wrote:
    Apple does not trawl its way through every posting on this site -

    That is simply FALSE:

    Who are the Apple Discussions personnel?

    Administrators—Administrators are Apple Employees who focus on maintaining, updating, and enhancing the discussion forums. Administrators will also attempt to maintain proper decorum in the discussion forums. Due to post volume and other factors, Administrators may not respond promptly, or at all, to these discussions.

    Apple Hosts—Hosts are Apple Employees who focus on gathering technical feedback that will be forwarded to the appropriate Apple group. They also help identify possible content for Apple's Knowledge Base and, when possible, they correct erroneous information in the forums. Hosts will also attempt to maintain proper decorum in the discussion forums. Due to post volume and other factors, Hosts may not respond promptly, or at all, to these discussions.

    Taken directly from Help and TERMS OF USE page that you should have read when you signed up 255 posts ago.
  • Harold Leewis Level 1 (5 points)
    I;ve got the same problem, and even when push is turned off it drains my battery.
    My battery is empty within 4 hours, when exchange is off it's a lot better, which the
    same usage it lasts for 2 days.
  • icebike Level 3 (740 points)
    what do you mean "when exchange is off"?
    Exchange doesn't run on the phone so how do you turn it off?

    If push is off the phone falls back to fetch. What is your fetch interval?

    Also, when you sync your calendar, how many days is it set to copy?
  • AranM Level 1 (0 points)

    OK - After about 5 hours of troubleshooting I have FIGURED out why my battery was lasting only 3.5 hours. I hope this helps.

    1. completely wiped the phone away and brought it back with push disabled. EVERYTHING FINE
    2. I enabled push waited 1 hour. EVERYTHING FINE
    3. I enabled mail push syncing. EVERYTHING FINE
    4. I enabled contacts push syncing. EVERYTHING FINE
    5. I enabled calendar and BAM battery starting spinning in overdrive. The calendar was the issue.
    6. I disabled push and to my surprise it did not get better, only after a reboot did the batter return to normal. OK - so I have narrowed it down to the calendar.
    7. I am using Outlook 2007 with Exchange 2003.
    8. I took a bold step and archived my entire calendar to a pst file so it left nothing in the calendar.
    9. Again to my surprise the battery started draining immediately when i enabled the calendar again. On a hunch I checked the properties of the calendar and it said there was a few kb left. I could not do anything to find these.
    10. I logged into Outlook web access (http://exchangeservername/exchange - if enabled) and did a search on the calendar and it found two orphan calendar entires. I deleted them.
    11. I enabled calendar syncing again and it went perfect. I then copied back all of my calendar entires from the archive pst to the calendar and luckily no problem.

    The push service must have not known how to process these two entires and was just chocking on it. For the last two weeks I have been getting 12-14 hours from a charge with 3-5 hours of use. Farb better then the 3.5 hours with no usage. I hope this helps!!
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