iPhone Battery Draining Quickly when using Exchange 2003 Server

weve run into a strange one where  users iPhones just kept draining thier battery in 2-3 hours. we had phones replaced and same thing is happening. i've done searches but the links are either outdated or going to a different topic completely. does anyone know the fix for this behavior? could it be a DNS issue?All help is greatky appreciated.

David ElebuteSystems ConsultantAsked:
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Yes, this is will happen specially if you turn on the 3G.
Also try to close all the running program, by double press on the home button and then all opened progs will appear then pres and hold on any program, then press on X to close one by one, also try to reduce the screen light.
2-3 hours? Sounds like the iPhone is synching a corrupt item.

Install this:

If the problem still exists the delete the pairing with the mobile admin web page, delete the exchange account of the device and set it up again.
Alan HardistyCo-OwnerCommented:
What version of the iOS s on the problem phone?

If it is 4.0 - there is a bug and the iOS needs to be upgraded and I have a blog entry about this:


If the iPhone is not on 4.0, then it could be a corrupt mailbox, so please move their mailbox to another mailstore and see if the problem continues.

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nappy_dThere are a 1000 ways to skin the technology cat.Commented:
I would suggest you config your iPhone for manual sync. This way, it is not constantly checking for data.
David ElebuteSystems ConsultantAuthor Commented:
I am going to work on the hotfix and test out some of the other suggestions.
thank you all for your recommendations.

I meant to say "delete the Exchange account OFF the device"
Was it the IPhone OS?
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