IPhone Email Continuous Sync

My boss's wife tells me that her IPhone continuously syncs her email and it is draining her battery.  I have not seen the phone but have only spoken with her via phone, so I don't have many details.  I asked him which IPhone she has and he told me it is "the 3G one, not the newest 4G."  I would like to have an idea what is the fix prior to her bringing it in which will be later this week.  I know the details are sketchy, but I was hoping that this might be a common problem and someone could provide me with a link for a fix.
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Mustafa L. McLinnConnect With a Mentor Systems Engineer/Systems AdministratorCommented:
it is... actually... just turn off the push feature...

/Settings/mail contacts and calenders/

Then change the "Fetch New Data" feature to 15 or 30 minutes... that takes away the continues checks.. and takes a load off the phone..
Alan HardistyCo-OwnerCommented:
What OS version is her iPhone 3G phone on?  If she is using v4.0 then there is a fix from Apple for this:


Either install the fix, or upgrade the OS to the latest version.
Alan HardistyCo-OwnerCommented:
@Endorfinized - whilst that will potentially resolve the issue - it is not a fix - just a workaround.
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can you be more specific about how long the phone lasts on a single charge?

My old mobile lasted 4 days; my iPhone is sometimes lucky to get through one day!  And that's standard.. ..if I use my copilot sat nav it'll last about 3 hours if I'm lucky!

It's the iPhones Achilles heel, but unfortunately if you want the power and versatility then it's something you just have to deal with :/
alanhardisty: Actually, if the account is POP or IMAP, and set to check her email very frequently, reducing the frequency IS the fix. Likewise, IF the account is set up with an exchange server AND the phone is on iOS 4, then the article you cite may be the answer. It all depends.
Alan HardistyCo-OwnerCommented:
iPhones can only check for POP3 / IMAP mail every 15 minutes minimum and Hourly maximum - thus this should not present a battery drain for the device.

Push mail is what is usually draining on a battery as the phone keeps a connection open to the server at all times.

When Apple brought out iOS4 for the 3GS - they had to release a patch to resolve a problem which caused such issues as slow sync and as a result - this will drain the battery and is the usual cause.
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