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The Game 161

macrumors Nehalem
Original poster
Dec 15, 2010
31,585
20,820
UK
How you finding it battery wise? anybody leave push on? or do you just fetch every hour or so?
 
How you finding it battery wise? anybody leave push on? or do you just fetch every hour or so?

I have full time push on for three iCloud accounts.

Works great, and I can manage a few days between charges - Less than my iPhone 4, actually.

That's with occasional calling, normal web browsing, lots of texting, music, some video, and some games.
 
Question with push, does it consistantly check for new e-mails or just when new ones come in?
 
Question with push, does it consistantly check for new e-mails or just when new ones come in?

With iCloud it's when a new email comes in. It was the same with MobileMe as well, but only with the MobileMe account used for syncing.

I can't comment on other services, as I only use iCloud now.
 
The server sends a message to the device telling it there's an email there.

Thought so.

Least it doesn't keep checking and updating the server which would hurt battery life.

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I don't think you understand how push email works in comparison to polling email.

I'm more than aware of the differences.
 
Since push always keeps a connection to the server open, I wonder how the number of emails affects battery life.

What do you use then? how much more battery does push use than fetch do you think?
 
Push E-Mail will only transfer a very small information header and the e-mail itself. Fetching E-Mail, on the other hand, will transfer handshake info, your login name, password etc. every single time the iPhone fetches the messages. Also, push e-mail via mobile me is compressed which reduces data size - while IMAP fetching isn't. Each time your client fetches E-Mails, it transports 10 times more data than the amount of a push e-mail.

If you set your fetch intervals to an hour then yes - the battery will probably last longer. Anything below that may hit the battery even worse than push e-mail
 
How you finding it battery wise? anybody leave push on? or do you just fetch every hour or so?


I have about 5 email accounts on my 4S. From Yahoo, Gmail, Hotmail, my college email, and icloud. All push.
They come in practically instantly for me, for instance when I buy something on Amazon from my computer and about 45 seconds to a minute (sometimes faster) after I checkout my iPhone dings for the confirmation/receipt email it received on my Yahoo email.
Battery life isn't terrible but it isn't as good as my old i4 either.

Lasts all day with one email account receiving about 15-25 push emails a day and the others always on push.
But battery that lasts all day is good enough for me since I can charge at night.
 
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