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IPhone 3G battery dies quickly after 3.0 software update

My iPhone battery was never an issue until I upgraded the software to 3.0.

My phone now goes from a full charge to 20% in less than 3 hours while not in use.
I have Location Services shutoff and every other setting on my phone has remained the same.

I also notice my phone gets very hot when I do use it.

What's up with the decrease in battery life?

15" Powerbook, Mac OS X (10.5.7)

Posted on Jun 18, 2009 8:23 PM

76 replies

Oct 23, 2009 9:39 PM in response to Community User

I guess it's comforting I'm not the only one. I noticed this after the last update. I use my phone as an alarm and my alarm wasn't going off. The first night I thought I just didn't charge it enough before bed. The second night, I knew it was fully charged. Midnight to 7:30am - the phone was dead. Not cool had I been on a business trip.

I thought it might have had to do with the fact that my phone has EVERY subscribed calendar on my mac. I didn't really want that and am hoping there's an option to CHOOSE which subscribed calendars sync over the air.

Anywho, if there's a fix or a new update - I'm eagerly awaiting. Otherwise, my iPhone is now a corded phone tethered to my laptop or the wall. Awesome.

IPhone 3G battery dies quickly after 3.0 software update