More on iPhone 4S battery issue

In my last report on this I noted that an Apple phone support person (Patrick) had me completely reset my iPhone: back it up to iTunes, reinstall iOS5, then sync my stuff back onto it.

When I did this yesterday it seemed to be helping, a single full charge lasted all day and while I wasn’t using Siri heavily (Siri was down yesterday) I did various things with the phone during the day.

Last night when I went to bed I noticed that the phone was at 78% charge and I left it unplugged to see if standby mode would wipe it out again. The phone was connected to our wifi network and to our AT&T macrocell so I assume that it’s nightly maintenance connections got made and it was active during the night.

The good news is that this morning it has a 76% charge on it, only losing 2% overnight.

No doubt the update to iOS 5 will improve battery life even more but there is now no doubt in my mind that completely resetting the phone helped a lot and people who have this problem should at least do this step, it can’t hurt.

I may eat these words in the next few days: I’ll be in New York tomorrow and I have a friend coming to visit who’s an iPhone user and who will want to mess with this new phone. My phone will get a good workout and we’ll see if Patrick’s “fix” is what I think it is. But I’m a lot happier today than I was yesterday, and this is a good thing. Of course, having electricity in the house (finally) doesn’t hurt.

2 comments

  1. Hi Richard.
    As far as I know the iPhone will do its nightly maintance via wireless only if connected to a power cord. But what exactly did you mean by nightly maintance?

  2. Daniel: I usually plug my iPhone in overnight to charge it so I’m sure you’re right. Nice to know it won’t do nightly maintenance on battery power. The fact that it drained on its own must have meant some process was running that I was unaware of but in fact, I quit all running apps and restarted the phone. So, I’m pretty sure it was a problem with the install of iOS 5. It’s much better now that I’ve reinstalled it, it lasted all day in New York yesterday with lots of use.

    No doubt the iOS 5 update coming soon will help even more.

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