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iPhone battery issue (my 2 topic day!)
Posted by: rouderon
Date: March 09, 2016 09:35AM
I have a 32gb 5s and it had great battery life - until I went from 8.3 to 8.4. I hoped every iOS update that came out would fix the issue, but it's the same: on sleep/standby, the battery goes from 100% to the high 70's in about 3 hours (sometimes even lower %).

Here's what I've done so far:

1. Restored as new (but, did restore the last back-up to the phone afterward - my last ditch attempt will to restore as new and install all apps as new instead of installing the back-up)
2. Turned off just about every function (location services, push mail, cellular data, etc.)
3. Performed a stand-by test (note the usage & stand-by time, put it to sleep for 5 minutes, then verify that standby increased by 5 minutes and usage didn't increase)
4. Replaced the battery 2x (once with a cheap battery, and when the phone was acting the same, installed a more expensive, highly-rated battery - still no change)
5. Bought a battery case for emergencies :-)

The phone is out of warranty, so if it's a hardware issue, I think I'll just live with it. But, before I nuke & pave it again (and this time install everything from scratch), I was wondering if there was anything I'm missing that could be the problem. I've been scouring the web since the 8.4 update and almost every article gives the general 'get more out of your battery' advice (which I've already done).
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Re: iPhone battery issue (my 2 topic day!)
Posted by: Microman
Date: March 09, 2016 09:40AM
$80 bucks for new battery installed at Apple Store for iPhone 5s
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Re: iPhone battery issue (my 2 topic day!)
Posted by: cbelt3
Date: March 09, 2016 10:05AM
The latest iOS has much better battery management, IMHO. I was enjoying it on my 5s until I killed it by dropping it on a tile floor.
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Re: iPhone battery issue (my 2 topic day!)
Posted by: mattkime
Date: March 09, 2016 10:35AM
definitely upgrade to ios 9 and report back.



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Re: iPhone battery issue (my 2 topic day!)
Posted by: space-time
Date: March 09, 2016 11:22AM
iOS 6 = OS X 10.6 (good)

iOS 7 = OS X 10.7 (junk)

iOS 8 = OS X 10.8 (barely acceptable)

iOS 9 = OS X 10.9 (good)
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Re: iPhone battery issue (my 2 topic day!)
Posted by: rouderon
Date: March 09, 2016 11:30AM
I'm at the latest iOS and have a brand new battery (installed it last week and verified it had 0 cycles when I fired the phone up.
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Re: iPhone battery issue (my 2 topic day!)
Posted by: Article Accelerator
Date: March 09, 2016 12:35PM
Quote
rouderon
I have a 32gb 5s and it had great battery life - until I went from 8.3 to 8.4.

Now it's time to go to iOS 9.2.1.

Quote

I'm at the latest iOS and have a brand new battery (installed it last week and verified it had 0 cycles when I fired the phone up.

Okay, now I'm confused.

Anyway, have you seen this one?:

[thewirecutter.com]
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Re: iPhone battery issue (my 2 topic day!)
Posted by: rouderon
Date: March 09, 2016 02:29PM
I am at 9.2.1 and, not sure which part you're confused about, but assuming the 0 cycles - if so, I meant that it was truly a brand new battery (the 'new' [cheap] battery I bought first had 195 cycle counts - meaning it wasn't exactly 'new')

I'll peruse the article - looks like a lot of info!

Just to be clear: I've had almost every iPhone up till the 5s since the original iPhone and never had a battery problem. After I went from 8.3 to 8.4 I immediately knew something was amiss the next day. I'm trying to avoid nuke/pave again - my last resort. But, I'd bet it's software-related somehow (possibly a bad/unruly app?) since the battery drain problem began immediately with an iOS update.
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Re: iPhone battery issue (my 2 topic day!)
Posted by: Bimwad
Date: March 09, 2016 05:02PM
Quote
rouderon
I'm at the latest iOS and have a brand new battery (installed it last week and verified it had 0 cycles when I fired the phone up.

So are you saying that you've installed 9.2.1 and a new battery and still see problems?

Have you pared Background App Refresh to the essentials?

Have a problematic app like Facebook, which is known to be a battery drainer?

In active usage, 10%/hr is not horrible. If it's losing that amount on standby, then something running in the background is eating the battery.
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Re: iPhone battery issue (my 2 topic day!)
Posted by: space-time
Date: March 09, 2016 05:02PM
iOS 9 can show you which App are using battery
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Re: iPhone battery issue (my 2 topic day!)
Posted by: rouderon
Date: March 09, 2016 06:41PM
Yes - I've installed every update (since the 'infamous' 8.4) and have been at 9.2.1 since it was released. And, yes, I've installed 2 batteries (both within the last 2 weeks) and haven't seen any change in battery drain. Unfortunately, I think my only option is nuke/pave :-(

Also, nothing in battery usage shows anything out of the ordinary. I do have low phone signal problems at home, but I still have the drain problem when the signal is good.
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Re: iPhone battery issue (my 2 topic day!)
Posted by: RAMd®d
Date: March 10, 2016 12:54AM
There was something about resetting Network settings (you'll need to reenter your network password) and turning of some auto-time sync setting, both situations causing high battery drain.

There was also something posited abut a fresh install of an iOS/update doing something for a period of time the increased battery drain for a day or two.

It was supposed to be some kind of activity that settled down after a couple of days.

Has it been longer than that?






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Re: iPhone battery issue (my 2 topic day!)
Posted by: rouderon
Date: March 10, 2016 08:01AM
Yeah - I updated to 9.2.1 when it was released - so it's been a while. I'll do a search for the network reset & time sync ideas. I keep thinking there's a simple fix that I'm overlooking. But, like I said, I've been researching this issue since the 8.4 update and so far nothing has fixed the problem.
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Re: iPhone battery issue (my 2 topic day!)
Posted by: Speedy
Date: March 10, 2016 11:36AM
I have a feeling your newest, more expensive battery is not as good as you think.



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