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iOS 10.3.2 update drains battery

I have an iPhone 7 Plus. I have had no battery life issues until updating to iOS 10.3.2. Prior to the update I would get a full day of use. I could go from 6 am to 11 pm and still have 20% battery life left. Since updating to 10.3.2, I am at 50% battery life by midday with light use, and need to charge before leaving work for the day. Anyone else having this same issue since upgrading to iOS 10.3.2?

Posted on May 18, 2017 2:48 PM

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Question marked as Top-ranking reply

Posted on May 19, 2017 9:49 AM

Hello pechapa,
Thank you for using Apple Support Communities.

I understand from your post that since updating to iOS 10.3.2 your battery life has decreased. New updates have new features that can use more battery life than previous software versions. I recommend using the steps from the following article to maximize your battery life:

Batteries - Maximizing Performance - Apple

Best Regards.
436 replies

Jun 30, 2017 4:12 AM in response to GJMHTWT

To be fair, I think the person that suggested the iOS 11 option is only in the beta program... which anybody can join. I'm not going that route personally because I don't want the other bugs that can come with beta versions. However, I'm also hoping that 10.3.3 will have a fix. Until then, I'm not going to update my 6s. Just can't afford to have the phone not work.

Jun 30, 2017 4:24 AM in response to WildBill

Well, the thing that bugs me... beyond the use of the phone with risky updates... is that (a) there's not a chance in **** we'd switch to another phone product, just not interested and (b) we've got a ton of Apple devices in the house -- four iPads in use and three collecting dust, five iPhones, three Macs, an Apple TV, an Apple Time Capsule, plus more that's been passed on to family -- and every time a device breaks down because of a crappy update, I get called in for "tech support" and have to explain that the update itself is just buggy. When it's my wife's phone or iPad or computer, worse, she gets irritated and we end up having a fight over it. Apple, you're tearing families apart!!! (But seriously, please... find a way to fix this and test future updates so it doesn't happen, yes? Crashing battery power is a really serious thing to just let loose and ignore. And, yes, the suggested go to fix of "restore your phone as new" is not an option. It doesn't work. And it's a serious hassle. I've got hundreds of apps on this **** thing.)

Jun 30, 2017 2:52 PM in response to pechapa

Strange thing iPhone 5s I Clean the logic board connectors Everything done new battery Original of apple

Leave the iPhone Battery completely empty Leave for 10 hours with empty battery Then iPhone fully charged with 10 watts Adapter Of apple And the iPhone charged in a cool place

You can also lay it on a cool ground without cover

And the iphone has been on now 100% for 2 hours now Normally he has 95% on 45 minutes Now for two hours at 100% Maybe it's okay now Maybe people can try what I did

Jul 4, 2017 6:15 AM in response to Newkkl

Had the same issue. Ended up getting the battery replaced in my iPhone 6 ands it's been fine since. These batteries are only designed to last about 2 years of charging cycles. Saw my battery performance drop off with the 10.3.2 update, but now working fine. Could there be an issues with 10.3.2 and only certain models of batteries?? Who knows...

Jul 4, 2017 6:39 AM in response to pechapa

I had exactly the same problem with my Iphone 5s after updating to 10.3.2.

Suddenly my problem disappeared since I turned on the 'battery saving mode', disabled all location services, charged it a few times to 100% and it automatically disabled the 'battery saving mode'. Turned on the location services. Battery has returned to the autonomy like before :-).

Jul 4, 2017 10:44 AM in response to pechapa

Since I updated my iPhone 6 Plus it's almost completely drained by 14-15 o'clock the same day. 😢 Before the update it could last a day and a half. This is not a problem with my battery, but with the software.


I looked at battery usage, and the apps use the same percentage of battery usage as before, the problem is that it drains the power dry more than twice as fast as before. My iPhone 6 Plus is hotter than usual as well.


When will this be fixed? 😠 It's seriously annoying needing to charge my phone on the go, worrying about when it'll go out.


I want to go back to 10.3.1...

Jul 5, 2017 2:55 AM in response to pechapa

A question for everyone...


Is there anybody on this list who has a 6s that HAS already had the battery replacement, and who then went on to do the 10.3.2 update?


If so, what's been the outcome?


My 6s battery tanked many months ago and I went through the battery replacement program. I've been holding off on 10.3.2 because I didn't want to go through that again (replete with Apple telling me that a "full restore" would be the solution until they admit the battery flaw).


I'm wondering if many of you on here just haven't had the battery replacement yet.

Jul 5, 2017 10:00 AM in response to pechapa

From my personal experience, the only solution is a battery replacement which is part of a recall Apple is carrying on. My problems started exactly after upgrading my 6s to 10.3.2. I contacted support, and after looking at my Serial they told me my problem had to do with a battery factory problem and that they have a recall program. For what I read, it looks like on some of the latest OS updates, Apple has been trying to address battery overheating problems and the solution, while making those batteries safe, is creating the draining issue.

Jul 5, 2017 10:40 AM in response to JuanMoncler

So... just to be clear, you're saying that if the battery in the phone has been replaced... due to the recent recall on batteries in, for example, the 6s... you should NOT have the battery drain problem others are experiencing in 6s (and other) phones?


I have had the battery replacement, due to the other recent issues with an iOS upgrade and battery power. However, I'm still wary of upgrading to 10.3.2 because I've seen at least one other post where the user claims to have the battery issues with 10.3.2 even after getting a new battery in his phone.


Can you clarify?

Jul 5, 2017 4:43 PM in response to JTF

iPhone 7 on 10.31 working as per usual. A non recall iPhone 6 upgraded to 10.32 even after all of the suggestions can't get through the day when fully charged and strapped into a large capacity mophiE. That includes large periods of time doing nothing but sitting there. Everything off turns it into a very old Nokia phone And doesn't have much impact on battery drain versus using it like an iPhone with everything on. Some mysterious change is sucking it dry regardless!

iOS 10.3.2 update drains battery

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