iOS 10.3.2 update drains battery

I have the same problem. Have had a plus model for 2.5 years, and never lost battery so quickly. 10.3.1 was also bad. Will honestly considering dropping Apple as their attention to detail with their software has really dropped off. I need my $850 device to have stable, predictable functionality.

BAnLoo,

Go to Settings > Battery and scroll down to BATTERY USAGE to see the apps that are consuming your battery. If any of the apps have unusually high usage they can be shut down (double tap the Home button, scroll left or right to find the app, then swipe up to shut it down).

As time goes by you should be able focus on the problem apps. Usually it is a rogue app constantly running in the background. You should then be able adjust the settings to the problem app to solve your problem.

I have the same problem with my iPhone 5S, I charged my phone and left the house for work. After an hour of NOT using it (just inside my pocket with cellular data off) i saw that the battery went from 100% to 80%. after half an hour, it went to 40% and stayed there for an hour. an hour later again, it went dead. Not having problems with the battery before as it is a refurbished phone and the battery that is provided is brand new. I am thinking that it is due to the update since I am not having problems with the battery drain when I am still on 10.3.1.😟

On the contrary, I think pechapa being extremely polite AND honest under the current circumstances. This has been an ongoing issue with Apple's battery problems after iOS updates. By the way, everyone who's having this issue has done all of the boilerplate/textbook suggested fixes, including restorations. None. Of. Them. Work. Apple seriously needs to do a better job at containing and resolving these battery issues sooner than later. Especially when their customer spends up to $800 on a new phone and rely on it for work, home care matters and emergencies. There's nothing more frustrating than having your line of communication disrupted or in jeopardy because of Apple's **** poor way of managing this issue. Pechapa's reply is spot on.

As is echoed by the other posters here, I too am tired of the stock answers Apple representatives consistently offer to concerns like these (which are scattered all across the other Apple forums, other sites, and even in Youtube videos). My 7 Plus is my third Plus model and the only one that has shown these kinds of battery drain issues:

- it is providing me just under 7 hours of actual usage time per day, nowhere close to advertised specs, this limited for me to messaging, occasional work emails, and occasional work calls. Its standby mode also seems to be draining ridiculously, as shown by......

- it drains around 10% from a full charge when unplugged for overnight tests, even in airplane mode AND EVEN ONE NIGHT WHEN POWERED OFF!

Each update from iOS 10.3's launch has created worse and worse battery drain. Contacting Apple Support to create a care ticket did not help. Visiting a local Genius Bar did not help, only producing a diagnostics test that resulted the battery as perfect, suggesting that suddenly I must have a rogue app (among the same basic apps I've run on my previous Plus models with no issues whatsoever).

This is not the kind of performance and customer support that has me eagerly anticipating the release of iPhone 8 or iPhone X or whatever the next potential battery hog is to be called.

And here's the craziness that happened today. Picked up my phone which had a 67% charge and went outside the office to walk around a bit. Got across the parking lot and my phone gave me a "low battery" alert, and the battery showed 14%. My car was a few steps away so I got in and plugged into the car charger, the battery immediately popped over to green and showed a 58% charge - instantly! It did not charge up to 58%, it already had a 58% charged and was showing 14%. I took it off the charger and watched the battery drain back down to 17% in about two minutes. Plugged it back in and it popped green again and showed 57% charge. The battery was charged, but the OS was not reading the charge correctly, or not managing it correctly.

Dear Apple, Something is terribly wrong with the 10.3.2 update!

I'm not one who usually comments on these things. I typically just roll with the updates and figure the resulting problems will be resolved soon-ish. My day to day activities allow me to have access to power sources from sunrise to sunset, so if needed, I plug in. However, I too am getting frustrated with the problems arising to begin with, and Apple's proposed steps to resolve. Don't get me wrong, as one who is a Systems Administrator and does IT work on the side, I understand there are certain troubleshooting steps that should be done before jumping to conclusions and treating something that one only thinks is the problem. When large amounts of people complain of the same thing though, especially around the same time, the most likely cause is something they all did, such as an update, not that they all of a sudden have stuck apps.

Like many of those posting in this thread, I haven't changed the way I've been doing things on my phone. I use the same apps throughout each day as I always have. I typically need certain apps and don't have much time to play around with others. I have seen battery problems with my iPhone 7+, off and on since I got it. Right off the bat I noticed it wasn't getting me through the day even as well as my older iPhone 6. I took it to the Genius Bar after doing all the proposed troubleshooting steps short of backing it up and re-installing it. The GB person ran their diagnostics test and saw that indeed, the battery was draining more quickly than it should have been. The suggested I backup and wipe the device, use it with just the stock apps, reinstall apps one by one until the problem comes back. This would then show which app was the cause. While logically that makes sense for troubleshooting an individual case, it doesn't make sense when it's multiple users complaining of the same issue at the same time. It's also even more disruptive to the user who spent $800 for something that is supposed to just work. For me the 1st problem went away after an update. Now it's back again and as I've already stated, I've not changed my use habits.

Apple would be much better off simply acknowledging there is a problem, that they are looking into it, and that a fix will be in the pipeline, than to have them wipe their devices every time this arises. And to tell people that a "new feature" might be the cause doesn't make it alright. I buy iPhones primarily for their stability, not just for their features. If I wanted a product only for it's features, I'd buy an Android device.

Fiest of all I agree with pechapa. After the latest ios 10.3.2 update, the battery life of my iPhone SE has also decreased to about a half of which it used to be. You can see the current status in the picture attached. Whereas before ios 10.3.2 it used to be about 50%+ with this much usage.

Not satisfied. We need the solution #Apple???

Once I found out that apple was going to use a new file system and and make major changes in ios I was very curious of whether it will slow the phone down or cause new issues like battery problems that have been massively indicative on this forum. So I had decided to try the new 10.3 ios firmware out to disprove these theories but rather proved me right in the end. My phones home button was suddenly less responsive and the taptic feedback had become less apparent to the feel. But mainly the battery had started to disappoint in a big way. My Iphone 7 plus 128gb with ios 10.2.1 would last me almost two whole days without a charge and I would always charge it the third day but with 10.3 it would barely last a day. The battery would be at 50 with in a few hours or less.

I immediately downgraded to ios 10.2.1 and everything was back to normal and this is the best battery and performance I have ever had on any iPhone or phone for that matter. Heres a picture for proof.

Please read this please

Calibrate your battery

How do you do that i will explain

1 Turn off your iphone

2 Plug your cable into your iphone But Not too deep

3 Keep your finger on the power button and the home button

4 Now plug in cable And press power button and home button And keep them in Do everything At the same time

5 It takes 10 seconds If you see the apple logo after 10 seconds Release the buttons Start the iPhone faster than 10 seconds Then you have to start over again

6 Now charge your iPhone Is he on 100% Leave him another 2 hours To the charger

I'm not saying it solves everything But you can always try

There are users of the current release who have a problem with it. Many different problems, actually; all they have in common is a symptom. Probably as many different causes as there are people reporting it. The overwhelming majority of people using 10.3.2 have no problem. How can I tell? Because if they did, they would be posting about it. If you thinkg 24 pages is a lot, see this thread:

That was a real problem that affected about 5 million users out of the 100 million at the time.

You have a problem with your phone. I'm sorry you do, but what you can do about it is troubleshoot the problem, not assume that it is a problem with all (or even a substantial minority) of 10.3.2 users.

U2 IC Chip Problem

Believe me it's the u2 ic chip That is broken Something really wrong with iOS 10.3.2 update

And many u2 chips have broken By update 10.3.2

And going back to ios 10.3.1 or 10.3.3 will not help Because your u2 chip is already infected

Just replace the u2 chip that helps

Try it out please

You can easily check That the U2 IC chip is still healthy

Your download coconut battery

http://www.coconut-flavour.com/coconutbattery/

And put your iPhone on airplane mode And connect him to your Mac

Watch how much watt he charges

It must 3.80 and 4.00 watt if it 3.00 or less Then is the U2 IC chip is not healthy anymore if it 3.80 and 4.00 watt

Then it's okay

But set your iPhone to battery-saving mode and airplane mode And not use him

U2 ic chip controls the power of your iphone

My iphone 5s charge on with 2.80 watts After replacing the u2 ic chip with 4.03 watts

If that's not healthy, you'll get battery drain

I think iOS 10.3.2 update Has damaged some U2 ic chips Because something was wrong In the update

Just wanted to share something I've noticed today. I'm getting decent battery life, and it seems like it may have something to do with Wifi calling being disabled. I did a full restore and set up my iPhone as new yesterday.

The battery was pretty terrible all day yesterday, possibly because my phone was populating and indexing a whole bunch of content from iCloud and Apple Music. Not that's settled down I'm having much better battery life today.

I couldn't figure why that might be until I noticed the absence of the words "Optus Wifi calling" next to the wifi icon.

After noticing that I checked my cellular data settings and saw they are now set to use 4G/LTE for "Data Only" rather than for "Voice and Data".

Not sure if it's a mere coincidence, but I thought I'd look around to see whether anyone else has had battery issues because of Wifi calling. After reading this thread ( Battery Issues with 9.1 AT&T Wi-Fi Calling ) I'm convinced it was the problem in my case.

I remember updating my carrier settings on my first install of 10.3.2, so think the problem may have arisen then.

Not sure if it will help, but I reckon if you have battery problems and are also using Wifi calling it may be worth switching that feature off and seeing how your battery goes.