iOS 12 is eating my battery!!!

[FeliApple]

You want awesome battery life for years? Don't update. I'm, to be honest, baffled, by people who update like this: The update goes wrong, battery life decreases around 40% - let's say, from 8 to 5 hours on-screen usage - when updating, for example, the iPhone 6 to iOS 9. They complain. This discussion, therefore, takes place with the same endless arguments on each side.
A few years later, that same person buys the iPhone 7, on iOS 10. "I love it. Battery life is easily twice what I was getting with the 6. It is now, around 8 hours of on-screen usage. This phone's battery is simply amazing." Why, one year later, that user goes ahead and updates to iOS 11. The update goes wrong, battery life decreases around 40% - let's say, from 8 to 5 hours - when updating. The user complains again. I mean, don't say anything. We told you. Perhaps, a few excuses are given: "Battery health isn't what it once was. Maybe that's it. Yes, that's it. iOS Updates are generally harmless." False. Battery health wouldn't have mattered as much if you maintained the original iOS version.
iOS updates negatively impact performance and battery life. There are no exceptions, regardless of Apple's promises. It is well known that not updating is the only solution. Endlessly complaining won't fix anything. Don't complain, just, please, listen. Don't update, and you won't have any issues at all.

 

[bbrks]

But the security of IOS updates....should we all abandon it for the sake of battery life.....oooo what a horror

 

[IowaLynn]

So the same yrban legends? Phones just need a factory reset at times. With major updates definitely.

Apple sells phones that skimp in RAM. It does hurt. Sane with regards to skimping on battery capacity, and we buy the marketing hype it's okay? Was iOS 9 full 64-bit OS? Are there features now okder phones back and can't support? Ever tried running an app that is 500MB on a phone with just 2GB?

We finally have phones with 4GB enough to store more code in memory, while your Galaxy S9+ has 6. Umm.

 

[smorrissey]

Well IOS lastest build is definitely eating my battery on my ipads.

Yes, i performed a clean install when ios 12 was released and although some can argue an ipad air 2 (purchased when it was released) it is now old and blame the battery and ipad pro 10.5 bought 1 year ago is having this quick drain behaviour too although not as fast but still.

I hope when ios 12.1 is released together with then new ipads this problem will be solved.

 

[Rhino1]

You want awesome battery life for years? Don't update. I'm, to be honest, baffled, by people who update like this: The update goes wrong, battery life decreases around 40% - let's say, from 8 to 5 hours on-screen usage - when updating, for example, the iPhone 6 to iOS 9. They complain. This discussion, therefore, takes place with the same endless arguments on each side.
A few years later, that same person buys the iPhone 7, on iOS 10. "I love it. Battery life is easily twice what I was getting with the 6. It is now, around 8 hours of on-screen usage. This phone's battery is simply amazing." Why, one year later, that user goes ahead and updates to iOS 11. The update goes wrong, battery life decreases around 40% - let's say, from 8 to 5 hours - when updating. The user complains again. I mean, don't say anything. We told you. Perhaps, a few excuses are given: "Battery health isn't what it once was. Maybe that's it. Yes, that's it. iOS Updates are generally harmless." False. Battery health wouldn't have mattered as much if you maintained the original iOS version.
iOS updates negatively impact performance and battery life. There are no exceptions, regardless of Apple's promises. It is well known that not updating is the only solution. Endlessly complaining won't fix anything. Don't complain, just, please, listen. Don't update, and you won't have any issues at all.

I never complained about performance at all. In fact to some level of extent iOS 12 is firing applications up quicker then my other SE running 9.3.5. This thread is talking about battery and not really performance.

 

[Hal~9000]

You want awesome battery life for years? Don't update. I'm, to be honest, baffled, by people who update like this: The update goes wrong, battery life decreases around 40% - let's say, from 8 to 5 hours on-screen usage - when updating, for example, the iPhone 6 to iOS 9. They complain. This discussion, therefore, takes place with the same endless arguments on each side.
A few years later, that same person buys the iPhone 7, on iOS 10. "I love it. Battery life is easily twice what I was getting with the 6. It is now, around 8 hours of on-screen usage. This phone's battery is simply amazing." Why, one year later, that user goes ahead and updates to iOS 11. The update goes wrong, battery life decreases around 40% - let's say, from 8 to 5 hours - when updating. The user complains again. I mean, don't say anything. We told you. Perhaps, a few excuses are given: "Battery health isn't what it once was. Maybe that's it. Yes, that's it. iOS Updates are generally harmless." False. Battery health wouldn't have mattered as much if you maintained the original iOS version.
iOS updates negatively impact performance and battery life. There are no exceptions, regardless of Apple's promises. It is well known that not updating is the only solution. Endlessly complaining won't fix anything. Don't complain, just, please, listen. Don't update, and you won't have any issues at all.

Good post. I feel the same on this issue and so my 8+ and 10.5 iPP will most likely be staying on iOS 11.4.1 forever in order to maintain their currently awesome battery life. I even downloaded a TVOS profile to ensure I don’t have to deal with them downloading updates on the background and then constantly nagging me to install it.

I’m not too worried about security updates so much as I’m a pretty cautious person to begin with and have never had an issue so far with an outdated OS getting hacked *knock-on-wood*

I will say though, the one issue with this method for me is when an app developer is an *** and forces users to update their iOS to continue using the app which can be VERY frustrating.

In the past I’ve had this happen before with my banking app (Chase) as well as Skype. One day I tried to log in and the app told me it would no longer work unless the app itself was updated to it’s latest version... which also just so happen to require the latest iOS version as well

 

[FeliApple]

I never complained about performance at all. In fact to some level of extent iOS 12 is firing applications up quicker then my other SE running 9.3.5. This thread is talking about battery and not really performance.

And I was talking about battery life, too. iOS 12 is apparently an exception performance-wise. It isn't - according to what I've read - an exception battery life-wise.
[doublepost=1540687800][/doublepost]

Good post. I feel the same on this issue and so my 8+ and 10.5 iPP will most likely be staying on iOS 11.4.1 forever in order to maintain their currently awesome battery life. I even downloaded a TVOS profile to ensure I don’t have to deal with them downloading updates on the background and then constantly nagging me to install it.

I’m not too worried about security updates so much as I’m a pretty cautious person to begin with and have never had an issue so far with an outdated OS getting hacked *knock-on-wood*

I will say though, the one issue with this method for me is when an app developer is an *** and forces users to update their iOS to continue using the app which can be VERY frustrating.

In the past I’ve had this happen before with my banking app (Chase) as well as Skype. One day I tried to log in and the app told me it would no longer work unless the app itself was updated to it’s latest version... which also just so happen to require the latest iOS version as well

There hasn't been any massive on-the-wild iOS virus so far. All there has been are proof-of-concepts, a few apparent hacks to persons of interest if I recall correctly (some kind of political activist I think it was), and theoretical unexploited vulnerabilities.
I am not, without a sliver of doubt, going to jeopardise my phone's performance and battery life for that.
Overall app compatibility is an entire different issue, and one that I do know about - I've wanted to download quite a few apps I wanted, but couldn't, because my iOS version is too old. I just tolerate it, but it's understandable if that bothers you.

 

[Rhino1]

There is a simple solution to all of this; charge it more regularly (I am not talking about the users who are having significant battery issues). I've been running my iOS12 SE alongside my 9.3.5 and just charge it a little more often. Towards the end of they year I will change both batteries for the reduced amount which should keep them going happily for another year or two.

 

[FeliApple]

There is a simple solution to all of this; charge it more regularly (I am not talking about the users who are having significant battery issues). I've been running my iOS12 SE alongside my 9.3.5 and just charge it a little more often. Towards the end of they year I will change both batteries for the reduced amount which should keep them going happily for another year or two.

Well, yes, but that's not optimal by any means. In my experience, the reduction is significant. Around 40%.

 

[bluecoast]

You want awesome battery life for years? Don't update. I'm, to be honest, baffled, by people who update like this: The update goes wrong, battery life decreases around 40% - let's say, from 8 to 5 hours on-screen usage - when updating, for example, the iPhone 6 to iOS 9. They complain. This discussion, therefore, takes place with the same endless arguments on each side.
A few years later, that same person buys the iPhone 7, on iOS 10. "I love it. Battery life is easily twice what I was getting with the 6. It is now, around 8 hours of on-screen usage. This phone's battery is simply amazing." Why, one year later, that user goes ahead and updates to iOS 11. The update goes wrong, battery life decreases around 40% - let's say, from 8 to 5 hours - when updating. The user complains again. I mean, don't say anything. We told you. Perhaps, a few excuses are given: "Battery health isn't what it once was. Maybe that's it. Yes, that's it. iOS Updates are generally harmless." False. Battery health wouldn't have mattered as much if you maintained the original iOS version.
iOS updates negatively impact performance and battery life. There are no exceptions, regardless of Apple's promises. It is well known that not updating is the only solution. Endlessly complaining won't fix anything. Don't complain, just, please, listen. Don't update, and you won't have any issues at all.

I absolutely regret switching from iOS 10 on my 7 - it worked great. 11 was a disaster. 12 is much smoother and faster but the battery meter almost 'ticks' down like an hour glass.

I wonder though how iPhone X users are getting on with 12?

Following on from what you said, my theory is that Apple optimises their current iOS for the technologies that it's currently working on. Given that the S phones (and XR) are very much successors of the X, I suspect that the X works absolutely great with 12 - it's just that this year's phones will be a little better. At least that's my theory.

 

[FeliApple]

I absolutely regret switching from iOS 10 on my 7 - it worked great. 11 was a disaster. 12 is much smoother and faster but the battery meter almost 'ticks' down like an hour glass.

I wonder though how iPhone X users are getting on with 12?

Following on from what you said, my theory is that Apple optimises their current iOS for the technologies that it's currently working on. Given that the S phones (and XR) are very much successors of the X, I suspect that the X works absolutely great with 12 - it's just that this year's phones will be a little better. At least that's my theory.

Your experience mirrors what I saw on a friend's iPhone 7. iOS 11 wrecked the battery life. Performance seemed fine, but he tells me I'm missing out by not updating and that I'm scared without much sense or logic, so I assume he would not recognise if something is going wrong (He denies the iPad Mini 1 being crippled by iOS 9. It's nearly unusable. He says it "works fine", because he will never admit to me that it is not).
iOS 11 was the odd-one-out. Generally, the first iOS update is reasonably fine. Battery life slightly decreases and performance might not be buttery smooth, but at least, it works more or less like it should. A slight battery life decrease, some newfound lag here and there, but overall, it is generally fine. iOS 11 was awful. It decreased the battery life of the iPhone 7 by 40%, performance - according to what I've read - was not good, but I cannot really tell, as I haven't used one for an extended period of time. The few times I have tried it, it seemed more or less fine (I mean, far better than iPad Mini 1 on iOS 9 levels), but I was just browsing through the home screen and trying a few light apps here and there. I was not using it as I would use it. Overall fluidity, though, was slower than my 6s on iOS 9, whereas before, it was a tad faster. It burned through the 6s's battery, too. iOS 12 was really nice performance-wise. It restored the 7's performance back to being slightly faster than my 6s, that, considering Apple's track record, was outstanding, but battery life was further crippled. It's awful. Usage which got you 7-8 hours of battery life on iOS 10, became 5 on iOS 11, and became 3-4 on iOS 12. I could see the battery - as you have said - ticking down like a clock's seconds hand goes.
Well, leave your 7 on iOS 12 and maybe by the last iOS 12 updates the battery life issue is improved. That would be my advice.
On optimisation: I do think it is clear that Apple only optimises for the newest. Is it wrong? Yes. Can we change it, improve it, or even merely request improvements? No. (Or yes, but they don't listen). Therefore, as I said, the only solution is to never update.

"I suspect that the X works absolutely great with 12 - it's just that this year's phones will be a little better. At least that's my theory." This year's phones will be better if and when last year's phones are updated, too. My 6s is faster than the iPhone X in app launch speeds if the 6s is on iOS 9. Of course, it will be noticeably slower if updated to iOS 11 and compared side-by-side.
In my experience, overall speed improvements weren't significant if you compare all devices in Original iOS versions. Want an old one as an example? My iPod Touch 5G on iOS 6 easily rivals my 6s on iOS 9 on overall OS fluidity. Easily rivals (or even beats) my 6s on app launch speeds. Easily rivals my 6s on games performance (If and when you pair my iPod with the original version of the game and its original iOS version). I used Real Racing 3 (an old version) on my iPod Touch 5G. It was blazing fast. I tried it on my 6s on iOS 9. Blazing fast, too. I tend to notice differences, and there weren't any perceivable ones. It just worked. No frame drops on either. No lag. No crashes. We are talking about a 32-bit A5 with 512MB RAM vs a 64-bit A9 with 2 GB of RAM. No perceivable speed difference in almost every aspect.
Now, I have an iPod Touch 5G on iOS 9. It's unusable. Forget about playing Real Racing 3 fluently, if at all. It crashes a lot and lags severely (Yes, I tried).

 

[Knight3]

Your experience mirrors what I saw on a friend's iPhone 7. iOS 11 wrecked the battery life. Performance seemed fine, but he tells me I'm missing out by not updating and that I'm scared without much sense or logic, so I assume he would not recognise if something is going wrong (He denies the iPad Mini 1 being crippled by iOS 9. It's nearly unusable. He says it "works fine", because he will never admit to me that it is not).
iOS 11 was the odd-one-out. Generally, the first iOS update is reasonably fine. Battery life slightly decreases and performance might not be buttery smooth, but at least, it works more or less like it should. A slight battery life decrease, some newfound lag here and there, but overall, it is generally fine. iOS 11 was awful. It decreased the battery life of the iPhone 7 by 40%, performance - according to what I've read - was not good, but I cannot really tell, as I haven't used one for an extended period of time. The few times I have tried it, it seemed more or less fine (I mean, far better than iPad Mini 1 on iOS 9 levels), but I was just browsing through the home screen and trying a few light apps here and there. I was not using it as I would use it. Overall fluidity, though, was slower than my 6s on iOS 9, whereas before, it was a tad faster. It burned through the 6s's battery, too. iOS 12 was really nice performance-wise. It restored the 7's performance back to being slightly faster than my 6s, that, considering Apple's track record, was outstanding, but battery life was further crippled. It's awful. Usage which got you 7-8 hours of battery life on iOS 10, became 5 on iOS 11, and became 3-4 on iOS 12. I could see the battery - as you have said - ticking down like a clock's seconds hand goes.
Well, leave your 7 on iOS 12 and maybe by the last iOS 12 updates the battery life issue is improved. That would be my advice.
On optimisation: I do think it is clear that Apple only optimises for the newest. Is it wrong? Yes. Can we change it, improve it, or even merely request improvements? No. (Or yes, but they don't listen). Therefore, as I said, the only solution is to never update.

"I suspect that the X works absolutely great with 12 - it's just that this year's phones will be a little better. At least that's my theory." This year's phones will be better if and when last year's phones are updated, too. My 6s is faster than the iPhone X in app launch speeds if the 6s is on iOS 9. Of course, it will be noticeably slower if updated to iOS 11 and compared side-by-side.
In my experience, overall speed improvements weren't significant if you compare all devices in Original iOS versions. Want an old one as an example? My iPod Touch 5G on iOS 6 easily rivals my 6s on iOS 9 on overall OS fluidity. Easily rivals (or even beats) my 6s on app launch speeds. Easily rivals my 6s on games performance (If and when you pair my iPod with the original version of the game and its original iOS version). I used Real Racing 3 (an old version) on my iPod Touch 5G. It was blazing fast. I tried it on my 6s on iOS 9. Blazing fast, too. I tend to notice differences, and there weren't any perceivable ones. It just worked. No frame drops on either. No lag. No crashes. We are talking about a 32-bit A5 with 512MB RAM vs a 64-bit A9 with 2 GB of RAM. No perceivable speed difference in almost every aspect.
Now, I have an iPod Touch 5G on iOS 9. It's unusable. Forget about playing Real Racing 3 fluently, if at all. It crashes a lot and lags severely (Yes, I tried).

I agree there’s something wrong with the iOS 12 update on older iPhones but not for the same reason you believe. Apple definitely wouldn’t risk another torrent of lawsuits and scrutiny with crippling the battery life deliberately. Almost everything you say is pure speculation and confirmation bias.

I’ve faced issue with battery life with iOS 12 or 12.0.1 I’m not sure. The battery would drain continuously just while looking at the screen and doing nothing. Other times it’d drop 10-15% at a time. I took my iPhone 6s to a Genius Bar and was told the battery is fine as per the diagnostics and they refused to replace it for free as it was at 97% health.
And after leaving a scathing review of my experience with my helper, I got a call from the Manager who, after going through the usage for the 9 days prior, told me he noticed some unusual spikes in the usage. So he offered to replace it for free. Now all is back to normal. With similar usage, I’m at 50% or more after 24 hrs.

So if your theory was to hold true, I should notice the same terrible battery life which isn’t what’s happening. Also, there was at least one other user on Apple discussion forums who got his battery replaced as per my suggestion and is not perfectly happy with his battery life.

In the end, I beg you not to mislead people without all the facts or data. There’s enough of those people out there.

Here’s the link
https://discussions.apple.com/message/34052723#message34052723

And the user name is Megantic

P.S I’m not sure what in iOS caused the unusual spikes that resulted in the battery drain.

 

[FeliApple]

I agree there’s something wrong with the iOS 12 update on older iPhones but not for the same reason you believe. Apple definitely wouldn’t risk another torrent of lawsuits and scrutiny with crippling the battery life deliberately. Almost everything you say is pure speculation and confirmation bias.

I’ve faced issue with battery life with iOS 12 or 12.0.1 I’m not sure. The battery would drain continuously just while looking at the screen and doing nothing. Other times it’d drop 10-15% at a time. I took my iPhone 6s to a Genius Bar and was told the battery is fine as per the diagnostics and they refused to replace it for free as it was at 97% health.
And after leaving a scathing review of my experience with my helper, I got a call from the Manager who, after going through the usage for the 9 days prior, told me he noticed some unusual spikes in the usage. So he offered to replace it for free. Now all is back to normal. With similar usage, I’m at 50% or more after 24 hrs.

So if your theory was to hold true, I should notice the same terrible battery life which isn’t what’s happening. Also, there was at least one other user on Apple discussion forums who got his battery replaced as per my suggestion and is not perfectly happy with his battery life.

In the end, I beg you not to mislead people without all the facts or data. There’s enough of those people out there.

Here’s the link
https://discussions.apple.com/message/34052723#message34052723

And the user name is Megantic

P.S I’m not sure what in iOS caused the unusual spikes that resulted in the battery drain.

50% after 24 hours of usage says nothing. I assume you mean 24 hours of standby. How much did you use it with the screen on in those 24 hours and what for? I don't know what caused your specific issue, and I am glad you got it sorted, but I severely doubt you are getting the same battery life on iOS 12 as I am getting on iOS 9.
I am not speculating. Every single device I saw that has been updated had worse battery life and worse performance. This is no altering the facts to suit my view. I couldn't be happier if iOS Updates were positive!! Can you imagine? Being able to update everything instead of being behind in features and app compatibility? That would be really amazing. (I never update anything, regardless of how many iOS versions I am behind). I don't have a device in any iOS version newer than 9 currently, for example.
I would love to be wrong. I honestly would. It would mean, as I said, that Apple finally got iOS updates right. I could finally update without worries.
I just want to help. In my opinion, my recommendation helps. I intend no harm, I don't intend to discourage people of useful updates - but, why, that's the thing. In my experience, they aren't useful at all.

 

[Knight3]

50% after 24 hours of usage says nothing. I assume you mean 24 hours of standby. How much did you use it with the screen on in those 24 hours and what for? I don't know what caused your specific issue, and I am glad you got it sorted, but I severely doubt you are getting the same battery life on iOS 12 as I am getting on iOS 9.
I am not speculating. Every single device I saw that has been updated had worse battery life and worse performance. This is no altering the facts to suit my view. I couldn't be happier if iOS Updates were positive!! Can you imagine? Being able to update everything instead of being behind in features and app compatibility? That would be really amazing. (I never update anything, regardless of how many iOS versions I am behind). I don't have a device in any iOS version newer than 9 currently, for example.
I would love to be wrong. I honestly would. It would mean, as I said, that Apple finally got iOS updates right. I could finally update without worries.
I just want to help. In my opinion, my recommendation helps. I intend no harm, I don't intend to discourage people of useful updates - but, why, that's the thing. In my experience, they aren't useful at all.

See that’s the problem. You’re so sure about your theory that you haven’t even read my post right. I said “with the same usage” which by definition rules out standby. I usually watch videos on YouTube, Safari, forums on MR, texts, calls and emails and stuff. And 50% after 24 hours is still pretty solid and I’m fairly certain anyone saying otherwise would be a rarity.

And I believe you’re not considering the fact that newer processors are designed to perform the same task more efficiently. Now that the bionic chips have low power cores, they’re even better at conserving the battery under idle conditions.

Edit: The only solution to your situation is if Apple provided a way to downgrade if you’re not happy with your experience. But unfortunately my friend, you’re at a loss there.

 

[FeliApple]

See that’s the problem. You’re so sure about your theory that you haven’t even read my post right. I said “with the same usage” which by definition rules out standby. I usually watch videos on YouTube, Safari, forums on MR, texts, calls and emails and stuff. And 50% after 24 hours is still pretty solid and I’m fairly certain anyone saying otherwise would be a rarity.

And I believe you’re not considering the fact that newer processors are designed to perform the same task more efficiently. Now that the bionic chips have low power cores, they’re even better at conserving the battery under idle conditions.

Edit: The only solution to your situation is if Apple provided a way to downgrade if you’re not happy with your experience. But unfortunately my friend, you’re at a loss there.

I read it correctly. Being at 50% after 24 hours does not tell me if your battery life is decent or not. I need a usage statistic to accurately judge battery life. I can be at 80% after 24 hours and if the phone was in standby from 100% lying untouched for those hours, then it would be bad.
50% after 24 hours is solid... Or not. Depending on so many factors. Beginning by hours of usage with screen on, signal strength, apps used and length of time for which you used each app, etc, etc, etc. A simple 50% after 24 hours, as I said in my reply to your previous post, doesn't allow me to accurately judge battery life.
I agree wholeheartedly with your proposed solution.

 

[T Coma]

Sorry if I missed this in the thread, but what of buyers who purchased a 7 or 8 recently... all iPhones come with iOS 12 on them now, yes? Is their battery life crap from the get-go? I bought a 7 shortly before the release of iOS 11, and since it wasn't broke, I didn't "fix" it. Still running iOS 10, and I've been ignoring the upgrade nag since. I could see at least entertaining the possibility that newer operating systems work better on newer equipment, and thus are less efficient on older equipment. But have the complaints all been from upgraders or are buyers of new previous gen phones afflicted too?

 

[C DM]

Sorry if I missed this in the thread, but what of buyers who purchased a 7 or 8 recently... all iPhones come with iOS 12 on them now, yes? Is their battery life crap from the get-go? I bought a 7 shortly before the release of iOS 11, and since it wasn't broke, I didn't "fix" it. Still running iOS 10, and I've been ignoring the upgrade nag since. I could see at least entertaining the possibility that newer operating systems work better on newer equipment, and thus are less efficient on older equipment. But have the complaints all been from upgraders or are buyers of new previous gen phones afflicted too?

Don't think that battery life is crap for all or even most people with iPhone 7 or 8 devices, be they new or otherwise.

 

[poktangju]

will apple still replace the battery for $29 with battery health at 95%? i think the deal is for phones with bad battery health...i really don't want to go to the apple store. the battery life is killing me...right off the charger i've used the radio.com app for 40 mins and batter is now at 54%....so streaming while sending a cpl texts and 100 down to 54%!!! wtf...

 

[aakshey]

will apple still replace the battery for $29 with battery health at 95%? i think the deal is for phones with bad battery health...i really don't want to go to the apple store. the battery life is killing me...right off the charger i've used the radio.com app for 40 mins and batter is now at 54%....so streaming while sending a cpl texts and 100 down to 54%!!! wtf...

Which phone is this? If you’re streaming videos on full brightness on 4G on a 6s or SE then that’s probably normal on iOS 12. A fresh battery won’t help you.

It really depends on your usage and device.

It doesn’t matter whether you have a brand new 6s bought yesterday or one that’s 3 yrs old with a newly replaced battery, Apple will never allow an old device to have acceptable battery performance.

That’s why people are forced to upgrade to the latest each fall.

 

[poktangju]

Which phone is this? If you’re streaming videos on full brightness on 4G on a 6s or SE then that’s probably normal on iOS 12. A fresh battery won’t help you.

It really depends on your usage and device.

It doesn’t matter whether you have a brand new 6s bought yesterday or one that’s 3 yrs old with a newly replaced battery, Apple will never allow an old device to have acceptable battery performance.

That’s why people are forced to upgrade to the latest each fall.

no vids just streaming sound with screen off...with a few texts...i just read someone replacing battery and having better battery performance.

 

[aakshey]

Try a clean restore first. Don't restore from backup.

 

[FeliApple]

Don't think that battery life is crap for all or even most people with iPhone 7 or 8 devices, be they new or otherwise.

Updated iPhone 7? Yes. Compared to the iPhone 7 on iOS 10, they're significantly worse at best and abhorrent at worst. Unfortunately, that's what has happened since the beginning with iOS updates, and Apple shows no signs of improvement.

 

[poktangju]

Try a clean restore first. Don't restore from backup.

multiple ppl have tried clean installs with no improvement...

 

[decafjava]

Wow, so much misinformation in this thread and no, I am not talking about the people who have battery issues I mean regarding the cause and remedies of poor batteries.

 

[C DM]

Wow, so much misinformation in this thread and no, I am not talking about the people who have battery issues I mean regarding the cause and remedies of poor batteries.

What's the misinformation and why?