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I find this video very helpful with settings that can improve battery life.

They lost me at closing out the apps. You don't need to do that unless it's one of the creepy apps like Facebook or Insta that keeps running in the background. There was an email response from Craig Federighi from a few years ago confirming just that.
Most of these videos are clickbait that have you turn off most functionality of what makes a smartphone smart. And unfortunately if you wanna make the most out of a battery you gotta turn off a lot of them.

If you wanna have it both ways you gotta compromise to an extent.
 
clickbait that have you turn off most functionality of what makes a smartphone smart.
? I’ve often wondered if you do all that, turn off almost every feature that is on a smartphone - particularly on an Apple phone - why did you buy it in the first place? I rarely turn much off at all, only a few things that I know I’ll never make use of. But I’d say 95% of everything remains on whatever the default setting is. And again I know I have a 13 Pro Max which has a bigger battery than the other models but I’ve never had a battery issue on any phone. That’s one reason why I buy the big ones in addition to legibility and camera. And this one has phenomenal battery performance. I use this one a lot more than my previous smaller iPhones.
 
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I just completed a Recovery Mode Restore and setup as a new device. I wa having an issue related to marking text in Safari. After I did the setup as new the issue is now gone. I don’t even remember the last time I setup an iPhone as a new device. Like you, I had the chance to clean house and not install apps I no longer are using. It does take a fair bit of time setting up an iPhone from scratch but sometimes that is what is needed to be done.
I did that so often since iOS 15 alone, personally I’m sick of it. I get that it might fix some problems, but that you basically have to is completely unnecessary. I also believe that I’m having the same issue you did, I like to select text and have it read to me, but it sometimes selects the wrong bits, flickers or doesn’t select anything at all, or even reads a text it did previously. The voices (English and German) are messed up, too. I hate iOS 15. I really do.
 
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I did that so often since iOS 15 alone, personally I’m sick of it. I get that it might fix some problems, but that you basically have to is completely unnecessary. I also believe that I’m having the same issue you did, I like to select text and have it read to me, but it sometimes selects the wrong bits, flickers or doesn’t select anything at all, or even reads a text it did previously. The voices (English and German) are messed up, too. I hate iOS 15. I really do.
I have opened a case with Apple about the text marking issue in Safari. You are not the only one who is experiencing that issue beside me. I e-mail someone at Apple and within 1 hour they were calling me back to gather logs and to be demo’s via screen share. So I suspect they will have a fix for the issue. I had not done a clean install in maybe 5 years or longer. So for me, it was good as it allowed me to do some house cleaning with my phone.

With macOS I usually do a clean install for major OS releases. I do that for house cleaning.

I completely understand your frustration and I would also be just as frustrated because we pay a lot for these phones and we should expect them to just work as advertised.

I think the hard thing for me to understand is why only some people experience some issues and others don’t. The perfect example id the storage calculation bug where it will either over report the total storage size, over report the used storage or report that the storage size is 0.

I do think trying to do a yearly major OS release is too ambitious given how long it can take to mature a OS release wher it is stable and reliable. Not to mention the affect a yearly OS release had on 3rd party apps where APIs and libraries change.
 
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I have opened a case with Apple about the text marking issue in Safari. You are not the only one who is experiencing that issue beside me. I e-mail someone at Apple and within 1 hour they were calling me back to gather logs and to be demo’s via screen share. So I suspect they will have a fix for the issue. I had not done a clean install in maybe 5 years or longer. So for me, it was good as it allowed me to do some house cleaning with my phone.

With macOS I usually do a clean install for major OS releases. I do that for house cleaning.

I completely understand your frustration and I would also be just as frustrated because we pay a lot for these phones and we should expect them to just work as advertised.

I think the hard thing for me to understand is why only some people experience some issues and others don’t. The perfect example id the storage calculation bug where it will either over report the total storage size, over report the used storage or report that the storage size is 0.

I do think trying to do a yearly major OS release is too ambitious given how long it can take to mature a OS release wher it is stable and reliable. Not to mention the affect a yearly OS release had on 3rd party apps where APIs and libraries change.
Interestingly enough, I gifted my mother an iPhone 8 for Christmas so she doesn’t have to use her 5s anymore. I use it as an iPod now sometimes, but when I looked into the storage settings, the capacity was reported as more than it actually is (16GB). So, I find this entire thing very odd.
Anyway, I 100% agree with you, it’s all strange and annoying. I hope this year will be a Snow year and Apple takes/tool the time to fix iOS, iPadOS and macOS instead of introducing too many new features (that a lot of people don’t even use, like SharePlay).
 
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I’ve noticed this on my 13 Pro max too. I’ve gone from charging it every other day to needing to charge it twice a day at times. Battery life on 15.3.1 was amazing for me, the best battery life I’ve had on my phone. 15.4 is terrible battery life wise.
Thanks for the information! I’ve been hesitant to upgrade from 15.3.1 because it has been the most stable version for me in quite a while. I’ll hold on upgrading for awhile (don’t need any of the new features in 15.4 anyway)
 
My iPad drained 80 % since Monday and I did not even touch it. It shows 100 % of "Find My". However, I have "Find My" and location services completely deactivated on this device.

I did set it up from scratch without restoring from a backup about 2 weeks ago btw
 
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For the first week following the installation of 15.4, all was good.
Performance was snappy and battery stamina actually improved on my iPhone X.
2 days ago battery stamina went to pot on my devices, especially the gen2 and 3 iPad pro 12.9s.
Then performance took a dive with longer load times for apps like notes on both tablets.( Increased RAM demand?)
It appears that safari, find my, and vpn/ad blockers are consuming more battery, as well as using more battery for background activity.
 
My iPad drained 80 % since Monday and I did not even touch it. It shows 100 % of "Find My". However, I have "Find My" and location services completely deactivated on this device.

I did set it up from scratch without restoring from a backup about 2 weeks ago btw
My seven year-old iPad Air, which is stuck on iOS12, was last charged on 15 March, and is sitting at 78%. Location Services are on, including Find My. Surely Apples knows what's causing this.
 
My seven year-old iPad Air, which is stuck on iOS12, was last charged on 15 March, and is sitting at 78%. Location Services are on, including Find My. Surely Apples knows what's causing this.
I had an issue like yours on iPhone and I did a network reset (Settings/General/Reset iPhone/Reset/Network Reset) and seemed to fix it for me. I’ve also heard a simple Reset All Settings did trick as well.
 
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Also, one thing I've noticed after updating is that 5g was shown in notifications area, even if it was off in network settings. When I clicked the 4g only option again, it's gone.
 
I've just done a Network Reset, so I'll see how it goes.
Just an update to say that this appears to have improved things… so far. Nowhere near iOS14 performance, but much better than the past month.

IMG_0410.png
 
My 13 PM battery has been crap since iOS 15.4. i used to love how my iPhone would remain cool and the battery would be an endurance champ. Now it warms up so freaking quickly whenever I use and charge it. I really hate this. It’s never been this warm no matter if I force restart it.
 
My 13 PM battery has been crap since iOS 15.4. i used to love how my iPhone would remain cool and the battery would be an endurance champ. Now it warms up so freaking quickly whenever I use and charge it. I really hate this. It’s never been this warm no matter if I force restart it.
Mine came back to normal after a few days. Try charging it at night with WiFi on and see if it improves after a night or two
 
Mine came back to normal after a few days. Try charging it at night with WiFi on and see if it improves after a night or two
I do charge with WiFi on. It seems that whenever I stream it gets warm. Whether that’s to my AirPods or vehicle Bluetooth.
 
My 13 PM battery has been crap since iOS 15.4. i used to love how my iPhone would remain cool and the battery would be an endurance champ. Now it warms up so freaking quickly whenever I use and charge it. I really hate this. It’s never been this warm no matter if I force restart it.
Have you tried the Network Reset suggested?

I tried 20 or more suggestions before that one – sometimes with interesting but useless results – this one changed things significantly, though still not back to iOS 14 levels, sadly.
 
They lost me at closing out the apps. You don't need to do that unless it's one of the creepy apps like Facebook or Insta that keeps running in the background. There was an email response from Craig Federighi from a few years ago confirming just that.
Most of these videos are clickbait that have you turn off most functionality of what makes a smartphone smart. And unfortunately if you wanna make the most out of a battery you gotta turn off a lot of them.

If you wanna have it both ways you gotta compromise to an extent.
To take it a step further, this video was utterly useless.
 
I do charge with WiFi on. It seems that whenever I stream it gets warm. Whether that’s to my AirPods or vehicle Bluetooth.
Even playing music - as I did on a real airplane NOT in airplane mode per se - caused my phone to get hot w/ iOS 15.4... (warmer than early 15.x and 14.x)
 
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