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FeliApple

macrumors 68040
Apr 8, 2015
3,684
2,088
IDK.. seems like there were lots of batt life/overheating complaints when the iPhone15 first came out - those seem to have diminished with recent versions. Actually with 17.1, I’m starting to see more posts actually exceeding extrapolated 50%+ of Apple ‘up to’ SoT spec. Lol, and we both know how hard that is to achieve these days.
It may be possible, too. As far as I’ve seen (and tried!), there has been a pretty odd phenomenon recently. It seems like iOS 11 was utterly abhorrent for everything (people were complaining with the iPhone 7 and the 10.5-inch iPad Pro left and right, battery was obliterated, performance was pathetic). Apple focused on performance by iOS 12, and while it still destroyed the early devices (like the Air 1 and iPhone 6), it was much better for newer devices as far as performance goes. While battery life has been severely reduced by iOS 12, it isn’t abhorrent (my 9.7-inch iPad Pro is 25% worse on iOS 12 when compared to iOS 9. Poor? Yes. But nowhere near newer versions). iPadOS and iOS 13 went back to the iOS 11 phenomenon, obliterating everything. The 6s is horrible on iOS 13 (I have one), 1st-gen iPad Pro users widely note iPadOS 13 as the beginning of the end (which is why I’m partially happy that I was able to keep mine on iOS 12, even if I’d rather have it on iOS 9).

Here, something changed. iOS 14 and 15 were good for many devices. I’ve tried an iPhone 8 on iOS 14, an iPhone 11 on iOS 15, and while older devices are never salvageable (the iPhone 6s is unusable on iOS 15, far worse than iOS 13, as poor as that is), newer devices didn’t suffer as much.

iOS and iPadOS 16 went back to complete obliteration.

It seems like there’s a bit of a back-and-forth between significant degradation, but a degradation which allows some form of usability (no update will be better than the original version. iOS 12 may have been decent and way better than iOS 11, but on A9 and A10 devices is nowhere near iOS 9 and 10 respectively), and the next version seems to regress, come running like an earthquake and just completely destroy everything in its path that isn’t the original device for that version.

iOS 17 for older devices seems like the continuation of iOS 16’s degradation. Hopefully later versions make it better for those devices. I have no doubts that Apple will improve iOS 17 for new devices as time goes by. Even iOS 11 - which was a complete disaster for everything - had improved by iOS 11.4. So I’m not surprised that it’s improving for the 15 series, and furthermore, I’m expecting it to improve as versions go by.

Long-term users may be better off just updating once to the latest minor version of the original iOS version, especially when, like you said, the original release turns out to be a little flaky, instead of doing what I do and just avoiding the update button altogether regardless of the minor version I’m in.

Of note, however, is that every iOS device I have is at a .3 version at least. I don’t have many, but still.
 

PhillyGuy72

macrumors 68040
Sep 13, 2014
3,073
4,650
Philadelphia, PA USA
I feared this..my 13 Pro Max battery drain really improved on 17.1 compared to 17.0.3, the drain was bad on that release.

17.1.1 was installed yesterday, that drain is back, but worse! I think the "indexing" has finished..who knows anymore.:rolleyes:

I'lll see if this is improved tomorrow.
 
  • Wow
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kristof461

macrumors regular
Oct 4, 2023
205
66
I feared this..my 13 Pro Max battery drain really improved on 17.1 compared to 17.0.3, the drain was bad on that release.

17.1.1 was installed yesterday, that drain is back, but worse! I think the "indexing" has finished..who knows anymore.:rolleyes:

I'lll see if this is improved tomorrow.
oh my…
 

prefuse07

Suspended
Jan 27, 2020
895
1,073
San Francisco, CA
I feared this..my 13 Pro Max battery drain really improved on 17.1 compared to 17.0.3, the drain was bad on that release.

17.1.1 was installed yesterday, that drain is back, but worse! I think the "indexing" has finished..who knows anymore.:rolleyes:

I'lll see if this is improved tomorrow.

This is hilarious!

17.0.3 gave me better battery life than 17.1 does (17.0.3 was closer to iOS16).
 
  • Haha
Reactions: Mistletoe66

kristof461

macrumors regular
Oct 4, 2023
205
66
iOS 17 and watchOS 10 are big disappointment. After Sunday's restore I was saying that battery is better than before. Not that great like people say sometimes but still simple math give 8-9h on my iP15 Pro. On 4G/LTE probably 1,5h less. Still great. The only problem was night draining. Not that big deal because mostly I am charging my phone during the night. Anyway two days ago it drained 10% at night. Today only 6%. Great...well unfortunately during the day it is not that great as it was yesterday and the day before.
And still wifi at work drains way more battery than wifi at home. I fell like wifi at work works like LTE/4G. Same battery draining.
It is so frustrating but of course I fell what people with even worse battery life can feel right now. Yes it is not most important thing in the world but still it is a pain in the we know what.
 
Last edited:

Hyloba

macrumors 6502
Sep 30, 2014
395
234
I have to write here as well. I got my 15 pro a month ago battery life was ok. I would end the day with about 30-40% left. A bit better than my 11 pro which just got a battery replacement.
However today, I noticed unbelievable battery life, with ios 17.1.1. It’s 10 pm now and normally that would nearly be end of day for me, and I’m still at 66% battery life. I don’t understand how it is this good all of a sudden, that’s approximately double the battery life. This is the way it should always have been and at least for this day I am extremely happy. We’ll see how the next days fare.
 

kavuky

macrumors member
Oct 17, 2018
67
23
IMG_1276.png



I have a 15 Pro, why do I have such a long idle screen time?

I have the always-on display turned off
 

kristof461

macrumors regular
Oct 4, 2023
205
66
I have to write here as well. I got my 15 pro a month ago battery life was ok. I would end the day with about 30-40% left. A bit better than my 11 pro which just got a battery replacement.
However today, I noticed unbelievable battery life, with ios 17.1.1. It’s 10 pm now and normally that would nearly be end of day for me, and I’m still at 66% battery life. I don’t understand how it is this good all of a sudden, that’s approximately double the battery life. This is the way it should always have been and at least for this day I am extremely happy. We’ll see how the next days fare.
One day it is good the other day it could be bad. No one knows. This is so frustrating. Of course I hope that 17.1.1 really helps most of us.
 

supermars

macrumors member
Dec 1, 2015
58
30
My Iphone 15 pro max iOS 17.1.1 : 8,5-9,5h battery life, a friend's iPhone 15 pro max iOS 17.1 : 8,5-9,5h :-//
Both of them : light use, maybe very light, "normal" brightness, so in one word : TERRIBLE
 

kristof461

macrumors regular
Oct 4, 2023
205
66
When I don’t use my iPhone it is very good ;) but I can only touch it and I clearly see that battery performances way worse than before. I don’t get it. It is not that bad. It is not 2-3h but on 4g/lte I think it could be 5-5,5h. Yesterday during car ride I lost 4-5% during 8 minutes phone call. On WiFi it is pretty fine. So Apple has to improve cellular consumption.
 
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vince085

macrumors regular
Apr 26, 2016
117
121
I agree, the problem is with cellular, almost half of the battery time going from Wifi.
Disabling 5G doesn’t improve things too much..

Screen-on time with WiFi: 10-12h
Screen-on with LTE/5G: 4-6h.

15PM 17.1 -> 17.2 beta 2 same results on all versions in between
 
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kristof461

macrumors regular
Oct 4, 2023
205
66
I agree, the problem is with cellular, almost half of the battery time going from Wifi.
Disabling 5G doesn’t improve things too much..

Screen-on time with WiFi: 10-12h
Screen-on with LTE/5G: 4-6h.

15PM 17.1 -> 17.2 beta 2 same results on all versions in between
Exactly. Turning on 4G/lte what I do every time doesn’t change anything. It is not SIM card issue too. It started happening suddenly on iOS 17 and even worse on 17.1. That’s why I think 15 pro has so bad review. Because of a software.
 

Fantasigraphic

macrumors 65816
Mar 25, 2009
1,474
275
TN
You guys try doing a Network Reset (Settings>General>Reset iPhone>Reset Network Settings) and see if it helps with battery drain…

Granted, you’ll have to enter your WiFi password again
 

James6s

macrumors 65816
Sep 22, 2015
1,015
1,942
Cumbria, UK
First day on 17.2 beta 3, pretty good I think! Mix of WiFi & mobile data. Not a heavy usage day though. 14PM.
 

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