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Running 16.5 RC PB on my iP 13. Real improvement in battery life. I'm getting twice as much SOT than i was on 16.4.1(a).
 
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iPhone 14 Pro Max 1TB. Battery life has been tanked. Barely hitting 5 Hours with 100%. Usage from 0-100%.

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iPhone 14 Pro Max 1TB. Battery life has been tanked. Barely hitting 5 Hours with 100%. Usage from 0-100%.

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Since your battery usage is so high for Safari, do you have any content blockers installed? I remember there used to be a problem on MacRumors where the website would cause my iOS devices to get really hot and drain battery really fast, but the problem was resolved once I switched content blockers (from Firefox Focus to AdGuard). I don’t know if it’s still an issue, it appears not, but here’s a thread about it:

 
I've lost multiple %s of Battery Health in the past month because of this on my 13p. Really appreciate the complete radio silence from Apple relating to the issue.

Had absolutely no problems until I upgraded to 16.4, was able to get 4-5hrs of SOT no problem.

16.5 has done nothing to improve this - perhaps even made it worse as the screenshot below is an abomination.
 

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How long do you usually charge your iPhone every ?
It varies, much of my drain is standby drain (I’m not a heavy user), and I charge it once per day, but my situation is irrelevant, both because I use it far less, and because it’s an iPhone Xʀ running iOS 12.
 
Since your battery usage is so high for Safari, do you have any content blockers installed? I remember there used to be a problem on MacRumors where the website would cause my iOS devices to get really hot and drain battery really fast, but the problem was resolved once I switched content blockers (from Firefox Focus to AdGuard). I don’t know if it’s still an issue, it appears not, but here’s a thread about it:

Thank you for your feedback 😊 🙏🏻. The only Safari Extention I have installed is Grammarly. I think it could be the 500 active tabs open on Safari causing the battery drain 🪫 . I just deleted 75 active Safari tabs. I had tabs open from September 2022. 😑🤥

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The battery lasts 24 hours. It's not too bad.
5 hours of SOT with Safari being the vast majority of the usage is abhorrent. That’s only 15 hours of standby, so standby time isn’t even high.
This is coming directly from Apple. My iPhone 14 Pro Max 1TB is nowhere close to the hours Apple is reporting. 🙄

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Thank you for your feedback 😊 🙏🏻. The only Safari Extention I have installed is Grammarly. I think it could be the 500 active tabs open on Safari causing the battery drain 🪫 . I just deleted 75 active Safari tabs. I had tabs open from September 2022. 😑🤥

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Safari is a battery hog on my phone as well, but do we know for sure if open tabs causes more drain? I have over 300 open, should I close them? 🦓🗂️🗂️
 
Thank you for your feedback 😊 🙏🏻. The only Safari Extention I have installed is Grammarly. I think it could be the 500 active tabs open on Safari causing the battery drain 🪫 . I just deleted 75 active Safari tabs. I had tabs open from September 2022. 😑🤥

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You could try a new tab group, I did that and it saved some battery. I did have 300+ tabs open in the other group. 🥲
 
This is coming directly from Apple. My iPhone 14 Pro Max 1TB is nowhere close to the hours Apple is reporting. 🙄

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In my experience, Apple’s spec is not very reachable. You need efficient settings, Wi-Fi only, and light use. Deviate from that, and you won’t get Apple spec. In fact, on some models it is practically unreachable. Try to get 11 hours on a 6s, impossible, even on iOS 9 or 10.

I have an iPhone Xʀ running iOS 12, like I said, and it is only reachable under pretty light conditions.
 
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In my experience, Apple’s spec is not very reachable. You need efficient settings, Wi-Fi only, and light use. Deviate from that, and you won’t get Apple spec. In fact, on some models it is practically unreachable. Try to get 11 hours on a 6s, impossible, even on iOS 9 or 10.

I have an iPhone Xʀ running iOS 12, like I said, and it is only reachable under pretty light conditions.

Part of the problem is that as far as I can see Apple's "specs" aren't really properly defined specifications so they are very difficult to interpret.

Apple quotes Up to 29 hours of "Video playback" and up to 25 hours of "Video playback (streamed) for the 14 Pro Max but what does that actually mean? I assume the first is watching a local file but is "(streamed)" over WiFi or mobile data? I assume WiFi but is the mobile radio turned off completely when running that test? Also how fast-moving is the video? As I understand it mpeg compression transmits an entire frame at periodic intervals but not for every frame. Most frames are encoded as the delta between that frame and the previous frame with the periodic full-frames there to make sure that if there is data loss the will get reset back to a full frame at some point so that the whole thing doesn't drift into something unintelligible. If my understanding is correct then I would have thought that fast moving action would create bigger delta frames so probably be more battery intensive compared to a video of a university lecture for instance.

Apple isn't known for its transparency but it would be nice if somewhere in a technical document Apple released far more details of the conditions and test files it uses to get to the numbers it publishes. Now I think about it I'm a bit surprised that publishing the test conditions isn't required by various advertising standards bodies so that Apple can demonstrate that the specs it publishes can be justified and aren't simply made up (which I'm sure they're not, just massaged a lot in terms of test conditions to make them look as good as possible).
 
Part of the problem is that as far as I can see Apple's "specs" aren't really properly defined specifications so they are very difficult to interpret.

Apple quotes Up to 29 hours of "Video playback" and up to 25 hours of "Video playback (streamed) for the 14 Pro Max but what does that actually mean? I assume the first is watching a local file but is "(streamed)" over WiFi or mobile data? I assume WiFi but is the mobile radio turned off completely when running that test? Also how fast-moving is the video? As I understand it mpeg compression transmits an entire frame at periodic intervals but not for every frame. Most frames are encoded as the delta between that frame and the previous frame with the periodic full-frames there to make sure that if there is data loss the will get reset back to a full frame at some point so that the whole thing doesn't drift into something unintelligible. If my understanding is correct then I would have thought that fast moving action would create bigger delta frames so probably be more battery intensive compared to a video of a university lecture for instance.

Apple isn't known for its transparency but it would be nice if somewhere in a technical document Apple released far more details of the conditions and test files it uses to get to the numbers it publishes. Now I think about it I'm a bit surprised that publishing the test conditions isn't required by various advertising standards bodies so that Apple can demonstrate that the specs it publishes can be justified and aren't simply made up (which I'm sure they're not, just massaged a lot in terms of test conditions to make them look as good as possible).
Yeah, Apple isn’t very transparent but in the end I don’t think those tests are very relevant, honestly. We as users know that battery life is highly variable: with all settings being the same, just altering brightness will change the final result; likewise, changing a couple of heavy settings whilst leaving everything else intact may have a heavy impact depending on which settings are modified. It’s just way too variable to give a number that is relevant to all users.

I have repeatedly stated that battery life is extremely consistent if you have similar settings and usage patterns, almost down to the minute. My 9.7-inch iPad Pro with my (light use) on iOS 12 gets 2h 40 min of screen-on time from 100 to 80%. That is extremely consistent. I’ve been using this device on iOS 12 for nearly 4 years and it has always been very consistent. Likewise, my iPhone Xʀ - also on iOS 12 - gets 2h 40 min 100-90% with my light use pattern. It is over 3.5 years old. It has the original battery. Battery life hasn’t deviated from that, ever. It is extremely consistent, almost down to the minute. (Obviously, you have that once-in-a-year weird issue where battery life is a little worse - or even significantly better! It has happened to me - but the next cycle comes around and it stabilizes).

That said, it’s difficult for Apple to give a number that applies to all users, and that’s because usage patterns are as varied as people. I’m sure there aren’t two users in the world that use the device in the exact same way.

Starting with iOS 12 (at least, possibly iOS 11) on iPhones and iPadOS 13 on iPads, standby time has worsened significantly, too. So that’s yet another very person-specific factor.

It’s very easy for a single user to provide their own very consistent battery life if their usage patterns are... well, stable patterns. It’s practically impossible for Apple to provide a meaningful number for everyone.

Late edit: it is very consistent if you are on the same iOS version, of course.
 
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Updated to the current beta of 16.6 and my battery issues ceased immediately. Previously I was losing at best 25% every 3hrs, since updating ive lost a total of 10% in 6 hours. I'm finally looking at more than 2-3hrs of SOT in a single charge.

Hopefully this continues.
 
Fixed my battery drain issue which was going on since updating to latest iOS on Tues. Mail was running continuously in background (both iPhone and iPad). Toggled off push mail and switched fetch to manual. Hard reset. Then toggled both back on again. Now Mail not running 24/7 in background. Battery drain improved. Result.

UPDATE: 48 hours on this definitely sorted it for me (mail running in background stopped)
 
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iPhone users say Apple's new iOS 16.5 update is RUINING their battery life​


Every flippin release people talk about this....and then all of a sudden, its stops.
My 5 cent is, keep your apps up-to-date and have a look at what is draining your battery.
 
No, with some updates batterylife and performance improve. Also depends on what device you are using.
Some point updates help relative to the same major version (i.e., say, 16.6 relative to 16.5), but whole number updates are always harmful.

Of course, how much harm they cause depends on the device, like you said.
 
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Some point updates help relative to the same major version (i.e., say, 16.6 relative to 16.5), but whole number updates are always harmful.

Of course, how much harm they cause depends on the device, like you said.
No, whole numbers aren't always harmful in terms of battery life, it depends on the device.
Iphone 12 experienced better battery-time on iOS 16 compared to iOS 15.

Some iOS releases has had a negative impact on battery life but there is many things to take into account. New features, security updates, apps that hasn't been updated and bugs are some.

What some also seem to forget is that the battery age in your phone, that has an impact and that apps that aren't up to date also can be part of the problem.

This fella does quite good battery life comparisons and also show battery degradation of the devices.

 
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No, whole numbers aren't always harmful in terms of battery life, it depends on the device.
Iphone 12 experienced better battery-time on iOS 16 compared to iOS 15.
While perhaps the first major update retains battery life, the argument is rather feeble: update far enough, and battery life will suffer. iOS 16 has been abhorrent so I’m skeptical, but if it’s not 16 it’s 17. Not much difference. Take the iPhone 6s: iOS 10 was fine, iOS 11 wasn’t. Today, it only matters for the minuscule amount of people - I’m included there - who kept iOS 10.
Some iOS releases has had a negative impact on battery life but there is many things to take into account. New features, security updates, apps that hasn't been updated and bugs are some.
Sure, it has advantages. I’ve never denied that.
What some also seem to forget is that the battery age in your phone, that has an impact and that apps that aren't up to date also can be part of the problem.
Battery health is irrelevant if the device isn’t updated.
 
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