An inquiry that reaches us after every iOS update, the device battery is draining quickly, the device has become slow, the device is heating up to a large degree even without intensive use. Some are quick to blame the new update as the reason, but there are many other reasons why you may notice that your battery drains a little faster in the days after the update. In this article, we mention some of the reasons that lead to battery drain and some problems related to this after the update to iOS 16 and how you can handle it.
Photos app in iOS 16 update
The Photos app on iPhone applies machine learning algorithms to recognize your photos and videos. It uses the processor to run these complex processes and thus consumes battery life.
And in the iOS 16 update, specifically, there's a new feature, Duplicate Photos, that uses processing on your iPhone to browse through the thousands of photos on your device and identify potential duplicates, and this process can take time and as a result drain battery power.
The more photos and videos you have, the more time it will take for the classification process to complete. As Apple suggests, the best course of action is to leave the iPhone connected to the charger overnight while connected to a Wi-Fi network. This will allow the Photos app to process your photos and videos while connected to power, which will take some strain on the battery. The process may take several days, if not weeks, depending on the size of your library.
Spotlight Search Indexing
Spotlight search on iPhone is a powerful way not only to search for apps and contacts, but also a place where you can search for content within apps, such as emails, messages, maps, photos, and more.
To provide search results for content within your apps, the iPhone needs to index all the content in all of your apps using on-device processing, which also consumes battery life. This can be a long and untracked process, but it happens in the background while you are using and charging your iPhone.
And while there's no way to keep track of the process, you might be able to make it a little easier. Under Settings -> Go to Siri & Search, you can disable Spotlight's ability to search within individual apps. And if there's an app you might not want to index, you can disable Show Content in Search to prevent iPhone from indexing that app, which can help save some battery life.
Your apps need updating
Automatic updates of apps you have installed can have an impact on battery life. Especially after a major update like iOS 16, apps still need to be updated to support new technologies and features.
In the coming days and weeks, developers will update their apps to support iOS 16 and its new features. Old apps that have not been updated during the trial periods of iOS 16 update to support the new may also cause some battery drain because they may use old tools and codes that are not compatible with the new updates.
Restarting the iPhone can solve many problems
It's always a good idea to restart your iPhone every now and then. Sometimes, after performing a major update, your iPhone may malfunction, and a simple restart can resolve it and return your battery life to normal.
Another thing to remember is that the iPhone battery, like all lithium-ion batteries, loses its capacity over time. You have. Knowing when you're due for a replacement usually depends on you, how you use it, and what you want, but if you don't want to change yourself, iOS will warn you if your battery needs to be replaced.
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My iPhone XS Max happened today and I didn't open the device now, there was a severe drain, but the battery worked. I mean, imagine all I do, I browse the settings and the battery drops five degrees and goes down strangely, knowing where this is and the battery percentage is 88, God willing, it will return to normal
iPhone 12 Pro Max, there is no battery drain, on the contrary, it is better than the first
Yes, I updated, but there is no difference in battery drain, thank God for iPhone x battery 79, but the performance is OK, thank God
4 
The first couple of days there was a battery drain with the device overheating, but then things came back to normal.
And do not forget to discover the features of the system generates battery consumption without feeling!
Most of the time these are delusions because of rumors from people or from technical websites! The idea of exchanging the battery is formed, because at this time the phobia of the battery came out in terms of damage and consumption, so you see the user keen when charging, not exceeding the number of charging cycles (myself) or charging it constantly!
In an old feature in Android devices
When it detects an application that consumes power in the background, you will receive notifications!
Unfortunately, the applications from Arab developers, I turn them, programmed in an old fashion, and I am one of the meanings of this thing, so I write a review about the problems of the application, and there is no shock response, even the applications of banks, the same topic, I mean, it is reasonable to apply a bank, all errors and problems, they cannot build others from scratch!!
I liked an application called (Word of the Day), and I swear to God that you write a review in the store or from within the application in two days, the problem will be solved and the developer will respond to you! 5 bug reports were resolved quickly, which prompted me to buy what's inside the app because of their good response!
Is there an update for the iPad Pro for ios 16 or not?
No, as far as I know, the latest update was released 15.7, and not all Pro versions, but I expect 16 to arrive soon
The iPad update hasn't been released yet
Charging the device is the same after two days of use, I mean it has not changed much after the update
Because I upload pictures from the device and the latest programs first
The hourly battery life has changed. It got longer. I was surprised when I went to sleep that the consumption did not exceed XNUMX%.
This is a good sign
Thank you for the clarification and explanation
And thanks to all
I am a mobile iPhone XNUMX Pro and it happened from the first day and I noticed a decrease in battery health from XNUMX% to XNUMX % even though the phone is new (I have had it for about XNUMX months). I didn't notice any slowdowns in the system in general but there was some heat from time to time.
Apple only re-measures the battery percentage in each update, so it is normal for the battery to decrease by 1% after the update. But I think 1% is little, God willing.
Great article, may God bless you. Does storing photos in special programs instead of camera albums reduce battery consumption, such as google photos or KeepSafe and others, and does deleting low-used programs help extend the life of the battery
Battery consumption is a temporary thing at the beginning of each update, so there is no need to change the photo application for a day or two
IPhone 12
The battery was very bad and now the situation has improved but not perfect
The problem with the YouTube app, when I leave the screen wide or turn it back in length, it wraps the screen twice
something strange 😑
iPhone 11 Pro Max
Light, but iOS 15 was better than it for the battery
IPhone 8 Plus
Battery 76%
The first two days of the update were bad
On the third day, it was back to normal, and the consumption was the same as before, I mean, it was normal
How do I replace the battery with an original one?
iphone 13 pro max
Only the first day, the battery consumption was high, but the rest of the days the battery lasts longer than before the update. I think IOS XNUMX for the battery is much better than everything after IOS XNUMX and before
Yes, I updated, but there is no difference in battery drain, thank God for iPhone x battery 79, but the performance is OK, thank God
IPhone 11 Pro Max
Updated and things are fine, there are no problems, no suspension, no hang up, no high battery drain (I don't have a snap, maybe it's more consuming for most)
Tell us - awesome
With every update, the same story haha... Factory reset is the best thing after every major update
I updated it to ios 16 as soon as it was released and did a factory reset and went back to the backup and to be safe the battery became more than great, knowing that my phone is an iPhone 11 Pro Max and I have it for more than two years and almost 9 months and the battery health is 91%
Thank you very much, an excellent and useful topic, God bless you