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iOS 18 Introduces More Charging Limit Options on iPhone 15 Models: 85%, 90%, and 95%
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misinformation? there is no explanation on how an old iPhone 7 can be limited to 80% overnight until morning but there is no way to manually limit an iPhone 14. it's marketing. plain and simple. one extra reason to get the newest devices
What is the reasoning behind this feature not being available on older models?
We're discussing it in this very thread if you scroll through several replies.
The old method didn't work very well or reliably.
yes it did, and does. the optimized mode is based on routine. when i am in a regular work routine it always worked for me. it is simply a software toggle
Same reason why iPhone 13 doesn't get Photonic Engine even though it uses the same A15 as iPhone 14.
Or iPhone 15 gets Smart HDR 5 while iPhone 14 Pro/Max stays with Smart HDR 4. Both use A16.
Feature rationing means when existing iPhone users upgrade, they'll be wowed by a greater number of new features.
If anyone wants this for their Mac, there's an app called Al Dente that adds this, I've been using for well over a month now. A+, exceptionally well done.
Hoping this comes to Sequoia and new iPads, though.
Hoping this comes to Sequoia and new iPads, though.
Every device with a battery based on Li-Ion chemistry does this. It's battery charging 101.
Fast charging up to 80% is not as detrimental as many think. Heat and keeping the battery close to 100% (or 0% for that matter) are what kills them.
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Fast charging does produce heat though.
At the very least, all iPhones with fast-charging have the ability to completely halt, increase or slow down charging speeds. I'm not sure models without fast-charging have these capabilities.
But at least all iPhones from 11 on, including SE 2020, can slow, increase, or stop charging.
You can test this out if you have a charger with a fast-charging indicator light or display: If you wake your iPhone from its off state by plugging it into a fast-charger, it will only start fast-charging once you unlock it by typing your password.
If you don't unlock your iPhone after waking it then it will not fast-charge until it's unlocked. This means that charging is controlled digitally, by your iPhone.
Similarly, your iPhone will, at some points, completely cease to take in power if you enable the "Optimized Charging" feature that is supposed to learn when to charge to 100%: If you consistently get up at 6 AM, then your iPhone charge to 80%, then stop and only charge to 100% so that it hits 100% when you unplug it, at 6 AM.
The fact that it stops at 80% is controlled by the iPhone(the computer) and could be programmed to stop at any other number.
Your iPhone will also slow charging speeds or halt them completely if your iPhone, for any reason, starts overheating during charging. This is, again, controlled digitally.
Also, iPhones 14 Pro/Pro Max and 15/15 Plus run the exact same SoC. If you wanna argue that charging limit requires a certain amount of SoC computing power then your logic falls apart considering that 14 Pro and 15/15 Plus run the same SoC, but only 15/15 Plus (and 15 Pro/Pro Max) have charge limit.
It's a very basic feature that's only limited by choice from Apple. It's not a technical limitation.
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That is true. But if ambient temperature is not too high, the heat will dissipate quickly. Also, high charging currents will only last for maybe 30 minutes.
There are so many counter examples of iPhone stopping at some % while continuing to function and "slow charge," contrary to what the other poster claims.
Why does it matter since I bet a majority of people reading this upgrade every year… and the average person wouldn’t find or care about that setting unless it was by default on they wouldn’t use it.
Battery charging requires a well-known component called a BMS (Battery Management System). The iPhone has one, which allows to set any specific voltage limit for charging, along with built-in over-voltage and under-voltage protection.
So, what do we have since like iPhone 6? That fact, that BMS capable to do so for many years.
So, what do we have since like iPhone 6? That fact, that BMS capable to do so for many years.
Do you have evidence there are no hardware differences on the newest iPhones that would limit this to them? It’s extremely rare Apple would limit something like this purely by software. The question is if you can provide an example of Apple ever limiting a feature to the newest device without some hardware reason for it.
This means it is very possible there is hardware that’s involved in controlling this that is not available on older iPhones.
Edit: Not that those who are disagreeing will see this, but I wanted to point out that disagreeing with this does not change the fact that it is possible iPhone 15 models have hardware differences relative to previous iPhone models that constrains this feature just to them.
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AlDente for iPhone, please. I install it on every Mac with a battery, as I've dealt with replacing batteries enough times already and don't want to deal with that again!
I do no external battery management, other than optimized charging. My iPhone 13 Pro gets charged randomly but is usually charging the most all night using a MagSafe charging stand. I’ve had the phone ever since launch and am at 92% battery health.
