The technology exists it’s called hydrocarbons and a generator or internal combustion engine.
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iPhone 15 Models Feature New Setting to Strictly Prevent Charging Beyond 80%
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That is exactly why I use AlDente on my MBA. It lets me set the charge rate and know it will stay there until I change it. The automated way never did go below 100% for me for months.
Due to how lithium batteries work there is an inherent increased risk of capacity loss from charging to 100% on a consistent basis. By setting your maximum charge rate to 80% you avoid that “danger zone”. If you need 100% of your battery’all charge every day this won’t work for you but if, most days, you only use less than 80% it doesn’t inconvenience you and you can still switch it 100% on days when you expect to need more.
Most days I have charging available at multiple points of the day and can top off when it gets a little low. I rarely need the full capacity of the battery but I appreciate being able to preserve that capacity for when I need it.
I know people are (rightfully) upset that this seems like an iPhone 15 only feature, but keep in mind the iPhone 15 isn't even out yet. It wouldn't surprise me if they push a software update to bring this to all iPhone models.
It does make me worried though that maybe the iPhone 15's battery degraded a lot in testing.
It does make me worried though that maybe the iPhone 15's battery degraded a lot in testing.
I thought they let you replace the battery any time you want. The 80% is just to get a new battery under warranty.
I'd say that is just normal battery degradation. I do not believe it has anything to do with your battery charging habits.
Absolutely! But do you need that full 100% every single day or just on some days? This setting lets you preserve your battery’s long term health on days when you only need part of your battery’s capacity. On days when you need the whole capacity, you can switch it to 100%.
How in the heck are you still at 100% capacity?! You must have excellent charging habits such as 80% rule and never allowing the battery to fall below 40%. Just for comparison, my launch day iPhone 14 Pro Max is at 91%.
It does make a difference. Both in homes and cars. I expect more wireless chargers to have fans to dissipate heat.
Do you have a link for this? Or a technical study? I mean I always knew it was like this but never thought the difference was that huge.
Me to. My Macbook Air is running at 70% all day without any use of the battery. Instantly paid for the pro version.
Fast charging doesn't hurt per se, as long as the battery isn't getting hot. Normally an iPhone will only use really fast charging up until about 50% charge, then it slows down to prevent heating.
I absolutely love this new option. Simply because it means I can have my 15 Pro Max on the wireless desk charger all day without having to worry about the battery. Just ideally to use electricty for normal standby stuff instead of battery cycles. This way those cycle are still available for when I need them.
Obvious answer. To force you into buying their new phones to access the gate-kept feature. It can easily be enabled on the OS for older devices but that would be a missed opportunity to take peoples money.
Yes and it sounds like this is not something that would work for you. Great. Some of us can more easily estimate whether we are going to need more capacity on a given day such as traveling or being out running errands vs going to work and sitting at a desk where the phone can be plugged in. If this doesn’t work for you, you don’t need to use it but it will help many of us.
And why is PI 3.14? Just round the damned thing to 3 and be done with it. Sheesh!
that may be the Optimized Charging feature that Apple introduced a couple of years ago on Macs and iPhones. It is supposed to observe your usage patterns and automatically adjust the charge level based on your usage. For many people that works but for some of us it doesn’t. This explicit 80% setting is simpler and should be more reliable for those of us that keep our devices and don’t always need 100% every day.
I haven’t seen any way to keep the charge level on an iPad below 100% in any recent OS.
This feels the same as keeping the plastic on your new sofa.
Maybe Apple could deign provide some rationale behind this?
why 80 % ? is it to placate the 20/80 conspiracy theorists ? are they right?
why 80 ? why not 90 or 95 ?
And other questions?
What is the variability between batteries? are they all created equal?
With hundred millions of iPhones of each generation in the wild, sending stats to Apple, can't they know the impact of different charging and use behavior? of magsafe vs wired? slow charging vs fast charging?
What even is the point of optimized charging? why adding the 80% limit? why now?
why 80 % ? is it to placate the 20/80 conspiracy theorists ? are they right?
why 80 ? why not 90 or 95 ?
And other questions?
What is the variability between batteries? are they all created equal?
With hundred millions of iPhones of each generation in the wild, sending stats to Apple, can't they know the impact of different charging and use behavior? of magsafe vs wired? slow charging vs fast charging?
What even is the point of optimized charging? why adding the 80% limit? why now?
I’m positive that ditching MagSafe would get the battery degradation lower. I use Anker MagSafe charger in the car, and my 14PM gets quite hot while running CarPlay etc. Wouldn’t be surprised that since iPhone 14 is apparently notorious for dropping quicker compared to earlier models, that it is in some part due to more and more people wireless charging?
It's Apple controlled. Not saying this is the same feature, but it's clear iPadOS can limit charge regardless of Lightning or USB-C.
About iPad and iPhone charge-management feature - Apple Support
iPadOS and iOS include a charge-management feature to maintain battery health when iPad or iPhone XS, iPhone XS Max, iPhone XR, or later is connected to power for prolonged periods of time.
If you don't want to read, think of it this way: When parking your car do you pull in at 100mph or 10mph and how close to the other cars or fence do you get? And Why? Basically the same principles at work, the electrons/ions are the cars and the battery is where they park.