And every other EV maker.
The Mac has had a version of Optimized Charging that tries to automatically do this charge limiting thing with machine learning but it’s inconsistent in my experience. I’d rather have a simple setting like this.
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iPhone 15 Models Feature New Setting to Strictly Prevent Charging Beyond 80%
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The Mac has had a version of Optimized Charging that tries to automatically do this charge limiting thing with machine learning but it’s inconsistent in my experience. I’d rather have a simple setting like this.
On MR, charging your battery is a white glove affair with a stop watch and a magnifying glass, to remove the phone at the precise time.
By doing this Apple also reduces the number of batteries they have to replace under Apple Care and pushing it out getting you to extend Apple Care. Cost benefit for Apple.
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Do people really burn through their batteries for no reason? It’s a simple setting to limit charging to 80% by default but allow 100% when you want it. Then in two years, you don’t need to pay for a new battery. It doesn’t need much babysitting.
See how that can be interpreted differently?
This is not a major issue or major feature but is nice “quality of life” feature to help preserve the longevity of phone batteries for people who keep theirs for more than a year or two and who don’t really need 100% of charge every day. If that doesn’t describe you, you can move on and forget about this feature.
Why? If the concern is so great and the batteries that fragile we have bigger issues. Bubble wrapping your battery appears to be an Apple only issue atm.
The pinch “gimmick” on the Watch Series 9 is based on an accessibility feature that older Watches have. It now uses some of the improved sensors and neural engines in the S9 to do a better job of distinguishing when you are pinching. There is a reason that it is not available on older Watches.
Perhaps we will find that there is a similar hardware change that makes this feature possible on the 15s. Some have suggested that the charging circuit that runs while the phone is off is below the OS in the stack and might have been needed to be modified to support this.
Please understand that not everyone runs out of charge every day. Many of us have access to chargers during the day and keep the phones plugged in. In that case there is a benefit to keeping the charge level below about 80% to maximize the battery lifetime. On the occasional day when I am doing other things, I usually know before hand and can enable 100% charging. After a couple of years, this will usually keep the battery capacity from dropping as much.
It sounds like you have different needs and want maximum battery charge every day. This option would not be right for you. We need to remember that not everyone has the same needs as we do and may need different features on the phone. That’s OK.
The small (but consistant) battery wear is not linear. The difference in wear between 50% and 80% is much less than between 80% and 90% or 100%. 80% is a reasonable compromise between capacity and longevity. Giving too many options makes a feature like this harder for typical users to understand and make use of.
All lithium batteries lose a tiny amount of capacity with each charge. How much is lost varies for multiple reasons. One reason is by charging all of the way to 100%. As the charge gets closer to 100% the wear increases non-linearly. There is almost no wear charging to 80%, more charging to 90%, and appreciably more charging to 100%. This all happens in small increments each time you charge. Over time, this adds up and the capacity of the battery degrades.
This is a characteristic of all lithium batteries of the kind commonly used in all phones. The iphone batteries are not particulary fragile and this problem has been with us from the beginning. People have always complained that their battery capacity degrades over time. This optional feature is just one way that Apple offers if you want to slow that battery degradation.
This is most important for people who keep their phones plugged in a lot. Those people don’t need to have 100% charge because on a typical day they are only using a smaller percentage of their charge. Their problem is that their batteries are always getting charged to 100% and degrading more quickly. They could try to keep manually unplugging their phones but that requires more effort to micromanage the process. This just automates that. If the day is one where they will need more battery, the feature can be turned off.
I think the biggest problem people will have is waking up and starting the day with only 80% on the battery meter.
"How will I survive?"
🤣
"How will I survive?"
🤣
The issue isn't only "capacity", but the ability to discharge quickly. As the battery ages, its ability to give up power degrades, hence why Apple throttled some performance on earlier devices. Not being able to give enough current in a consistent manner leads to crashes and reboots - a poor user experience. Apple are much more open about this now and actually tell you in the battery health settings whether your battery supports "full performance".
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It's more than likely the USB-C charge controller gives more metrics and control over the rate of charge, state of charge and cut-off points.
Precisely measuring battery capacity when you don't fully charge is difficult and often means it's easy to lose calibration, which could lead to having more/ less actual capacity than you'd think (usually less).
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No reason not to, I paid for it and understand that it uses battery to charge it fully. (and via wireless!) Like someone upthread said, it's a consumable.
There's plenty of reason to charge to 100% every time. You never know when you'll need it and since your mobile phone works really well in an emergency situation...
I've never needed to replace a battery in a modern phone yet, and I've definitely went over the 2 year mark, even charging it to 100%.
It makes sense for you, I agree, but do remember that not everyone can charge during the day. And so what it'll make a few percentage points less on the battery -- it's a good thing to have a charged phone when you need it.
But that is exactly my point in several posts. This is a feature for people who can charge frequently. It is not for those who always need a full charge. fortunately we can each choose whether to use the feature or not. So many people have posted here claiming that this feature is pointless or wasteful because they want to always make use of 100% of the battery charge. They seem to ignore those who are saying that they don’t need to use so much charge but do appreciate an option to reduce battery wear. We should all remember that not everyone has our own usage patterns.
What Apple needs to do is calibrate the battery meter to say 0% when it’s at 15% and show 100% at 80%, while offering an option to use the lower 15% by agreeing to it in a dialog calling it Emergency Power, and offering a Turbo Charge option to use occasionally to charge to 100.
I mean, then you can preserve your battery, be fooled into thinking it’s normal, and be offered cool new Turbo and Emergency features all in one overhyped keynote.
I mean, then you can preserve your battery, be fooled into thinking it’s normal, and be offered cool new Turbo and Emergency features all in one overhyped keynote.
Opening the Case, plugging and unplugging very small cables may lead to problems later.
Interesting. I'm going to go back to what I used to do and just charge as and how I like without thinking about battery health. For me it seems the more I've tried to preserve it, the more the health declines! lol
My wife has an iPhone 12 Pro, and plugs her phone in to charge every night - leaving it overnight - and hers is still sitting on 86%!
According to what I read, yeah. With battery changes to iDevices still being major ordeals (my watch is 4 weeks out because Apple is dragging their feet), the prices going up and my limited trust in Apple’s recycling practises, I’m going to squeeze every extra month I can out of these batteries.
Yes, I know I can turn it off and on. I tend to override it if I think or know what my usage pattern will be.
It’s a bit trickier IMO with the watch - I don’t carry a charger for it outside of home (other than on holiday).
How is something they can completely ignore and never use make them upset?
The reaction to this ignorable feature is staggeringly ridiculous.
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