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All of the iPhone 15 and iPhone 15 Pro models feature a new battery health setting that prevents the devices from charging beyond 80% at all times when enabled, as confirmed by The Verge's Allison Johnson during a Q&A session today.

iPhone-15-Pro-Lineup-Feature.jpg

The new setting is separate from the pre-existing Optimized Battery Charging feature on iPhones, which intelligently delays charging past 80% until a more appropriate time by learning the device's daily charging routine. When the 80% hard limit is enabled, the iPhone will never charge past that point whatsoever.

On all iPhone 15 models, there are three options under Settings → Battery → Battery Health & Charging → Charging Optimization:
  • Optimized Battery Charging
  • 80% Limit
  • None
As with Optimized Battery Charging, the 80% hard limit can improve an iPhone battery's lifespan by reducing the time that the battery is fully charged.

The new setting was previously discovered in iOS 17 code by software researcher Steve Moser.

Apple says all of the iPhone 15 models have the same battery life as iPhone 14 models. The devices launch this Friday.

Article Link: iPhone 15 Models Feature New Setting to Strictly Prevent Charging Beyond 80%
I guess my Chargies just became obsolete! They lasted me all of two months lol.
 
So Apple deliberately allows me to destroy the battery on my > 2000 Euro phone, which is less than one year old, by charging it overnight. This company is becoming increasingly dislikeable to me.
 
I charge my iPhone to 100% at any opportunity I get. Never know when you need the phone at max capacity, eg. Earthquake.

I am on AC+, so I do want my battery to go below 80% so that I can get a battery replacement before AC+ is up. 😆

Anyway I support Apple giving us options. 👍🏼
 
I appreciate this for people who have issues (or are worried). I know that everyone's mileage is different. For me, on my launch day 14 Pro Max is at 100% Health with daily overnight MagSafe charging, daily plug-in CarPlay to/from work. Basically- just use it. Will I use this? Perhaps...But nice knowing its there.
Mine is at 85% and I usually have to charge it by 8pm. I love this setting becoming available, but if Apple cared at all about its customers it would have made this a software feature that works on any iPhone. There truly can’t be an iPhone with iOS17 support that couldn’t handle this update and improve the iPhone’s battery substantially. If Apple cares about the environment so much, this is probably where it could save more than all its solar farms and carbon neutral payments to offset this BS from whatever.

Problem is Apple’s Tim Cook has these initiatives but the main initiative Tim Cook cares about is his annual $100m stock grant! Eliminate the two-face-ism Tim! You have so much power. But all you care about is your money! We all know the truth. It’s a simple solution.
 
Just for info, as it seems most posters here don't keep their phones long enough to get any stats ...

I bought my iPhone 11 almost exactly four years ago. I don't use optimised charging, and charge my phone up most nights. So that's what ... almost 1,500 times.

I use the basic 5W charger as that's all I have.

"Maximum Capacity" is 81% (and easily lasts the day).
 
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Yes. Tesla recommends the same thing, 80/20, unless one really needs the full charge, which I don't on most days. I have been doing the same thing with 13 Pro Max using shortcuts. My battery health is 99%. But I'm not sure if does anything. After the 16.5.1 update, it started losing charge noticeably faster, so maybe it's just a battery lottery or iOS or both.

True, but the cost of replacing an iPhone battery is peanuts compared to a Tesla
 
Just get a new iPhone if you want this feature. Bunch of whiners and complainers lately.
 
Nope. Charge to full, smash the battery, MagSafe in the car, upgrade after a year. It made no difference on the 13 pro. The 14 pro just had a **** battery.
Well obviously this feature isn’t intended for someone like you who frequently upgrades their phone. As for someone like me who only upgrades every 4 years, I sure do welcome this feature. My 11PM is now struggling to hold charge with its battery health at 81%.
 
This feature should be on every single device that has a lithium battery. (period) That includes airpods, iPads, Macs, and all the things made by all the other companies that are not Apple.

The Windows laptops I’ve bought over the last 5 years all have a battery saver feature that keeps the battery at 60-80% max charge. The ThinkPads even let you fine tune the charge levels.
 
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About time. I have this on my gaming laptop, it’s 2 years old and battery capacity is at 100%

saying that, my iPhone 14 Pro max is about a year old, is charged every night and is at 100% health.
 
So basically al dente for iPhone. And only the 15 series because the 14 series and below aren’t important right ?
 
Start a petition and Apple will give in and allow it on all models.

For me its great because I only use about 40% of my battery a day so i don’t need 100% charge, so I can plug my phone in whenever and not worry about it charging to 100% for long periods
 
So you have to make the decision to turn it off when charging before you head out, and guess where you’d be doing this most time? Home! So keep the damn thing off.

Not necessarily.

My regular day to day is fairly predictable. I also have easy access to chargers both at home and in the office so keeping it at 80% max works fine for me. I actually dock my phone on a Qi charger while in the office so having the 80% cap is better for my usage.

When I’m on a trip to Disneyland, overseas, etc? Then just disable the 80% cap. Granted, I’ll probably still need to carry a power bank.
 
The Windows laptops I’ve bought over the last 5 years all have a battery saver feature that keeps the battery at 60-80% max charge. The ThinkPads even let you fine tune the charge levels.
Laptops, especially gaming laptops, run warm for long periods. So these settings can help.

But go into any Apple Store and you will see that all the MacBooks plugged in idle at 80% to conserve battery longevity. But this setting is not accessible by user, just a feature MacBooks implement if they are constantly left plugged in.
 
On all iPhone 15 models, there are three options under Settings → Battery → Battery Health & Charging → Charging Optimization:
  • Optimized Battery Charging
  • 80% Limit
  • None

So, does this mean that on the iPhone 15-series, if I choose the "None" option, I can charge the battery on my phone to the full 100%?
 
mine is 87% maximum capacity I have the 12 pro I am home a lot these days and charging isn't a problem yet. I suspect I eventually will go for a new phone at sometime. I mostly use my computer
 
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