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Apr 12, 2001
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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%
 

atiffarooq

macrumors 6502a
May 27, 2006
645
607
I mean, I totally get why this can’t be rolled out to older models of the iPhone, especially the iPhone 14 range as that’s so inferior to the 15.

Normal Apple BS and hopefully they make it available to those of us who won’t be getting the 15 this year.
 

Mazda 3s

macrumors 6502a
Oct 29, 2006
551
732
Good to know. My launch day iPhone 14 Pro is now down to 89% after a mixture of wireless charging in the car and overnight charging (optimized) at night (with MagSafe mostly).

I'm probably going to try to forgo wireless charging altogether when my iPhone 15 Pro Max gets here and see how that affects battery health over the next year.
 

sw1tcher

macrumors 603
Jan 6, 2004
5,885
21,224
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.

The new setting was previously discovered in iOS 17 code by software researcher Steve Moser.
So is this iPhone 15 specific or something new in iOS 17 and will be available to all who install iOS 17?

Stating "the new setting was previously discovered in iOS 17 code" gives the impression it's not iPhone 15 specific.
 

sw1tcher

macrumors 603
Jan 6, 2004
5,885
21,224
It’s not in iOS 17 as a setting for any other phone.
Hmm... so another Apple move.

Makes sense. It needed the AI neural cores on the A17 Pro for this feature.

Right, Apple?
Naw. The iPhone 15 and 15 Plus don't have the A17 Pro chip. It must be something built into the USB-C port... just like how iPhone 15 and 15 Plus can only transfer data at USB 2.0 speeds.
 
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