iPhone 15 Models Feature New Setting to Strictly Prevent Charging Beyond 80%

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
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.

Related Forum: iPhone

Popular Stories

iOS 26

iOS 26.3 and iOS 26.4 Will Add These New Features to Your iPhone

Tuesday February 3, 2026 7:47 am PST by
We are still waiting for the iOS 26.3 Release Candidate to come out, so the first iOS 26.4 beta is likely still at least a week or two away. Following beta testing, iOS 26.4 will likely be released to the general public in March or April. Below, we have recapped known or rumored iOS 26.3 and iOS 26.4 features so far. iOS 26.3 iPhone to Android Transfer Tool iOS 26.3 makes it easier...
Apple Logo Black

Apple's Next Launch is 'Imminent'

Sunday February 1, 2026 12:31 pm PST by
The calendar has turned to February, and a new report indicates that Apple's next product launch is "imminent," in the form of new MacBook Pro models. "All signs point to an imminent launch of next-generation MacBook Pros that retain the current form factor but deliver faster chips," Bloomberg's Mark Gurman said on Sunday. "I'm told the new models — code-named J714 and J716 — are slated...
iOS 26 Home Feature

Apple Gives Final Warning to Home App Users

Tuesday February 3, 2026 8:55 am PST by
In 2022, Apple introduced a new Apple Home architecture that is "more reliable and efficient," and the deadline to upgrade and avoid issues is fast approaching. In an email this week, Apple gave customers a final reminder to upgrade their Home app by February 10, 2026. Apple says users who do not upgrade may experience issues with accessories and automations, or lose access to their smart...
Aston Martin CarPlay Ultra Screen

Apple's CarPlay Ultra to Expand to These Vehicle Brands Later This Year

Sunday February 1, 2026 10:08 am PST by
Last year, Apple launched CarPlay Ultra, the long-awaited next-generation version of its CarPlay software system for vehicles. Nearly nine months later, CarPlay Ultra is still limited to Aston Martin's latest luxury vehicles, but that should change fairly soon. In May 2025, Apple said many other vehicle brands planned to offer CarPlay Ultra, including Hyundai, Kia, and Genesis. In his Powe...
Apple Foldable Thumb

First Foldable iPhone Design Details Revealed

Monday February 2, 2026 7:19 am PST by
Apple's first foldable iPhone will feature relocated volume buttons, an all-black camera plateau, a smaller Dynamic Island, and more, according to design leaks from a known Weibo leaker. The user known as "Instant Digital" today claimed to share several key details about the design of the foldable iPhone: The volume buttons will be located on the top edge of the device, aligned to the...

Top Rated Comments

atiffarooq Avatar
31 months ago
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.
Score: 115 Votes (Like | Disagree)
netsped Avatar
31 months ago

... how is this iPhone 15 only...
It needs the new and revolutionary B(s)1 chip.
Score: 88 Votes (Like | Disagree)
Obioban Avatar
31 months ago
... how is this iPhone 15 only...
Score: 87 Votes (Like | Disagree)
Franjelisco Avatar
31 months ago
Why is this limited to the new models only? Given the OS is capable of stopping charging when it's overheating, comes in contact with liquid etc. since iPhone 6-7
Score: 72 Votes (Like | Disagree)
GDF Avatar
31 months ago
What is the point of any battery if charging past 80% causes excessive wear and tear. Same with EV’s. Just plain dump. I want the full capacity always, so develop battery technology that does that.
Score: 58 Votes (Like | Disagree)
JRoDDz Avatar
31 months ago
So you are basically throwing away 20% of your charge life for some extra charge cycles a few years down the road? I don't get it.
Score: 49 Votes (Like | Disagree)