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Following the recent release of iOS 17 RC by Apple to developers and beta testers, 9to5Mac uncovered intriguing code references hinting at a novel feature aimed at preserving iPhone battery longevity—an option to restrict maximum battery charge to 80%. As some fortunate individuals already possess the coveted iPhone 15, we can now affirm the existence of this particular feature on these new devices. Additionally, the iPhone 15 delivers an array of comprehensive insights into battery health, ensuring users are well-informed about their device's power source.
Novel Battery Features on the iPhone 15
As disclosed by Ray Wong on Twitter (currently recognized as X), the iPhone 15 series boasts a dedicated section that unveils intricate details regarding battery health. Users now have the ability to scrutinize crucial information, including the manufacturing date of the battery component and its initial usage date. Furthermore, detailed statistics concerning the cycle count, wherein each cycle signifies a full recharge from 0% to 100%, are readily accessible.
It is worth noting that retrieving such information on earlier iPhone models necessitated the use of third-party tools, such as the Mac-based coconut battery. However, with iOS, this invaluable battery data is seamlessly integrated, at least for users of the iPhone 15.
A Compelling New Feature: Battery Charge Limitation
The iPhone 15 introduces yet another remarkable feature pertaining to battery management—a capacity to restrict the battery charge to 80%. 9to5Mac initially unveiled this option last week, and it is now confirmed to be available to iPhone 15 owners. The rationale behind this feature is grounded in the scientific understanding that fully charging a lithium-ion battery to 100% accelerates its aging process. Consequently, users now have the opportunity to make a conscious trade-off, opting for an extended battery lifespan at the expense of a few additional hours of daily usage.
This innovative feature functions analogously to "Optimized Battery Charging," a technology that familiarizes itself with the user's daily routine and judiciously concludes the battery recharge process when the device is set to be unplugged. The new option, however, steadfastly limits the recharge to 80%, ensuring optimal battery longevity.
Exclusivity to iPhone 15: A Bitter Reality
Regrettably, both of these pioneering features are confined to the iPhone 15 series for reasons yet undisclosed. Whether Apple harbors intentions of extending these enhancements to previous iPhone models through a forthcoming software update remains uncertain.
The iPhone 15 is poised to make its debut in retail stores on Friday, September 22. Apple has also announced plans to launch these innovative smartphones in an additional 20 countries in the ensuing week.
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