With the unveiling of the iPhone 15 series, Apple is bringing forth a new software feature to complement the switch to USB-C. In the recently released iOS 17 beta for developers, a source code suggests that Apple is considering allowing users to set a maximum battery charge limit for their new iPhones. This feature appears to be exclusive to the iPhone 15 series.
The functionality itself is rather straightforward: users can establish a maximum charge percentage, effectively regulating the duration their battery remains at full capacity. The aim is to extend the overall lifespan of the battery. However, this advantage does come with a trade-off, as it means not utilizing the full battery capacity. It primarily benefits individuals who tend to leave their phones charging for extended periods, such as overnight charging.
Typically, iOS presents a notification on the lock screen, indicating that your iPhone will charge to its full capacity. With this new feature enabled, it will instead provide a warning, notifying users that it will only charge up to the preset maximum level.
It’s worth noting that this approach differs from the Optimized Battery Charging feature found on certain Android devices. The Android feature maintains the battery at around 80% and tops it off just before unplugging, learning from the user’s charging behavior over time.
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