Apple’s iOS 18 update introduces a range of new features designed to improve battery health and user convenience for iPhone 15 and iPhone 16 users. The standout feature is the new customizable charging limit options, which allow users to set their devices to charge up to 80%, 85%, 90%, or 95%.

This enhancement aims to prolong battery lifespan by reducing the time iPhones spend fully charged, which can contribute to battery degradation over time. The update is particularly useful for users who frequently leave their devices plugged in for extended periods, as it helps mitigate the wear and tear associated with keeping a battery at full capacity.

Additionally, iOS 18 includes a proactive recommendation system that analyzes individual usage patterns and suggests an optimal charging limit based on how the device is used. This feature appears in the Settings app under Battery → Charging and is designed to guide users in managing their battery health more effectively.

Another significant addition is the slow charger warning system. This feature alerts users when their device is being charged with a slower-than-ideal charger, indicated by an orange color on the battery level graph and a warning message if slow charging continues for a certain period. This is particularly beneficial for those using older or less efficient chargers, as it can help identify and address issues that might be affecting charging speed and overall device performance.

These updates are exclusive to the iPhone 15 and iPhone 16 models, leaving users of older iPhone models without access to these new features. The iOS 18 enhancements aim to offer more control over battery management and ensure that users can maintain their devices’ battery health and performance over time.