Apple offers an intelligent feature for optimized battery charging on iPhones that reduces thermal stress and delays battery aging. Although this feature has been around since the launch of iOS 13, not many users understand its importance and wonder how it makes a difference. In this article, we will discuss what is Optimized Battery Charging on iPhones, how it works and how to disable it when your iPhone stops charging at 80%. Let's move on and learn how to preserve battery health on an iPhone.

An iPhone has a lithium-ion battery that can charge faster, last longer and provide longer battery life in a lighter package. That said, lithium batteries also become less efficient as they age chemically. Over time, they can hold less charge, resulting in reduced battery life and reduced peak performance. With iOS 13 and later, Apple introduced a thoughtful feature, Optimized Battery Charging, which is designed to avoid battery overload and delay battery aging.

When enabled, Optimized Battery Charging will automatically delay charging beyond 80% in certain situations. The main purpose of Optimized Battery Charging is to improve the battery health of an iPhone by reducing the time your iPhone spends in a fully charged state.

Your iPhone uses on-device machine learning to learn your charging habits and routines. The Optimized Battery Charging feature is enabled by default and only activates when your iPhone predicts that it will be connected to a charger for a long time. It is worth knowing that optimized charging is only triggered in places where you tend to spend the most time, such as your home and office.