The upcoming iteration of Apple’s mobile operating system, iOS 18, is anticipated to include a feature that restricts the maximum battery percentage to which a device will charge. This functionality allows users to specify a charging threshold, preventing the battery from reaching 100% capacity during regular charging cycles. For example, a user might set the limit to 80%, ensuring the device stops charging once that level is attained.
Restricting battery charging to a user-defined level offers potential benefits for battery longevity. Maintaining a battery charge level between 20% and 80% is generally considered optimal for preserving battery health over the long term. This practice can mitigate the effects of chemical degradation that occur when batteries are consistently charged to full capacity and kept at that level for extended periods. Apple has previously incorporated optimized battery charging features, but this offers more user control.