Major operating system releases often introduce new capabilities, but they can occasionally cause unexpected performance quirks. Following the rollout of iOS 27, some iPhone users have reported noticeable battery drain during their daily use.

Increased power consumption after a significant system update is typically linked to background processes, including system re-indexing, app optimizations, and synchronization tasks. In most cases, these issues can be mitigated with a few practical configuration changes.

Users looking to stretch their device's runtime can turn to standard power-saving habits, such as adjusting background app refresh, managing location permissions, fine-tuning display brightness, and utilizing Low Power Mode when needed.

For the complete guide and full list of recommended steps, be sure to check the original coverage on ZDNET.