Apple recently introduced the highly anticipated iOS 17 update earlier this week, unveiling a slew of fresh features for compatible iPhones.

The update boasts improvements in calling, messaging, FaceTime, AirDrop, and more while maintaining the familiar user interface.

However, in just the week following the iOS 17 release, concerns have arisen among iPhone users regarding battery performance, particularly on platforms like ‘X’ (Twitter).

Although this issue appears to primarily impact older iPhones, it’s not surprising, given that major OS upgrades typically demand more processing power and storage.

The Apple support page has also been inundated with complaints regarding reduced battery life with iOS 17, indicating that the company may need to address the problem with a new iOS 17.1 version in the near future.

So, what’s causing this issue, and is the battery drain solely a result of the new update? Popular tech YouTuber Marques Brownlee, also known as ‘mkbhd,’ shed light on this phenomenon in a recent Instagram reel. He explained that batteries naturally degrade over time, resulting in decreased usage capacity.

According to him, Apple has underclocked the CPU frequency to prevent iPhones from running out of power abruptly. In case users continue to face battery-related issues, they can activate the ‘Peak Performance Capability’ option, which enables performance management on their iPhones.

This means that iOS dynamically regulates the maximum performance of the CPU, GPU, and other components to prevent them from drawing more power than the battery can provide. In essence, iPhones should no longer experience unexpected shutdowns, but they may operate more slowly in certain situations.