[UPDATE: December 20, 4:34 p.m. EST] Apple has issued a statement insisting the company does not "slow down" older phones.

"Our goal is to deliver the best experience for customers, which includes overall performance and prolonging the life of their devices. Lithium-ion batteries become less capable of supplying peak current demands when in cold conditions, have a low battery charge or as they age over time, which can result in the device unexpectedly shutting down to protect its electronic components.

Last year we released a feature for iPhone 6, iPhone 6s and iPhone SE to smooth out the instantaneous peaks only when needed to prevent the device from unexpectedly shutting down during these conditions. We’ve now extended that feature to iPhone 7 with iOS 11.2, and plan to add support for other products in the future."

Many iPhone users experience a slight decrease of performance or slowdowns due to annual iOS updates over the years, and it now appears that there’s proof Apple is throttling processor speeds when a battery capacity degrades over time.

According to a report by Geekbench developer John Poole, who has documented performance for the iPhone 6S and iPhone 7 over time, he came to the conclusion that Apple’s iOS 10.2.1 and 11.2.0 updates introduce this throttling down sequence for different devices. For iOS 10.2.1, the update was designed to reduce random shutdown issues for the iPhone 6 and iPhone 6S, while iOS 11.2.0 introduces a similar process for the iPhone 7 with low capacity batteries.

Furthermore, a few Reddit users have also reported that replacing their old batteries have reset performance and CPU clock speeds back to normal, as seen in the tweet below with corresponding data before and after the battery was changed.

Apple has not provided any comments regarding this new report so far, but stay tuned for more updates.

In the meantime, share your thoughts/experiences below.

Also, Apple’s upgraded AirPods are set to launch in 2018.

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