Apple answers why people are felling their older iPhones with older batteries are running ‘slower’
Image credit: Gordon Kelly/Forbes
The rumors of Apple allegedly slowing down iPhone is finally coming to be true. Previously many iPhone users(via Reddit post) perceived that their iPhones are slowing after subsequent iOS updates. Now Apple has confirmed that they degrade the iPhone performance, but their intentions were altogether different. They did as to prolong the phone life and address the degrading battery life by throttling processor clock speed.
Recently Geekbench developer, Jhon Poole has illustrated the performance for iPhone 6s and 7. He arrived at the conclusion that iOS 10.2.1 and 11.2.0 has introduced some throttling in above-mentioned devices. iOS 10 caused some iPhone 6 and 6s random shutdown issues and this was reportedly addressed in ios 10.2.1 update. Some users on Reddit suggest slowing down and lower Geekbech scores after the update. Now the same has been observed in iPhone 7 after the iOS 11 updates.
So it’s true Apple intentionally slow down old iPhones. Proof: My iPhone 6 was bought 3years ago and recently got really slow. APP ‘CPU DasherX’ shows iPhone CPU is under clocked running at 600MHz. After a iPhone battery replacement. CPU speed resumed to factory setting 1400MHz. pic.twitter.com/pML3y0Jkp2
— Sam_Si (@sam_siruomu) December 20, 2017
Tech Crunch reached apple for a confirmation and they have virtually confirmed the findings. Here is the original post.
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.
The above reply states that older iPhones containing weak lithium-ion batteries are unable to handle peak current draws as the new batteries with more efficient processors are able to do. There is a risk of unexpected shutdown and internal component damages. The same thing happens for devices running in very cold or hot conditions.
Apple then added power management to all iPhones at the time that would “smooth out” those peaks by either capping the power available from the battery or by spreading power requests over several cycles. This is clearly shown in Poole’s charts in his post: