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I know that technically this would belong on the Tech board but I think it's a big enough story to warrant EE residency.
Apple statement on the issue:
https://techcrunch.com/2017/12/20/a...ones-with-older-batteries-are-running-slower/
So if you have an older iPhone, you're probably jealous of interchangeable battery packs on Androids like I am right now. However, if your iPhone is still under warranty/AppleCare you can get that battery replaced for free. Otherwise, it's $79 plus shipping and you'll need to contact Apple via Here or going to the Apple Store for them to run diagnostics.
Apple statement on the issue:
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 gist, as it always is, is that Apple is being super petty and trying to force customers to upgrade their phones by making their old phones run slower.
As always, the answer is no. It would be beyond stupid and incredibly short-sighted for Apple to do this and, if it was actually true, would likely lead to tangles of a governmental and legal nature that no company like Apple would ever want to happen.
Instead, Apple is focusing attention on smoothing out the very high and quick peaks of power draw that can cause problems with older batteries.
https://techcrunch.com/2017/12/20/a...ones-with-older-batteries-are-running-slower/
So if you have an older iPhone, you're probably jealous of interchangeable battery packs on Androids like I am right now. However, if your iPhone is still under warranty/AppleCare you can get that battery replaced for free. Otherwise, it's $79 plus shipping and you'll need to contact Apple via Here or going to the Apple Store for them to run diagnostics.