KGI said back in October of last year it was likely that Apple would bring Face ID to all three of this year's new iPhone models, and this is supported by two new supply-chain reports today. The iPhone maker had alongside announcing the iOS 11.3 last month. To enable this feature, the user needs to go into - Settings Battery Battery Health (Beta). Once accessed, it a feature called Maximum Capacity that allows you to see the maximum capacity of your iPhone's battery relative to when it was new.
According to Apple, the iPhone's battery is created to retain up to 80 percent of its original capacity at 500 complete charge cycles, so if the full charge capacity is less than 80 percent of the design capacity, or the recharge cycles exceed 500, then your battery is considered worn. There you will see your battery's current health, as well as a description of how its health impacts performance.
Compare the number that the app pulls up with what your iPhone's CPU speed should be (you can get this information by doing a quick search online - I find Wikipedia to be a good resource), and if the numbers match up, your iPhone isn't being throttled (as is the case with my old iPhone 6 Plus).
After "confirming" through the official Apple page that iPhones 8, 8 Plus and X would not receive the ability to disable or enable performance reduction in iOS 11.3, we were a little more relieved - but there was still "confirmation" that such units will not be affected in the future. It's offering out-of-warranty replacement batteries for $29 to anyone with an iPhone 6 or later until the end of 2018, regardless of whether they have experienced performance issues. The impacts of performance management may be less notable on iPhone 8, iPhone 8 Plus, and iPhone X. Over time, the rechargeable batteries in all iPhone models will degrade in their capacity and peak performance and will gradually need to be replaced. "Performance management has been applied to help prevent this from happening again". It will show a message that reads, "Your battery's health is significantly degraded".
If you've already signed up for Apple's iOS beta program - which is a relatively simple process that only requires a few steps - and just downloaded iOS 11.3, here's how you can turn off the iPhone's battery throttling feature.
The battery health related features apply to, and. This update comes with a whole new host of features to use, play around with, and test.