iOS 12.1 extends battery performance management feature to iPhone 8, iPhone 8 Plus and iPhone X
iPhone Battery Health explained: How you can control it
How to Disable Apple's Performance Management Features in Older iPhones in the iOS 11.3 Beta - MacRumors
iPhone Battery Health explained: How you can control it
How to Disable iPhone Performance Management: 8 Steps
How to use Battery Health in iOS 11.3 to monitor and control power throttling | iMore
Request] a tweak to enable performance management without an "unexpected shutdown", it helps my battery a lot and it would be nice to have the option to toggle it on and off :
How to Disable Apple's Performance Management Features in Older iPhones in the iOS 11.3 Beta - MacRumors
International Performance Management - Apple Inc by Taylor Olsson on Prezi
iPhone Battery Message — Peak Performance… - Apple Community