If you’ve been using an iPhone for a while you probably know that you can check the health of your phone’s battery by selecting an option on the Settings screen.
This battery health information basically lets you know if your battery is wearing out and needs to be replaced.
For years Apple refused to allow iOS to reset the battery health info back to “Healthy” after a new third-party battery was installed, but according to our friends at iFixit they’re now even refusing to reset the health information for genuine Apple batteries unless they’re installed by Apple authorized techs.