Battery questions to the community:
Is 8-9h battery life at 95% battery capacity normal - shouldn't that be 12h (13h according to Apple × 95%)?
It depends - capacity is only one determinant. How you use your phone will have a big impact - cellular or wifi? Lots of tabs open and refreshing? Mail checking a lot?
Question for battery self-replaceers: How do you prevent the 11 Pro from displaying an "Unknown component" error message under Settings - General - Info?
The problem is not the error but the component isn't registered, so if you ever g to Apple for repairs or trade in they likely will not do either.