Why won’t my phone hold a charge
Why won’t my hold a charge for very long?
iPhone XR, iOS 16
Question marked as
If the link in blue above does not help, it is possible that your battery is dying. The typical Apple Battery lasts about 2 years with normal use. You should make an appointment at the nearest Apple Store for possible Battery replacement.
Apple Store - Find a Store - Apple
Also take a look at this link...