My Iphone 12 Pro Max does not charge while plug during the night, just maintain the charge
After I plug my Iphone 12 to charge with the fast charge 20W charger during the night, the battery maintains around 40% but does not goes to 80 with the optimized charge and slowly decrease to 38%. After 6 hours (when I woke up) I realize that the iphone does not charge.
See picture of the battery charging cycle.
This happens at least once a week.
iPhone 12 Pro Max, iOS 16