Battery drainage issue

If it is new , don't worry it takes approximately 2 to 3 weeks to adapt to your usage then it automatically optimized to last longer
As it is new almost every feature is running therefore it drains faster
If your phone is not new
Them try to activate battery saving mode from upper notification bar
And remember 5g drain battery faster than another feature
Also make show to put unused app in silent mode
Also secren resolution drain battery
Change it to FHD or HD

Am using s25 since april but i have observed a peculiar thing when battery level is at 25 to 30% around morning its coming full dead do i need to go for repair or replace the battery , since its snapdragon elite processor i have expected more

It is kind of tricky that when it reach 30%
The peace to go down is a little bit faster
In other words it might be possible that it drains faster after 30%
But if it is noticeable you may go to check it
Also you have to use the right charger cable and plug

Turn of location