This problem is quite familiar... it's that the battery life on the S9 plus isn't the greatest. Nothing to bad, just that once I'm done using the phone for the day, it's on 2%. and I don't know if it's an app that I downloaded or something else but it would be really nice if someone could suggest how to fix this
Have you checked your device care settings to see if a specific application is draining the battery faster than others? I would check to see if there is an app always running in the background.