From https://us.community.samsung.com/t5/A-Series-Other-Mobile/How-to-turn-off-check-background-power-use-notification/td-p/3065357 Try this: ⁃   Settings  ≻ ⁃   Apps  ≻ ⁃   Click The Icon: ⁃   Turn “Show System Apps” on  ≻ ⁃   Press OK  ≻ ⁃   Go to “Android System”  ≻ ⁃   Notifications  ≻ ⁃ Notifications  Categories  ≻ ⁃   Turn “App Consuming Battery” Off.