Is this normal?

[pizzalover21]

Without battery saver

With battery saver

[pizzalover21]

I'm using Samsung tab a9+

[Oxford]

I've had my tab A9 Plus for about a year and a half now, and when I first got it the battery was out of sight like that but over time it learned my habits and it settled down to give me about 2 days and about 10 hours of screen on time.

[meself]

My opinion is the time left is a estimate on if you dont use it heavy