Battery issue

Is dis normal? It used to show 1 day left or 18 to 20 hours left..now it just shows 16 to 15 hours only..also battery drains pretty fast and I only get 2 hours SOT...plus I have to charge my phone 2 to 3 times daily....is dis normal? Or should I change my battery..also I bought phone last month only 🥲

Is dis normal? It used to show 1 day left or 18 to 20 hours left..now it just shows 16 to 15 hours only..also battery drains pretty fast and I only get 2 hours SOT...plus I have to charge my phone 2 to 3 times daily....is dis normal? Or should I change my battery..also I bought phone last month only 🥲