What's wrong with my galaxy A33 battery?

[Miiimii]

I bought it about 2 weeks ago and the battery keeps draining down although I don't use it much! 

Screen on time is less than 4 hours most of time scrolling or texting and it just went to 16%!

[Amira-elnagar]

Miiimii

Hello. I’m Amira, Samsung Moderator
Thank you for asking the question
We wish you a happy day
Based on your inquiry regarding the update

In general, battery performance optimization is implemented by recognizing the battery usage pattern after initial use after product purchase or operating system upgrade. During the period of learning the initial battery usage pattern, you may feel the battery draining quickly.
If the battery is continuously consumed for a long time, it may be another factor, so please check the following additionally.
When running multiple applications at the same time, playing games or applications that require high resolution and high performance, and turning on sync
Wi-Fi, Bluetooth, GPS, automatic 
The battery will drain quickly
It is recommended to optimize battery usage time by setting an adaptive battery or adding unused apps to sleep based on your usage pattern.
(Settings → Battery and device care → Battery → More battery settings → Adaptive battery on)
You can also check the battery status using an app
If you are using the Samsung Members Care function
On the phone for Samsung members, you can check the battery status yourself with the following steps
samsung Members > Get help > Interactive checks > Battery.

If you have any other question, can you explain it to us
We are  at your service always
Thanks for your time

[عجيب]

What do you mean