Phone battery draining even when on charge

[Khanage1]

My Fold5 is battery level is dropping despite being on charge when I have hot-spot on, it used to go up instead of down with hot-spot on with the same charger. Is there a way to test, should I send to Samsung? 

[BandOfBrothers]

Run the diagnostic tool in your Samsung Members App @Khanage1 

A Samsung Service Centre can assess your phone. 

If i can be of any further help please don't hesitate to ask  😎 

[Khanage1]

Thanks!