Question Laptop Shuts down suddenly even at full battery

[Aditya2365]

-Laptop Shuts down suddenly even at 90% battery but works fine when I plug the charger in (it goes to 0% and starts charging up again) . Laptop- Mi Notebook 14 , 8 gb ram, Windows 11

 

[Etrius vanRandr]

-Laptop Shuts down suddenly even at 90% battery but works fine when I plug the charger in (it goes to 0% and starts charging up again) . Laptop- Mi Notebook 14 , 8 gb ram, Windows 11

Battery is completely dead and needs replacement