Tablet shut down it self

[Speey2]

This week my tablet started to shut down it self. Battery normally 90 to 100 %. When it reach about 50 % plus it shuts down it self. Just after it shows battery level close to zero but when I start the tablet again it's always above 50 %. And I don't get the normal warnings anymore telling me that battery just reached 50 % etc. When tablet started again I can easily use it without charging the tablet.

What to do?

[Uliwooly]

@Speey2

I think that you need a new battery, you can contact your Local support to get it replaced or you can DIY, it will be cheaper but it will void the warranty if any