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?
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