laptop battery drains to 0% when powered off.Help

Batman1121

Estimable
Jun 1, 2015
15
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today when i pressed the power button to turn on my laptop it didn't turn on.When i plugged in AC power it turned on but showed battery 0% available.Also it was a little warm.This has never happened before.
How could this happen? Help.

Ps. I searched some threads with the same problem and someone wrote that installing intel xtu caused this.I too updated intel xtu yesterday.Could that be the problem?

thanks