My HP pavilion x360 shuts off when the battery gets low, as soon as the notification comes up saying the battery is low, after that sometime at around 9% it shuts off. It isn't becuase of the battery during becuase it still has some percentage. It doesn't fully shut down though, it just is almost in a sleep mode and the power button flashes and I can press the windows button and it flashes but I can't get the screen to turn on. I fully powered it off and tried to turn it back on but the only way I can get it to turn back on is to plug it in then power it on and it works which then I can unplug it, but once again a bit after, it will shut off again. How come this is? How can I fix it?