I am having this laptop for 8 months. I know have a problem with the battery. The battery meter has lost its mind. It shows 78 percent 1 hour remaining and the other minute is showing 77 percent 1 hour and 30 minutes remaining and such. Finally when it gets to 20% it is just turning off without any warning. Also i noticed that it wont charge up to 100%. Do i need another battery or a battery calibration? I never let my battery discharge fully and i can say i treat it very well... Any solutions?