My Lenovo ideapad miix 310-10iby is less than 3months old, and charging was always ok (to charge to full 100%). Recently, i tried charging and the battery icon shows that the charger is connected and the icon is there - but the status says 'not charging' and remains at 18% for the whole day despite few hours of being plugged in. I tried charging with both the keyboard attached and without. please help, thanks!!