My notebook's battery went to 0% and it required a re-charge. I did not plug it in to re-charge until the next day but now it will not turn on at all. When I plug the power adapter into my notebook and try to power on, the battery light flashes white for about 5 seconds and then does not turn on. When I plug the adapter in and do nothing, the battery light has no reaction. I have already tried holding down the power button for 15 seconds to do a hard restart but nothing has worked. Is this simply the result of a faulty adapter or my notebook itself?