My computer has started acting up. When I plug in my charger, it takes about 5 hours for the computer to detect that the charger is plugged in. On top of that when I run diagnostics, it tells me that there's an issue with my battery- when in OSX, it tells me it's in normal condition. It isn't the charger. Is this an issue with my logic board, battery, or MagSafe board? Thanks in advance.