So as I stated I just bought a Dell Inspiron 15.The first month or two I had no problems up until now. It shuts off at least once a day and I realized it is not charging. Than I see on the screen when I turn it back on it says "The AC power adapter wattage cannot be determined. The battery may not charge. Please connect a Dell 45 wac adapter or greater for the best system performance." So I have no clue what that means. Also why should there even be a problem with the charger when this is the one that came with the computer? I would appreciate it if someone can explain to me why this is happening.