Hello everyone. I bought a Macbook in November 2006 and have been using it ever since. I don't know if I've been handling my battery the best way but I've always had it plugged in when I was near an outlet. Recently my power adapter hasn't been charging correctly. It would be plugged in but wouldn't charge or light up unless I moved the cord around. Then it would light up and charge. And since it still charged I never brought it to the Genius bar. Recently I just checked the battery cycle and it reads 683. Is this about right for 2 years or is this a bit much? Apple Profiler says the battery is in good condition. Should I be worried?