Hi! I have owned my black Macbook for about 3 months. And this 2 weeks, I noticed that it's not recharging unless the percentage is very low (abou < 50%). Right now, it's at 67% and not recharging. I have tried restarting it. And also disconnecting and reconnecting the power cable. Nothing drastic has been tried yet. Also, my batt's max capacity is very low. I bought it at about 5200 mAh, but right now, after about 10 cycles, it's at 3487 mAh!!! Is something wrong with my batt? the macbook? should i get it replaced? what should i do?