Hello, im a newbie around macs, I just bought mine 3 weeks ago, and Im having problems with my battery, at first it always says Calculating until full, so I got coconutbattery, then I saw my Original Battery Capacity is 5200 mAh, and my current battery capacity was 1579, that's 30% and I think there's a problem with my battery. Anyone experienced same problems? Should I get my battery changed? or is it a bug in coconutbattery? sorry for the newbie questions, thanks for anyone who'll help me.