Hi all. I got my Macbook Pro 13" 3 days ago. After calibrating the battery, my current maximum charge/current capacity decreased from 5634 to 5396 and it also fluctuates from 5400 to 5368. Is the mAh changing constantly normal? Why did the mAh decrease after calibrating? How can I increase it to its maximum charge/maximum design capacity of 5770? Also coconut battery says my Macbook pro is 4 weeks old when I bought it on 31st May (3 days old)? this is my details: Thanks for any help!