Hello, I have a Macbook Pro 13'', i bought it on march 2010, and today while I was charging the battery I noticed it didn't reach 100% on the indicator and it said "service battery". Then, when I disconnected the charger, the percentage reached 100% and stayed like that for about 10 minutes. Now it says 91%, and it keeps showing "service battery". I downloaded Coconutbattery to check, I attached a screenshot. I was wondering if I should take my computer to an Apple help center or get a new battery or should I ignore this and continue using this one? I really don't know much about battery life and such so I don't know what to do. Please help, Thanks!