i have a 13" mid-2012 MBP running mavericks, and today it started to give me the "service battery" message in the battery drop-down menu. before this message appeared i hadn't really noticed anything out of the ordinary with my MBP's charging tendencies (i did get a new power adapter recently, as my old one's cord frayed and it died on me). the warranty on my MBP is obviously expired so i don't really want to take it in to apple unless i have to... i checked my battery info in system information and it lists the following: i've read all different things about cycle counts and such but i still can't really understand what all this means. can i continue to use my mac with the battery as it is if it says "service battery" or will it die on me if i don't do anything about this? what is a "normal" or good charge capacity/charge remaining number, and how does mine compare?