I know there are battery threads, and I myself have made about three already, but I'm still lost. Anyway, I think I have a battery obsession. Anyway, was looking at system profiler, and my new (five days old) 13" full charge capacity is 5715. Is that right for a Macbook so new? Only, I read somewhere, from new it should be in the 6000's. Dunno if that's right? Regarding charging, as well. Will leaving it plugged in affect the battery? Also, am I best to charge it to full from about 30% to 100? What's best? Literally, spell it out for me what to do, I spent a heck of a load of money on this baby and want to get the most out of the battery for as long as possible. Thanks.