So its not the old ...charge it up all the way and run it down thing that we used to have to do with batteries?Go to the Apple support area and search for battery.
Really the best thing you can do is not to run it all the way down before recharging. (It doesn't have a memory.) And never leave it in a hot or cold car.
Yeah that stuff about conditioning batteries was leftover from the old NiCad days. Li-Ions have been in use for quite a few years. But somewhere along the way, probably about the time NiCads were going out of style, people started getting the idea of conditioning the battery.That's not good for Li-Ion cells from what I've seen published.