I'm not sure but I bought my 1st gen 12" Retina MB when it first came out, and now as of today I noticed that it says my battery needs servicing? Anyone else have this issue? I really would hate to have my battery replaced, it's been about a year of use and already having battery issues. Sigh. I don't want to experience any downtime. Does anyone know how much it costs for them to service my battery and how long it will take? I hope they can do it the same day. I hope this issue wasn't caused by the recalled lightning cable that came with the early models. Because that's what I've been using.