It happened to me. I was concerned as we had a 13" Air back in the summer that came with almost 100%. There was another thread with people saying the same thing. What are you gonna do? Use it, and re-evaluate at day 13. I had some other wonky things happening with the software, so I returned for another 11". Same thing, zero % battery. Charged it, and it seems fine. Its been 9 days so far, doesn't seem to be an issue. I conclude mine is fine. Use it. Enjoy.