I have the same issue here. The model is clearly labelled as a 522 (on the sticker) but on the same sticker it mentions the 3-cell battery rather than the 6-cell. And upon further investigation, the resolution is also incorrect. I bought mine from an independent seller on Amazon so hopefully I'll be able to get it replaced.
It's weird because this model isn't given a mention on Wikipedia - the only 522 mentioned is the one with the 720p display and larger battery.http://en.wikipedia.org/wiki/Acer_aspire_one