[a_c_s]

I have ordered many things from Seidio and it is a VERY reputable company. I would be shocked if what you got was used, but if you are concerned, contact customer service...in the meantime, since it was opened as it is, I'd give the battery a try and see what kind of performance you get...maybe they can refund you a few bucks, save you the hassle of a return, and both sides would be happy assuming performance is OK...