Right, because everything that's sold on ebay is defective, right?

I didn't buy it from some fly-by-night private seller. I bought it from a company with over 20,000 positive feedback, and the phone itself works. Based on my findings, the battery dies at 85%, which says to me that it's defective.

And oh....the ebay seller you love to slam so much, because according to you, everything on ebay's a scam, is sending a new battery, not even charging for shipping.