I'm having my 2015 Macbook Pro repaired (water damage)-- repair shop informed me that the battery needs to be replaced. Great. Another $50 in labor and the cost of a new battery. I was looking around and I came across this one http://www.ebay.com/itm/182354998324?ul_noapp=true Contacted the seller to ask what happened to the laptop it was pulled from and they told me that it won't turn on, but they don't know why. I'd usually think the seller was hiding something, but it's just a tech recycle shop, so I think they're likely telling the truth. (?) Anywho. The photos show pretty decent images, and I'm wondering if the chip on it looks corroded or if that's just me thinking that it may? I realize that even if it looks ok, it might not work, but still wanted to grab some opinions. Since there's oddly not a repair section on this forum, I guess the next correct forum would be buying advice? Since this technically is buying advice. Thank you.