I'm looking to buy another battery for my Eris on ebay... I was looking specifically for HTC batteries that hold more than the 1750 mAh one.... my question is... if I am looking for a random battery that has a good chance of working on and fitting in my eris what specs should I look for? What size? Any other things I need to be careful about? I have absolutely no idea how batteries work, but I have read all the threads about better batteries for the eris. Now I want to buy one. Thanks for the help.