just wondering, my husband has the droid eris, which he washed a couple days ago. when he got his new phone and the "return package" the envelope said to place the phone, but leave the battery, charger and any other accessories out of the envelope. we were talking about selling the battery on ebay, but he noticed that there was a red dot on the edge of the battery. knowing that most phones have a patch of something or other inside the battery compartment that changes color when you get it wet, so you cant fraudulently return it under warranty, do batteries do this as well? or does the battery always have this red dot on the edge?