Hi, thanks for reading.My iPhone 4 suffered some water damage last Thursday. I shut it off, dried it, took it apart, used a vacuum cleaner to suck out remaining water, put it in rice, etc. I reassembled the iPhone on Sunday. It sprang back to life, and I was able to use every function on it. However, there were three problems: 1. The iPhone would lose its charge about five times faster than before. 2. The iPhone started to overheat. 3. The iPhone would charge about ten times too slowly. I bought a replacement battery and installed it myself. The iPhone started up again, but the EXACT same problems (loses charge too quickly, overheating, slow to charge) persisted. I only got the phone 15 months ago, and I'm not eligible for an upgrade. Considering the phone functions perfectly when it has power, I'm thinking I only need to replace a certain part. (Maybe I'm wrong.) I don't know what that part could be, though; I only know it's not the battery. Thanks for taking the time to read this. EDIT: I apologize for not searching to see if this problem has been addressed before. I will do that now.