My phone stopped wanting to charge one day a few weeks ago with no warning. It has a very good case on it and I have not dropped it. I tried my mother's new extended battery for her S3 and her charger and it still wouldn't charge. I figured the charging port must be broke so I decided to invest in wireless charging. I found a QI wireless charger on Ebay and bought it fairly cheap. Well it worked for one day and then it stopped. Now it says it is charging, but the battery percentage keeps dropping as if it is not charging at all. I bought a new battery, but that has not helped at all. I would like to know if this is a problem with the phone or a problem with the charger. Can anyone help me?