Post originale di: iGuys ,
Could be a number of things, but most likely you're dealing with a faulty part. From my experience as a repair tech, aftermarket iPhone batteries have a rather high defective rate. On a side not, I would not recommend using hydrogen peroxide as a cleaning agent for sensitive electronics like this. Using legitimate electronics contact cleaner is the best way to go, but most people don't have that laying around the house. Most people do have 70% isopropyl though, and that will do just find in most cases.