I have two 3rd-party batteries for my XTi and they seem to work just fine. Maybe a little less life. I heard a lecture from a forensics engineer once and he touched on 3rd party batteries and said that the main difference is that sometimes they don't have the safety features that "real" batteries do, such as pressure-relief ports to keep the battery from exploding if pressure builds up inside.


I assume some 3rd party are better than others. Does anyone know a particular kind to stay away from?