Hi fellow Androiders! I bought a Galaxy s4 I9500 2 months ago and I have been more than satisfied with it. But just when I was getting too proud of my little celly, the battery started turning off during videos, camera, music, and other demanding tasks... and I could only turn it back on after a couple of minutes. How can I fix my battery? is there a way? or should just simply replace it with a new one? Thanks in advance.