My Milonta Dynax 300Si 35MM SLR went dead while I had kept idle for 3\nmonths. I replaced a new battery, which lasted for only one roll. Again\nI replaced new battery, this time it did not last even for one roll.\nNow I am scared if I need to feed that. I understand and have previous\nexperience, battery lasts for many rolls. any idea what could be wrong.\nI have never dropped the camera nor misused. I doubt if I will get\nproper repair shop for manual SLR in my locality. If anyone can suggest\n"do it yourself" idea that will be more than welcome.