I've reset my Silver Version so many times that it's hard to say for sure how much time I spent on it in all, though I guess, though it had to be well over 800 hours (the amount of time I've spent on Pearl). It hasn't died yet and I hope it won't. I have so many precious Pokemon on there including my Umbreon, Tyranitar, Mew, and Celebi (none of which were hacked, though the later two were 'glitched'). I guess, to be on the safe side, I should clone my precious Pokemon and have some back-ups stored in my Pokemon Stadium 2 N64 Box. Of course, if my save file did vanish and I replaced the internal battery, I would have to capture at least 150 Pokemon before I could withdraw them...