Hi. So my M3 Perfect's battery has gone bad for years now. Luckily it can keep a charge long enough to save games, but I'm just wondering.. How common is this problem? It seems like it is a very common problem. Now for some questions regarding the issue. 1) Why does this happen so often to people? 2) Can I just replace the battery with another CR-family battery? Edit: Ugh I'm really sorry, I posted this in the wrong section. I had Flash and Emulation in 2 tabs and accidentally started the topic in this one.