Hi, I found a site that has a couple of m3 gba expansion packs in stock. Being how the product is old, and the battery most likely dead, would i still be able to save my gba files using the real time save? Or is the real time save for ds only? I know that the battery can be swapped by soldering a new one, but I have no such skills. Reason I want it is for the rtc and action replay cheats for the gba. Don't really care about ds games as i have a dsi xl for that.