Pokemon Mystery Dungeon - Red Rescue Team Help

Hi! I was wondering if there was any way to save the game outside of Save States? I can't get to the Wonder Mail unless I can save properly.
Thanks.

If I remember, there should be an option when you go to sleep (or your cave house thing).

Yes, but, I can't save. There's a message about the battery or something. I tried searching for a solution, but they told me I needed a BIOS file. How can I get one?
By the way, I'm using VBA.

Ah, that old issue. "Internal Battery has run dry" ? It still shouldn't affect you from saving, unless it prevents you from going any further. Anyway, try going Options>Emulator>Real Time Clock and enable it. Anything else, I'd recommend you read this. Also, moved.

Okay, thanks.