2nd Gen Internal Battery?

[mischief4545]

3 questions

1)What is the internal battery?
2)Is there any way to change it?
3)My game won't save is this why?

 

[El Gofre]

A) Its a small battery inside the game which is used to create save files
B) Yes, by obtaining the correct battery and soldering equipment, and the ability to not ruin the game while soldering. If you think you're up to replacing a game part PM me and I'll dig out the links to where you can buy the correct battery and instructions on how to remove the old one.
C) Yes, that will be the problem.