Help needed!

[TheHacker32]

I've recently have gotten my eprom programmer, eprom chip and a copy of stunt race fx. I've been trying to make a starfox 2 cartridge but it's a tough start because I'm not able to get the battery soldered onto the back of the board. Is there anyone who can guide me through on making a starfox 2 cartridge?
:help:

[wiggyx]

Are you trying to solder directly to a battery?

[TheHacker32]

I was trying to solder it to the back, but I got it now, I just need the pinout if you're able to provide it