I have bought some SNES games with battery back-up and wanted to replace the batteries. What sports games have batteries (the cheapest ones) so I can practice my soldering skills, thanks
Any of the later EA Madden, FIFA, NBA Live, and NHL games have batteries in them, and they should be extremely cheap... get the '94-'98 ones, those are sure to have battery save. The first SNES Madden and Madden '93 SNES do not.
If they're not already dead, there's not much sense in replacing them.