Replacing the batteries in a Game Boy Cartridge

[Korly]

I recently bought a used copy of Donkey Kong '94 from Funcoland.

Turns out the internal battery is dead.

I could just return it, but I don't think it'll be too easy to track down another copy of the game. Anyone know how I can fix it?

[burgundy]

I'd start by opening the cart with a small gamebit driver. It's the same one that opens all Nintendo carts.

The battery should be obvious. I don't know if its specs will be marked clearly, though. A trip to Radio Shack will probably ID it though.

I don't know how to remove the battery from the board, but I wouldn't use much force. You may have to solder on a new battery.

http://www.retro-games.co.uk/museum/repairs.htm has some details on SNES battery replacement.

[Korly]

Thanks Burg.