How to Take Out a Cell Battery from an N64 Cartridge for Save Game Restoration
To replace the battery in a Nintendo 64 cartridge, use a 3.8mm game bit screwdriver to open the cartridge. Remove the RF shield. Find the old battery and desolder its tabs. Install a new CR2025 or CR2032 battery. Solder the new battery in place. Ensure all connections are tight for the best game saving performance. … Read more