NOTE: You will need a
3.8mm gamebit security tool to open up any Nintendo game to replace the battery. The 3.8mm bit is also helpful to open games for cleaning.
Does your NES, SNES, or N64 game no longer save? Then replace the battery! This coin battery has solder tabs already attached. You will need a 3.8mm security game opening bit to open the cartridge and will need to solder this one in. Please see our repair guide under Repair Center (middle of the green bar on home page of our website.)
