N64 Cartridge Battery Replacement

Nintendo 64 Save Battery Replacement

Keep your classics powered. Keep your saves alive.

Many original Nintendo 64 game cartridges rely on an internal battery to retain save data. After more than 25 years, these batteries are reaching the end of their service life, putting your saved games at risk.

The Fairy Bottle Productions Nintendo 64 Save Battery Replacement Service is designed to restore reliable battery power to your favorite cartridges using professional soldering equipment and premium replacement batteries.

Every cartridge is carefully handled, professionally serviced, and thoroughly tested before being returned.

What’s Included

• Pre-installation cartridge functionality test
• Professional removal of the original battery
• Installation of a premium replacement battery
• Verification of proper battery voltage
• Save functionality testing after installation
• Exterior cartridge cleaning
• Protective packaging for return shipment

Compatible Cartridges

Compatible with Nintendo 64 game cartridges that utilize a battery-backed SRAM save system.

Including, but not limited to:

• 1080° Snowboarding
• F-Zero X
• Harvest Moon 64
• The Legend of Zelda: Ocarina of Time
• Major League Baseball Featuring Ken Griffey Jr.
• Mario Golf
• The New Tetris
• Ogre Battle 64: Person of Lordly Caliber
• Resident Evil 2
• Super Smash Bros.
• WCW/nWo Revenge
• WWF WrestleMania 2000

Not sure if your game contains a battery? Feel free to contact us before placing your order.

Why Replace the Battery?

A fresh battery helps prevent:

• Lost save files
• Unexpected save corruption
• Battery leakage from aging cells

Replacing the battery before it completely fails helps ensure your cartridge continues to function reliably for years to come.

Turnaround Time

Most battery replacement services are completed within 1–3 business days after your cartridge is received.

Shipping Information

After placing your order, you will receive shipping instructions.

Customers are responsible for shipping their cartridges to Fairy Bottle Productions. Please package cartridges securely to prevent damage during transit.

Vintage Cartridge Disclaimer

These cartridges are now over 25 years old. While every cartridge is handled with the utmost care using professional tools and techniques, age-related wear, previous repairs, corrosion, leaking batteries, damaged pads, or degraded circuit boards may affect serviceability.

If any unexpected issues are discovered before or during the repair, you will be notified promptly with photos (when appropriate) and a recommended course of action before any additional work is performed.

Please Note

This listing is for the battery replacement service only.

Nintendo 64 game cartridges are not included and must be supplied by the customer.

Premium replacement batteries are included in the service price.

Questions about compatibility? Feel free to contact us before placing your order—we’re always happy to help.