20x CR2032 Tabbed Batteries (Surface Mount). SNES/NES CR2032. 10x SNES 10x GB 20x GBA. 25x SNES 20x GB 20x GBA. 50x SNES 30x GB 30x GBA. 75x SNES 80x GB 60x GBA. You will need a soldering iron, fresh solder (reusing 20 year old solder or just using tape will likely not work), and many other tools may be helpful.
Game Boy Save / Game Battery
CR1616 Battery Holder for Gameboy Advance Color Game Card PCB Board, CR1616 Battery Holder Tray for GB GBA GBC (6PCS) : Video Games
GB] Wario Land failing to load
Installed some battery holders. No more biyearly soldering to Pokemon Crystal. : r/Gameboy
Game Boy CR2032 CR2025 to CR1616 Tab Battery Holder Replacement for SRAM Battery
20x CR2032 Tabbed Batteries (Surface Mount). SNES/NES CR2032. 10x SNES 10x GB 20x GBA. 25x SNES 20x GB 20x GBA. 50x SNES 30x GB 30x GBA. 75x SNES 80x
20 Replacement Battery - Game Boy, Gameboy Color CR2032 Tabbed Tab GB GBC US
Gameboy Cartridge Battery
5x Wama CR1616 Button Cell Batteries Tabs 3V 2 Feet Welding Solder Pins 50mAh 1616 ECR1616 LM1616 Coin battery - AliExpress
Tpu Gamepad Protective Case, Game Boy Color Accessories
Color: Yellow+silver. Size: About 20x3.2mm/0.79x0.13.
Game Boy Save Battery CR2032 with Solder Tabs 3V Battery 20-100X US New