✅12 Pack CR2025 Battery Sets perfect for Emerald, Sapphire, Ruby, Silver, NES, SNES, Gameboy and Sega Genesis game save battery replacement ✅CR2025 3v 20mm Lithium Batteries with solder tabs, free of mercury and cadmium, environmentally friendly, high volts and high energy density provide a good continuous discharge performance ✅CR2025 Coin Battery Size: 20 *2.5mm, perfect to replace old "save battery" in NES and SNES cartridges, come with 12 pcs, there are enough spare amount for future use ✅Easy Install: Open your NES/ SNES cartridge, carefully desolder the old battery, put in these new CR2025 solder labeled button cell batteries in the correct direction, solder the wiring, then your gaming console will back to life! ✅Safety Packaging: Each battery is individually packaged to avoid mutual interference and ensure maximum safety and stable performance ✅Tips: Horizontal mounting, during installation may need to slightly bend the tabs a little to make the battery fit better. Please check the battery model before purchasing it! 12 Pack CR2025 Battery Sets with solder tabs, free of mercury and cadmium, environmentally friendly, high volts and high energy density perfect for Emerald, Sapphire, Ruby and Silver, NES, SNES and Sega Genesis game save battery replacement