✅CR1616 Battery Sets perfect for GameBoy, GameBoy Color, GameBoy Advance, Nintendo NES, Super Nintendo, Sega Genesis game console, also applicable to Pokémon Emerald, Ruby, Sapphire games, perfect save battery replacement ✅CR1616 3v 16mm Lithium Batteries with solder tabs, free of mercury and cadmium, environmentally friendly, high volts and high energy density provide a good continuous discharge performance ✅CR1616 Coin Battery Size: 16 *1.6mm, perfect to replace old save battery in Game Boy Color and Game Boy Advance cartridges, come with 5 pcs, there are enough amount for use ✅3.8mm, 4.5mm and Triwing screwdrivers help you perfectly open the game cartridge, easily disassembly and installation ✅Easy Install: Open your GameBoy cartridge, carefully desolder the old battery, put in these new CR1616 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! CR1616 button cell batteries are meant to replace batteries in GameBoy, GameBoy Color, GameBoy Advance, Sega Genesis game console, Pokémon Emerald, Ruby, Sapphire games, give your game console a new lease on life, 3.8mm and 4.5mm screwdriver tool sets used to open your cartridge for easy battery replacement