CR2032 Battery perfect for NES, SNES N64 and Super Mario RPG game save battery replacement CR2032 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 CR2032 Coin Battery Size: 20 *3.2mm, perfect to replace old save battery in NES, SNES N64 and Super Mario RPG, 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 Safety Packaging: Each battery is individually packaged to avoid mutual interference and ensure maximum safety and stable performance Easy Install: Open your game cartridge, carefully desolder the old battery, put in these new CR2032 solder labeled button cell batteries in the correct direction, solder the wiring, then your gaming console will back to life! Tips: Horizontal mounting, during installation may need to sligh