This listing is for (five - 5 pcs) sony cr 2025 BUTTON CELL 3v lithium BATTERIEs exp. / use by: 2034 (9 YEARS) 100% brand new / factory sealed! DESCRIPTION: This high-energy, button-cell lithium battery lasts longer than silver-oxide batteries and are perfect for all your medical devices personal devices including watches, keyfobs, blood sugar monitors, car remote controls, digital thermometers, toys, calculators and more. These batteries provide excellent stability for electronics while being lightweight and still having high energy output of 3 volts, almost double that of conventional batteries. Lightweight, High Voltage and High Energy Density. 9 year shelf life. Excellent Discharge Characteristics. Outstanding Temperature Characteristics. Excellent Long-Term Reliability.