The LogiLink Ultra Power Button Cell batteries are perfect for car alarm, calculator, TV remote control, watch, thermometer, computer equipment and other electric products with reliable and long lasting energy.Multipurpose: medical devices/security alarms/watches/calculators and many more electronics Voltage: 3V Shelf life: Up to 5 years Chemistry composition: Lithium Manganese Dioxide Package content: 10x CR2025 Lithium button cells