9 Volt Long Life Lithium Battery. 100% Free of Mercury, Lead, Cadmium. Capacity: 1200 mah. Battery Type: Metal Jacketed. Chemistry: Lithium Primary. Terminal Type: Minature Snap. Uses: Smoke Alarms, Medical Equipment, Carbon Monoxide Alarms, Microphones, Remote Controls, Weather Monitors, Clock Radios, Security Systems, Garage Door Openers and Many Other Devices.