RAYR9VL8G LITHIUM BATTERIES, 9V, 8/PACK

Secure power for the long haul. This Rayovac® 9V lithium battery is perfect for use in smoke detectors, home security systems, and other devices that need long-term power. With a specially formulated high energy density, it lasts up to 10 years in smoke alarms to save you money and provide peace of mind.