X2Power 9V Lithium Battery – 1 Pack

Reliable 9V lithium performance provides consistent power for smoke alarms, carbon monoxide detectors, and wireless security devices

9V lithium battery replacement for Energizer L522 and Ultralife U9VL, delivering long-lasting reliable power for smoke detectors, medical devices, alarms, and professional electronics.

Lasts up to 10 years in ionization smoke alarms, reducing the need for frequent battery changes and maintenance

Lightweight lithium design delivers up to 5x longer life than alkaline batteries, helping prevent unexpected power loss

Ideal for safety-critical devices where dependable, long-term power is essential for continuous protection

Long shelf life and storage reliability ensures backup batteries are ready when needed