- 1.2 Ah capacity
- Ideal for smoke detectors
- 10 year life in smoke detectors Now theres no need to change batteries every year to keep your home & family protected by working detectors. Ultralife uses the latest lithium technology to produce a 9V battery which has been designed especially for low-energy equipment like smoke detectors & wireless alarm PIRs. Enjoy years of peace of mind with the longest lasting 9V battery in the world today backed by the manufacturers 10-year warranty if used in a typical UL smoke detector.