XUNIUZERO 9V Batteries 6F22 Square Battery (4 Pack) for Smoke Detector Alarm System, Wireless doorbell, Electronics Long-Lasting

ENVIRONMENT FRIENDLY. 9v batteries for smoke detector don’t contain Hg/Cd/Pb, the composition of 9 v batteries for smoke detector is environmentally friendly and 9volt battery pack will not cause pollution to the environment, contributing to a green and healthy life.

High-Quality. Manufactured with premium carbon zinc materials. The square battery 9v shell is made of corrosion-resistant steel shell with good sealing, It features a leak-proof and corrosion-resistant design, which not only extends the battery's lifespan but also protects your smoke detector's internal components from damage

Reliable quality. Smoke detector batteries improved low self discharge design,even at temperatures as low as -4°F degrees or as high as 140°F degrees.

Wide Application. Smoke detector,multimeter,alarm system, remote control toys, wireless doorbell,wireless microphone, wireless headset,home security devices, medical devices etc.

After-Sales Service. If you have any questions, please feel free to email us. We are committed to providing the highest quality products and outstanding customer service.