For Smoke Alarm, Clock, Walkie-talkie, Gas Detector - 9V - 628 mAh - 9 V DC - 12 Pack
- One advantage of alkaline battery is longer shelf life, while another is it saves power when not in use
- 9 V DC battery - Ensures a steady and uninterrupted supply to your smoke alarm
- Solution for a battery that is about to expire, so you can replace it whenever needed