How To Remove & Replace a Smoke Detector DIY! Kidde i4618 - YouTube
This came with the house. I decided to put a battery in it and it won't even power up. Does this require a hardwire? It was just mounted to the ceiling with
Kidde I4618AC Alarm Hardwire Smoke Detector with 9V Backup and Front Load Battery Door | Model i4618, White - Kiddie Ka F Adaptor - Amazon.com