How To Replace The Battery In A First Alert Carbon Monoxide Alarm Model CO400
0:30
YouTubeMr. Opener
How To Replace The Battery In A First Alert Carbon Monoxide Alarm Model CO400
Hi everyone! This video is about how to replace the battery in a First Alert carbon monoxide alarm model CO400. I spend 30 minutes trying open the battery while the only instruction on the manual said "Push and lift the battery door to open." Very helpful... I didn't see any video that shows how to open this detector so I decided to make this ...
85.8K viewsOct 9, 2021
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