Real Question…
what’s the point of hard wiring a smoke alarm if they’re still gonna require a backup battery, which always go dead in the middle of the night & wakes up the whole house.
WTF! Are the smoke alarm companies owned by the battery companies?

what’s the point of hard wiring a smoke alarm if they’re still gonna require a backup battery, which always go dead in the middle of the night & wakes up the whole house.
WTF! Are the smoke alarm companies owned by the battery companies?

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