Our only smoke detector is hard-wired into the ceiling. We have had 2 different smoke/CO detectors with battery backup. When a new battery is placed, it is fine for a few hours and then dies, causing the detector to chirp.
Is the electrical wiring somehow drawing power from the battery? Two completely different detectors have done the same thing, so I don't think it is a defective detector. I think there used to be another detector in the basement. I don't know if it was hard-wired or not, but we replaced it with a plug-in type. Any information would be great!
By Sarah
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Its probably wiring. Make sure the hot and the neutral wire are not swapped or on the battery wiring check for bare spot that might be going to ground or grounding.
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