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battery life

Community Member

I bought a house with Nest thermostat and smoke detectors, so I don't know much about them.  For the first year I lived here all was fine, but now the batteries go dead in both of my smoke detectors about every 3 weeks to a month.   In one of them, I have replaced the batteries 3 times within 2 months. I use brand new batteries.     Also every time the batteries go dead, it is in the middle of the night.  There is a warning or two, then beep, beep, beep!  I have to get out of bed and take them down and remove the batteries because no one can sleep through that!  Is that typical?