Aloha, This is a question about smoke alarms that are hardwired with battery backup. The house belongs to my friend and the wiring was redone about a year and a half ago, to bring it up to code.
Are these alarms generally wired in such a way that if one of the batteries gets low, all of the alarms will start beeping? This happened about six months ago and it took awhile to figure out which alarm battery needed to be replaced. Then, a couple days ago, another alarm started beeping by itself, but when she replaced that battery, it didn't stop. She finally started replacing batteries in all the alarms and when she replaced the one in her hallway, an alarm that was not beeping, the beeping stopped. Is it usual for the batteries in these hard-wired alarms to get low every six months? Thanks, Betsy [Non-text portions of this message have been removed]
