Kiddie Hardwired Smoke Detector Blinking Green + Says Low Battery What going on? (Brand new)

Perhaps the new one you bought is defective.
Return it and get a new one

Does yours require a 9 volt battery? My detectors are hard wired as well, but have a 9 volt battery backup.

Is there an end of life sticker on the side? Check the date to make sure it's not old stock. I'd return and get a new one.

Kidde is known to have problems with false alarms etc.
Replace it with First Alert / BRK

Shaner wrote: ↑Perhaps the new one you bought is defective.
Return it and get a new one

Not sure if this was the problem or what but at first I had to hanging down to see if it worked before twisting it in place.

I twisted it place but still got the low battery message but then ran the test button again and now it's happy.

marksmithy69 wrote: ↑Does yours require a 9 volt battery? My detectors are hard wired as well, but have a 9 volt battery backup.

No this one's have a built in lithium battery what should last 10 years. It's supposed to be more convenient and I guess it's cheaper as if you got the 9v ones they say you should change that battery every 6 months or at least once a year.

congo wrote: ↑Is there an end of life sticker on the side? Check the date to make sure it's not old stock. I'd return and get a new one.

The new ones are bit weird on the box they say good for 10 years from day of installation. But then in the device it has a place to right now that year but also under it has 2032.

chimaican wrote: ↑Kidde is known to have problems with false alarms etc.
Replace it with First Alert / BRK

Hmm, sadly most stores sell Kidde. When I needed 3 new detector in my place the guy who installed BKk but I don't like them as the test button is small plus I like when they speak.

I will look into first alert though.

Haven't bought the 10 year non-replaceable battery version, but any pre-installed battery version used to have some pull tab that needed to be removed to prevent the built in battery from being used up before installation.

I assume if yours didn't have a removable battery protection tab, then it must enable/complete the built in battery backup circuit when you actually mounted it on the mounting plate. Hence how they can claim 10 years from date of installation instead of 10 years from date of manufacture since the battery isn't enabled until you install it.

I was disappointed that when i bought replacement hardwired that now they only come with a battery backup of some kind.
They came with a warning note saying to do something in a certain way when first using it to avoid the battery fail signal (it had the 10 year type - and it was not simple like pull the battery tab). I don't recall what it was right now, but it was Kiddie brand from Costco.

If you look online at Kiddie hardwired alarms at HomeDepot, go to the comments section where people complain about this and there is a solution mentioned.

xiaobao wrote: ↑ Hmm, sadly most stores sell Kidde. When I needed 3 new detector in my place the guy who installed BKk but I don't like them as the test button is small plus I like when they speak.

I will look into first alert though.

Lowe's / Rona sells the First Alerts. They tend to go on sale at least 2x a year.

rilles wrote: ↑ I was disappointed that when i bought replacement hardwired that now they only come with a battery backup of some kind.
They came with a warning note saying to do something in a certain way when first using it to avoid the battery fail signal (it had the 10 year type - and it was not simple like pull the battery tab). I don't recall what it was right now, but it was Kiddie brand from Costco.

If you look online at Kiddie hardwired alarms at HomeDepot, go to the comments section where people complain about this and there is a solution mentioned.

Funny, I just replaced all of ours recently, and there was something that activated the battery that I don't recall either and this was only 2 months ago. Maybe it was the way you twist the unit into its mounting bracket? I'm curious now, but not curious enough to take one down to take a look lol

chimaican wrote: ↑ Lowe's / Rona sells the First Alerts. They tend to go on sale at least 2x a year.

Yeah one time is October hoping I can buy them on sale when I need to replace them all. Worried going to need to replace one at a time as they will break.

I will check them out next time I need you replace.

djeffery wrote: ↑ Funny, I just replaced all of ours recently, and there was something that activated the battery that I don't recall either and this was only 2 months ago. Maybe it was the way you twist the unit into its mounting bracket? I'm curious now, but not curious enough to take one down to take a look lol

Yeah maybe, I also don't want to take it down lol.

Happy the new one is soild green and not beeping.

I would steer far away from Kiddie, Stick with First Alert or BRK.