I guess nobody told Energizer.
https://camelcamelcamel.com/product/B01C4PP8FK?cpf=amazon-ne...
My Nest smoke detectors demand these specific batteries. They were all installed around the same time, so they all come due at once, at a cost of ~$200.
https://camelcamelcamel.com/product/B01C4PP8FK?cpf=amazon-ne...
My Nest smoke detectors demand these specific batteries. They were all installed around the same time, so they all come due at once, at a cost of ~$200.
I'm not sure what the actual scale of difference is between battery chemistries. Perhaps someone with more knowledge will reply and refute me.
Nest smoke detectors take 6 batteries each https://support.google.com/googlenest/answer/9297548?hl=en#:....
72 batteries / 6 batteries/device = approximately 12 smoke detectors (could be 9, 10, or 11)
We have 6 First Alert smoke detectors that are connected together but don't use WiFi. There's 1 in each bedroom and a couple left over for key places.
Using 12 smoke detectors is being very careful to cover every space or a big house. Or both.
I don't have a huge house, but it is a 1950s split-level, and is pretty much the opposite of a modern open-plan design. And yes, I'm careful. Following NFPA recommendations, I have a smoke/CO detector in every bedroom, outside every sleeping area, and on every level, which adds up. Better safe than sorry.
Until recently at least, Energizer was the sole supplier of these batteries. You can't use anything else because they have a different voltage and discharge curve, so if you put alkaline batteries in, the Nest will almost immediately complain that they're low. I see there are some mildly sketchy other brands on Amazon now. Not sure if I'm going to take that chance.