CR2450, CR2032, CR123A... long live AAA (AA are cool too!)
I am never going to buy something battery powered that is not AAA or AA.
We got a load of Aqara sensors for the house, I think they are the Door and Window Sensor P2 and the Motion and Light Sensor P2, both work on Thread and Matter, and the performance has been solid, connection stable, easy to onboard and setup, not too much of an eyesore, they are good enough for something you set and forget.
Fast forward a year and some later, we got all of them slowly dropping off the network because the batteries are dead, which is expected for these kind of devices, but the batteries they use... CR2450 for the Motion sensor (2 for each!) and the CR123A (I believe) for the Door sensor (1 only thankfully).
No two ways about it: these batteries suck!
- hard to find
- expensive
- short lived (but that might be the implementation from Aqara or our usage)
IKEA came out recently with a new range of home automation sensors and widgets and they all use AAA batteries, the one you can easily find, the one you already have a drawer full at home, the one you can spend a little more to get rechargeable options and never run out again.
Our fault for not checking, it was kind of an impulse buy, but will never-never-NEVER buy anything with these God forsaken batteries ever again.
End of rant, catch you tomorrow.