Batteries got good enough and electronics efficient enough that for a doorbell it makes more sense to use a battery than to run a dedicated 12v wire.
My dumb doorbell has a little coin battery.
People tweeting stuff. We allow tweets from anyone.
RULES:
Batteries got good enough and electronics efficient enough that for a doorbell it makes more sense to use a battery than to run a dedicated 12v wire.
My dumb doorbell has a little coin battery.
Imaging explaining that to someone in 2025 would work too. Didn't know that either of these existed.