"philo" wrote in message
...

"Ziggy" wrote in message
...
What is the approximate battery life of the receiver of a wire free door
chime?

For the sake of argument, let's say the unit is used very little and the
receiver does not have a light.



get a set of batteries like this:

http://www.plazaearth.com/philo/batt.jpg

they can ring your bell continuously for 25 years or so

Nah ... those are tiny.

What you want are Exide OPzS flooded cells - available up to 2V @ 12,000Ah
I'm sure there are bigger on the market, but that's as big as I've worked
on.