On Sun, 21 Jan 2007 12:18:56 +0000, Charlie Mitchell
jm2@charleem.co.uk> wrote:

Ziggy wrote:
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.

{Here are some sample products from Argos http://tinyurl.com/2sb3r9}
Our wireless doorbells seemed to do nothing but die, they were
totally hopeless, in the end I put a wired one in myself which
is still going strong, the wireless ones just seemed to stop
working for some reason after about 12 months and no end of
fiddling with them would get them working again, it also
seemed regardless of the amount of money we spent on them as
well.

They are not fighting with your wireless network are they ?

Both my wireless meat thermometer and my little Chinese weather
station quit when my wifi network is running.

DG

"Ziggy" <duff@nomail.invalid> wrote in message
news:Xns98BE80C9F79CC64A18E@127.0.0.1...
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

Not having such a device, why would the *receiver* be battery powered
unless you live somewhere without mains electricity?

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.

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.



Though I now work for a different industrial battery manufacturer...I used
to work for Exide...
but never worked with cells larger than 1700 AH. I think the largest cell
I
could carry into my basement
would be about 300AH

Had to remove 192 flooded cells from a Nortel site once, each one with 56
litres of acid.
Wasnt exactly the nicest job we've ever done ... but sure did pay well !
Replaced them with good old VH57s

Had to remove 192 flooded cells from a Nortel site once, each one with 56
litres of acid.
Wasnt exactly the nicest job we've ever done ... but sure did pay well !
Replaced them with good old VH57s




Well I'm 57 years old and my heavy lifting days are over.
they hired a 300# (135kg) "kid" to help me out on the heavy jobs.

The first week on the job he laughed at me because I could no
longer lift all those "very light" cells.

After I had him carry a dozen cells up a flight of stairs
(and the old ones back down) he started laughing a bit less :)

I really rubbed it in a bit and told him that I was the one who installed
them originally
about 5 years before!

Heck my heavy lifting ended about 6 years ago when I had knee surgery

After I had him carry a dozen cells up a flight of stairs
(and the old ones back down) he started laughing a bit less :)

I really rubbed it in a bit and told him that I was the one who
installed
them originally
about 5 years before!

I realised I was getting on when I started ripping out equipment that was
state of the art 8-10 years ago when I first installed it, and replacing
it
with kit that was a fraction of the size (

Heck my heavy lifting ended about 6 years ago when I had knee surgery

I just get contractors to do it )

Charlie Mitchell wrote:
The wired one I put in is just an old fashioned ding dong one,
it's not one that's wired into the mains, that really does
sound dangerous, epseically where my wiring skills are
concerned!!

I've got a mains fire-bell[1] wired up to the phone line.

Owain


[1] Security bell actually, fire-bells don't run on mains

I've got a mains fire-bell[1] wired up to the phone line.
[1] Security bell actually, fire-bells don't run on mains
Good god, it must be the equivalent of being woken up by being
kicked in the head!

"Ziggy" <duff@nomail.invalid> wrote in message
news:Xns98BE80C9F79CC64A18E@127.0.0.1...
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

No, the klaxon on the alarm clock has that effect. I'm out of bed and
standing before I wake up!

Unless those are of exotic construction, won't they have
self-discharged within a couple years' time?

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




Irrespective of usage, the receiver must be active all the time waiting for

--
John

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




Irrespective of usage, the receiver must be active all the time waiting for
a call - like leaving a radio switched on - with the volume turned down - it
will eat the batteries. Plug in ones are better.