UK 8.4v 30mAh NiCd Cell

[David]

Hi,

My ageing smoke alarm needs a new 8.4v 30mAh NiCd Cell (about the size
of an AAA battery) with flat top. I'm not really clued up on
electronics. I assume the 30mAh is the charge hold value and it doesn't
matter if I get a cell with a higher value?

Anyway, any idea where I can get a replacement, have looked in Maplins
but to no avail.

Thanks

David

 

[David]

Its actually a battery pack, just realised, with the small size cells
inside, it is about AAA size.


David wrote:

Hi,

My ageing smoke alarm needs a new 8.4v 30mAh NiCd Cell (about the size
of an AAA battery) with flat top. I'm not really clued up on
electronics. I assume the 30mAh is the charge hold value and it doesn't
matter if I get a cell with a higher value?

Anyway, any idea where I can get a replacement, have looked in Maplins
but to no avail.

Thanks

David

 

[Geoff]

David wrote:

Its actually a battery pack, just realised, with the small size cells
inside, it is about AAA size.


David wrote:
Hi,

My ageing smoke alarm needs a new 8.4v 30mAh NiCd Cell (about the
size of an AAA battery) with flat top. I'm not really clued up on
electronics. I assume the 30mAh is the charge hold value and it
doesn't matter if I get a cell with a higher value?

Anyway, any idea where I can get a replacement, have looked in
Maplins but to no avail.

You could probably buy a more sensitive alarm (complete with a hush button
this time) for less than the battery.

geoff

 

[David]

After some investigation I think you are right. The batteries will
probably cost Ł10.00 each perhaps more, the alarms probably Ł30.00 but
they should be better newer techonolgy.

Geoff wrote:

David wrote:

Its actually a battery pack, just realised, with the small size cells
inside, it is about AAA size.


David wrote:

Hi,

My ageing smoke alarm needs a new 8.4v 30mAh NiCd Cell (about the
size of an AAA battery) with flat top. I'm not really clued up on
electronics. I assume the 30mAh is the charge hold value and it
doesn't matter if I get a cell with a higher value?

Anyway, any idea where I can get a replacement, have looked in
Maplins but to no avail.


You could probably buy a more sensitive alarm (complete with a hush button
this time) for less than the battery.

geoff

 

[JoeSP]

"David" <asd@asd.com> wrote in message
news:uPudnWoXp9jW4_TZnZ2dnUVZ8qKdnZ2d@brightview.com...

Hi,

My ageing smoke alarm needs a new 8.4v 30mAh NiCd Cell (about the size of
an AAA battery) with flat top. I'm not really clued up on electronics. I
assume the 30mAh is the charge hold value and it doesn't matter if I get a
cell with a higher value?

Anyway, any idea where I can get a replacement, have looked in Maplins but
to no avail.

Best not to switch to different battery types unless you can get the exact
same voltage. I did that, and the alarm kept going off.

For the price of a new smoke alarm, get a new one. I wouldn't trust my life
to an "aging smoke alarm." I recently discovered that my 3-year old alarm
wasn't working anymore, when I heard a faint beeping sound, barely audible,
and traced it back to my smoke alarm. Humidity had corroded the speaker, and
I didn't know it.

 

[Geoff]

David wrote:

After some investigation I think you are right. The batteries will
probably cost Ł10.00 each perhaps more, the alarms probably Ł30.00 but
they should be better newer techonolgy.

Jeepers - domestic smoke alarms cost around UKP 4.00 here in NZ !

Newer ones are probably a bit less radioactive than t older ones too....

geoff