View Single Post
  #132   Report Post  
Posted to sci.electronics.components,sci.electronics.design,sci.electronics.misc,sci.electronics.repair
ian field[_2_] ian field[_2_] is offline
external usenet poster
 
Posts: 800
Default 9v battery terminal blanks?


"krw" wrote in message
t...
In article ,
says...
On Thu, 25 Dec 2008 21:17:35 -0000, William Sommerwerck
wrote:

But the Duracells were lasting only 6 months.
They're cheap smoke alarms.

That's pretty bad. I've been using leftover Toshibas, and they last at
least
a year.


I bought 6 smoke alarms at once, so I went for cheap ones. 99p on ebay I
believe.


Oh, *that's* a smart move. Expected though.


A few years back I bought a stack of £1.99 smoke alarms from a supposedly
reputable chemists chain (the non-special offer price was quite a bit
higher). These alarms became insensitive to smoke after only a couple of
months - pressing the test button worked but holding a cigarette to the
sensor no longer set it off. The landlord subsequently installed commercial
duty rechargeable smoke alarms.

The £1.99 alarms turned out to be good value for the batteries they
contained, a handy source of battery clips and I may eventually find a use
for the very loud piezo sounders.