Re: End-user Alert Delivery (was Re: NDAA passed: Internet and Online Streaming Services Emergency Alert Study)

[Mel Beckman <mel () beckman org>]

This is because there is only enough undecayed Americium in the 10-YO smoke detectors to supply radioactive boyscouts 
with reactor fuel :)

 -mel

> On Jan 13, 2021, at 11:49 PM, bzs () theworld com wrote:
>
>
> On January 14, 2021 at 04:56 jra () baylink com (Jay R. Ashworth) wrote:
> > Well, it probably gets way worse: if it's a "permanent" battery, it will be
> > harder to find, and harder to replace...
>
> No, you don't replace the permanent batteries in these 10 year smoke
> detectors, you toss the whole smoke detector and buy a new one. Heroic
> efforts aside.
>
> So you don't need to find the right battery.
>
> FWIW many smoke detectors bought in the past 10-15 years (I dunno but
> something like that) even with typical replaceable batteries have some
> sort of timer in them so when they hit 10 years they begin beeping in
> a slightly different pattern (like two short beeps every 60 seconds)
> and replacing the battery doesn't help. It just begins doing that on
> the fresh battery until you figure out that you need to toss the
> detector and buy a new one.
>
> Ran into that, looked it up on their web site as I was confused why a
> new battery wasn't helping and they confirmed that means the detector
> has expired buy a new one.
>
> I assume these 10 year sealed smoke detectors somehow came out of
> that.
>
> > ----- Original Message -----
> > > From: "William Herrin" <bill () herrin us>
> > > To: "jra" <jra () baylink com>
> > > Cc: bzs () theworld com, nanog () nanog org
> > > Sent: Wednesday, January 13, 2021 11:52:47 PM
> > > Subject: Re: End-user Alert Delivery (was Re: NDAA passed: Internet and Online Streaming Services Emergency Alert 
> > > Study)
> >
> > > On Wed, Jan 13, 2021 at 7:58 PM Jay R. Ashworth <jra () baylink com> wrote:
> > > > Last time I looked, consumer residential smoke detectors were still running
> > > > off 9V alkaline batteries, which are expected to run the device for 6 months
> > > > of 1/99 duty cycle (or less, probably *way* less).
> > >
> > > Ordinary ionization-based smoke detectors use a 10-year lithium
> > > battery, which is about the same lifespan as the americium-based
> > > detector circuit as it begins to decay into neptunium.
> > >
> > > You may now resume your argument over how much battery drain is too much.
> > >
> > > Regards,
> > > Bill Herrin
> > >
> > >
> > > --
> > > Hire me! https://bill.herrin.us/resume/
> >
> > -- 
> > Jay R. Ashworth                  Baylink                       jra () baylink com
> > Designer                     The Things I Think                       RFC 2100
> > Ashworth & Associates       http://www.bcp38.info          2000 Land Rover DII
> > St Petersburg FL USA      BCP38: Ask For It By Name!           +1 727 647 1274
>
> -- 
>        -Barry Shein
>
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