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Re: Flashlights

From John-Paul Stewart <jpstewart@personalprojects.net>
Newsgroups comp.os.linux.misc
Subject Re: Flashlights
Date 2025-11-09 19:05 -0500
Message-ID <mncoj1F25s5U2@mid.individual.net> (permalink)
References (19 earlier) <gRydnZJtR77jvJD0nZ2dnZfqn_GdnZ2d@giganews.com> <slrn10gs70k.313vj.candycanearter07@candydeb.host.invalid> <yaOcnUJKEemAO5P0nZ2dnZfqn_adnZ2d@giganews.com> <eqp3ulxbp7.ln2@Telcontar.valinor> <YxKdnWlfif1cvY30nZ2dnZfqn_idnZ2d@giganews.com>

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On 2025-11-09 12:04 a.m., c186282 wrote:
> On 11/8/25 07:31, Carlos E.R. wrote:
>>
>> Curious. A lot of the smoke detectors used in Canada use those 9V
>> batteries. They seem to be mandatory.
> 
> 
>   Seems like most detectors sold in USA now have
>   some kind of non-replacable "10-year" battery.
> 
>   Not sure how long the Californium in the detectors
>   lasts ... it'll eventually stop making so many ions.

I don't know about the ones in the USA, but here in Canada, the smoke
detectors I'm familiar with have the 10 year battery built-in which
corresponds to the 10 year life of whatever is in the detector itself.
They're advertised as "maintenance free" with a "lifetime battery".

All detectors come with expiry stickers you're supposed to put on when
you install them, and you're expected to replace the whole detector
every 10 years.  Using a regular 9-volt battery you're supposed to
replace the battery every year and replace the rest of the detector
after 10.

Also, the ones I've had with 10 year batteries only use the battery as
backup in the event of power failure.  They're hardwired to a 120 volt
household circuit for primary power.  There are similar hardwired ones
with 9-volt backup batteries as well as models that are solely powered
by the 9-volt battery for places where hardwired ones aren't viable.

But in all cases smoke detectors are presumed to only be good for 10 years.

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Re: Fancy-smanchy installers that don't work? c186282 <c186282@nnada.net> - 2025-10-26 22:17 -0400
  Re: Fancy-smanchy installers that don't work? "Carlos E.R." <robin_listas@es.invalid> - 2025-10-27 10:09 +0100
    Re: Fancy-smanchy installers that don't work? Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-10-27 21:23 +0000
      Re: Fancy-smanchy installers that don't work? "Carlos E.R." <robin_listas@es.invalid> - 2025-10-28 00:47 +0100
        Re: Fancy-smanchy installers that don't work? Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-10-28 00:27 +0000
          Re: Fancy-smanchy installers that don't work? Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-10-28 07:45 +0000
            Re: Fancy-smanchy installers that don't work? Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-10-28 23:05 +0000
          Accents. "Carlos E.R." <robin_listas@es.invalid> - 2025-10-28 13:46 +0100
            Re: Accents. ram@zedat.fu-berlin.de (Stefan Ram) - 2025-10-28 14:02 +0000
              Re: Accents. rbowman <bowman@montana.com> - 2025-10-28 18:54 +0000
            Re: Accents. rbowman <bowman@montana.com> - 2025-10-28 18:47 +0000
              Re: Accents. Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-10-28 20:21 +0000
                Re: Accents. "Carlos E.R." <robin_listas@es.invalid> - 2025-10-28 23:46 +0100
                Re: Accents. rbowman <bowman@montana.com> - 2025-10-29 01:41 +0000
                Re: Accents. The Natural Philosopher <tnp@invalid.invalid> - 2025-10-29 11:07 +0000
                Re: Accents. Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-10-29 18:47 +0000
                Re: Accents. Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-10-29 22:15 +0000
                Re: Accents. Allodoxaphobia <trepidation@example.net> - 2025-10-30 17:29 +0000
                Re: Accents. The Natural Philosopher <tnp@invalid.invalid> - 2025-10-30 17:31 +0000
                Re: Accents. Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-10-30 19:31 +0000
                Re: Accents. rbowman <bowman@montana.com> - 2025-10-30 20:14 +0000
                Re: Accents. rbowman <bowman@montana.com> - 2025-10-30 20:11 +0000
                Re: Accents. rbowman <bowman@montana.com> - 2025-10-30 20:10 +0000
                Re: Accents. "Carlos E.R." <robin_listas@es.invalid> - 2025-10-30 21:35 +0100
                Re: Accents. candycanearter07 <candycanearter07@candycanearter07.nomail.afraid> - 2025-10-30 21:40 +0000
                Re: Accents. Bobbie Sellers <bliss-sf4ever@dslextreme.com> - 2025-10-30 15:18 -0700
                Re: Accents. rbowman <bowman@montana.com> - 2025-10-31 03:17 +0000
                Re: Accents. Bobbie Sellers <bliss-sf4ever@dslextreme.com> - 2025-10-30 21:46 -0700
                Re: Accents. rbowman <bowman@montana.com> - 2025-10-31 19:25 +0000
                LED lights "Carlos E.R." <robin_listas@es.invalid> - 2025-11-01 14:38 +0100
                Re: LED lights c186282 <c186282@nnada.net> - 2025-11-01 20:50 -0400
                Re: LED lights The Natural Philosopher <tnp@invalid.invalid> - 2025-11-02 11:14 +0000
                Re: LED lights "Carlos E.R." <robin_listas@es.invalid> - 2025-11-02 15:41 +0100
                Re: LED lights rbowman <bowman@montana.com> - 2025-11-02 19:57 +0000
                Re: LED lights Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-11-03 00:12 +0000
                Re: LED lights "Carlos E.R." <robin_listas@es.invalid> - 2025-11-03 02:38 +0100
                Re: LED lights c186282 <c186282@nnada.net> - 2025-11-03 00:19 -0500
                Re: LED lights Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-11-03 07:03 +0000
                Re: LED lights c186282 <c186282@nnada.net> - 2025-11-03 14:20 -0500
                Re: LED lights The Natural Philosopher <tnp@invalid.invalid> - 2025-11-03 20:02 +0000
                Re: LED lights rbowman <bowman@montana.com> - 2025-11-04 04:42 +0000
                Re: LED lights c186282 <c186282@nnada.net> - 2025-11-04 02:31 -0500
                Re: LED lights The Natural Philosopher <tnp@invalid.invalid> - 2025-11-03 10:16 +0000
                Re: LED lights rbowman <bowman@montana.com> - 2025-11-02 01:51 +0000
                Re: LED lights "Carlos E.R." <robin_listas@es.invalid> - 2025-11-02 15:48 +0100
                Re: LED lights rbowman <bowman@montana.com> - 2025-11-02 19:42 +0000
                Re: LED lights "Carlos E.R." <robin_listas@es.invalid> - 2025-11-02 21:33 +0100
                Re: Accents. Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-10-30 22:21 +0000
                Re: Accents. Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-10-31 04:59 +0000
                Re: Accents. "Carlos E.R." <robin_listas@es.invalid> - 2025-10-31 14:41 +0100
                Re: Accents. John Ames <commodorejohn@gmail.com> - 2025-10-31 08:56 -0700
                Re: Accents. rbowman <bowman@montana.com> - 2025-10-31 19:53 +0000
                Re: Accents. Bobbie Sellers <bliss-sf4ever@dslextreme.com> - 2025-10-31 19:02 -0700
                Re: Accents. Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-11-01 02:52 +0000
                Re: Accents. rbowman <bowman@montana.com> - 2025-11-01 05:32 +0000
                Blade runner "Carlos E.R." <robin_listas@es.invalid> - 2025-11-01 14:24 +0100
                Re: Not Blade Runner Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-11-01 19:57 +0000
                Blade runner "Carlos E.R." <robin_listas@es.invalid> - 2025-11-01 14:22 +0100
                Re: Blade runner rbowman <bowman@montana.com> - 2025-11-02 01:22 +0000
                Re: Blade runner "Carlos E.R." <robin_listas@es.invalid> - 2025-11-02 15:50 +0100
                Re: Blade runner rbowman <bowman@montana.com> - 2025-11-02 19:20 +0000
                Re: Blade runner "Carlos E.R." <robin_listas@es.invalid> - 2025-11-02 21:34 +0100
                Re: Blade runner rbowman <bowman@montana.com> - 2025-11-03 02:47 +0000
                Re: Blade runner "Carlos E.R." <robin_listas@es.invalid> - 2025-11-03 13:05 +0100
                Re: Blade runner rbowman <bowman@montana.com> - 2025-11-03 20:04 +0000
                Re: Blade runner c186282 <c186282@nnada.net> - 2025-11-03 15:40 -0500
                Flashlights "Carlos E.R." <robin_listas@es.invalid> - 2025-11-03 22:30 +0100
                Re: Flashlights c186282 <c186282@nnada.net> - 2025-11-03 17:48 -0500
                Re: Flashlights Ian <gay@sfuu.ca> - 2025-11-03 20:26 -0800
                Re: Flashlights Robert Riches <spamtrap42@jacob21819.net> - 2025-11-04 04:55 +0000
                Re: Flashlights c186282 <c186282@nnada.net> - 2025-11-04 02:35 -0500
                Re: Flashlights Robert Riches <spamtrap42@jacob21819.net> - 2025-11-05 03:44 +0000
                Re: Flashlights c186282 <c186282@nnada.net> - 2025-11-05 01:05 -0500
                Re: Flashlights "Carlos E.R." <robin_listas@es.invalid> - 2025-11-05 13:20 +0100
                Re: Flashlights c186282 <c186282@nnada.net> - 2025-11-05 22:08 -0500
                Re: Flashlights rbowman <bowman@montana.com> - 2025-11-05 16:33 +0000
                Re: Flashlights "Carlos E.R." <robin_listas@es.invalid> - 2025-11-05 20:37 +0100
                Re: Flashlights c186282 <c186282@nnada.net> - 2025-11-05 22:26 -0500
                Re: Flashlights "Carlos E.R." <robin_listas@es.invalid> - 2025-11-06 11:56 +0100
                Re: Flashlights rbowman <bowman@montana.com> - 2025-11-06 18:42 +0000
                Re: Flashlights c186282 <c186282@nnada.net> - 2025-11-06 17:30 -0500
                Re: Flashlights candycanearter07 <candycanearter07@candycanearter07.nomail.afraid> - 2025-11-07 16:20 +0000
                Re: Flashlights The Natural Philosopher <tnp@invalid.invalid> - 2025-11-07 18:11 +0000
                Re: Flashlights rbowman <bowman@montana.com> - 2025-11-07 18:50 +0000
                Re: Flashlights "Carlos E.R." <robin_listas@es.invalid> - 2025-11-07 22:42 +0100
                Re: Flashlights c186282 <c186282@nnada.net> - 2025-11-07 21:08 -0500
                Re: Flashlights "Carlos E.R." <robin_listas@es.invalid> - 2025-11-08 13:31 +0100
                Re: Flashlights Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-11-08 16:05 +0000
                Re: Flashlights rbowman <bowman@montana.com> - 2025-11-08 20:06 +0000
                Re: Flashlights c186282 <c186282@nnada.net> - 2025-11-09 00:04 -0500
                Re: Flashlights Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-11-09 20:08 +0000
                Re: Flashlights c186282 <c186282@nnada.net> - 2025-11-10 00:41 -0500
                Re: Flashlights The Natural Philosopher <tnp@invalid.invalid> - 2025-11-10 12:07 +0000
                Re: Flashlights John-Paul Stewart <jpstewart@personalprojects.net> - 2025-11-09 19:05 -0500
                Re: Flashlights c186282 <c186282@nnada.net> - 2025-11-10 00:58 -0500
                Re: Flashlights c186282 <c186282@nnada.net> - 2025-11-05 22:12 -0500
                Re: Flashlights rbowman <bowman@montana.com> - 2025-11-06 05:09 +0000
                Re: Flashlights c186282 <c186282@nnada.net> - 2025-11-06 01:31 -0500
                Re: Flashlights rbowman <bowman@montana.com> - 2025-11-06 18:39 +0000
                Re: Flashlights rbowman <bowman@montana.com> - 2025-11-04 07:51 +0000
                Re: Flashlights c186282 <c186282@nnada.net> - 2025-11-04 02:19 -0500
                Re: Flashlights The Natural Philosopher <tnp@invalid.invalid> - 2025-11-04 09:55 +0000
                Re: Flashlights "Carlos E.R." <robin_listas@es.invalid> - 2025-11-04 11:28 +0100
                Re: Flashlights The Natural Philosopher <tnp@invalid.invalid> - 2025-11-04 11:15 +0000
                Re: Flashlights c186282 <c186282@nnada.net> - 2025-11-04 13:27 -0500
                Re: Flashlights "Carlos E.R." <robin_listas@es.invalid> - 2025-11-04 19:37 +0100
                Re: Flashlights c186282 <c186282@nnada.net> - 2025-11-04 21:12 -0500
                Re: Flashlights c186282 <c186282@nnada.net> - 2025-11-04 13:22 -0500
                Re: Flashlights Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-11-04 20:52 +0000
                Re: Flashlights c186282 <c186282@nnada.net> - 2025-11-04 21:23 -0500
                Re: Flashlights "Carlos E.R." <robin_listas@es.invalid> - 2025-11-05 13:23 +0100
                Re: Flashlights c186282 <c186282@nnada.net> - 2025-11-05 22:10 -0500
                Re: Flashlights "Carlos E.R." <robin_listas@es.invalid> - 2025-11-06 12:05 +0100
                Re: Flashlights c186282 <c186282@nnada.net> - 2025-11-06 17:21 -0500
                Re: Flashlights Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-11-05 07:21 +0000
                Re: Flashlights c186282 <c186282@nnada.net> - 2025-11-05 03:54 -0500
                Re: Flashlights The Natural Philosopher <tnp@invalid.invalid> - 2025-11-04 09:52 +0000
                Re: Flashlights Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-11-05 07:21 +0000
                Re: Flashlights c186282 <c186282@nnada.net> - 2025-11-05 03:17 -0500
                Re: Flashlights The Natural Philosopher <tnp@invalid.invalid> - 2025-11-05 11:54 +0000
                Re: Flashlights rbowman <bowman@montana.com> - 2025-11-05 16:41 +0000
                Re: Flashlights c186282 <c186282@nnada.net> - 2025-11-05 22:16 -0500
                Re: Flashlights Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-11-05 22:22 +0000
                Re: Flashlights c186282 <c186282@nnada.net> - 2025-11-05 22:41 -0500
                Re: Flashlights "Carlos E.R." <robin_listas@es.invalid> - 2025-11-06 12:10 +0100
                Re: Flashlights c186282 <c186282@nnada.net> - 2025-11-06 17:24 -0500
                Re: Flashlights "Carlos E.R." <robin_listas@es.invalid> - 2025-11-07 02:44 +0100
                Re: Flashlights c186282 <c186282@nnada.net> - 2025-11-05 21:53 -0500
                Re: Flashlights "Carlos E.R." <robin_listas@es.invalid> - 2025-11-04 11:12 +0100
                Re: Blade runner "Carlos E.R." <robin_listas@es.invalid> - 2025-11-03 23:14 +0100
                Re: Accents. Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-10-31 23:19 +0000
                Re: Accents. rbowman <bowman@montana.com> - 2025-11-01 05:33 +0000
                Blade runner. "Carlos E.R." <robin_listas@es.invalid> - 2025-11-01 14:29 +0100
                Re: Blade runner. Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-11-01 19:56 +0000
                Re: Blade runner. c186282 <c186282@nnada.net> - 2025-11-01 21:38 -0400
                Re: Accents. "Carlos E.R." <robin_listas@es.invalid> - 2025-11-01 14:31 +0100
                Re: Accents. rbowman <bowman@montana.com> - 2025-10-31 19:48 +0000
                Re: Accents. Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-10-31 22:45 +0000
                Re: Accents. Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-10-31 23:22 +0000
                Re: Accents. "Carlos E.R." <robin_listas@es.invalid> - 2025-10-30 21:33 +0100
                Re: Accents. Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-10-30 22:20 +0000
                Re: Accents. "Carlos E.R." <robin_listas@es.invalid> - 2025-10-30 23:36 +0100
                Re: Accents. Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-10-31 04:51 +0000
                Re: Accents. "Carlos E.R." <robin_listas@es.invalid> - 2025-10-31 14:48 +0100
                Re: Accents. The Natural Philosopher <tnp@invalid.invalid> - 2025-10-31 15:03 +0000
                Re: Accents. rbowman <bowman@montana.com> - 2025-10-31 20:15 +0000
                Re: Accents. The Natural Philosopher <tnp@invalid.invalid> - 2025-11-01 11:15 +0000
                Re: Accents. rbowman <bowman@montana.com> - 2025-11-02 00:39 +0000
                Re: Accents. Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-10-31 23:26 +0000
                Re: Accents. "Carlos E.R." <robin_listas@es.invalid> - 2025-11-01 14:44 +0100
                Re: Accents. The Natural Philosopher <tnp@invalid.invalid> - 2025-11-01 14:05 +0000
                Re: Accents. rbowman <bowman@montana.com> - 2025-11-02 00:54 +0000
                Re: Accents. The Natural Philosopher <tnp@invalid.invalid> - 2025-11-02 11:15 +0000
                Re: Accents. rbowman <bowman@montana.com> - 2025-11-02 19:02 +0000
                Re: Accents. Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-11-01 20:10 +0000
                Re: Accents. rbowman <bowman@montana.com> - 2025-11-02 00:49 +0000
                Re: Accents. The Natural Philosopher <tnp@invalid.invalid> - 2025-11-02 11:13 +0000
                Re: Accents. rbowman <bowman@montana.com> - 2025-11-02 18:48 +0000
                Re: Accents. The Natural Philosopher <tnp@invalid.invalid> - 2025-11-03 10:12 +0000
                Re: Accents. Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-11-03 20:04 +0000
                Re: Accents. rbowman <bowman@montana.com> - 2025-11-04 04:28 +0000
                Re: Accents. "Carlos E.R." <robin_listas@es.invalid> - 2025-11-03 13:11 +0100
                Re: Accents. The Natural Philosopher <tnp@invalid.invalid> - 2025-11-03 12:26 +0000
                Re: Accents. John Ames <commodorejohn@gmail.com> - 2025-11-03 09:17 -0800
                Re: Accents. "Carlos E.R." <robin_listas@es.invalid> - 2025-11-01 14:42 +0100
                Re: Accents. rbowman <bowman@montana.com> - 2025-10-31 20:01 +0000
                Re: Accents. The Natural Philosopher <tnp@invalid.invalid> - 2025-11-01 11:15 +0000
                Re: Accents. rbowman <bowman@montana.com> - 2025-11-02 00:33 +0000
                Re: Accents. Don_from_AZ <djatechNOSPAM@comcast.net.invalid> - 2025-11-01 20:43 -0700
                Re: Accents. Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-11-02 19:30 +0000
                Re: Accents. rbowman <bowman@montana.com> - 2025-11-03 02:21 +0000
                Re: Accents. rbowman <bowman@montana.com> - 2025-10-31 03:47 +0000
                Re: Accents. Pancho <Pancho.Jones@protonmail.com> - 2025-10-30 22:48 +0000
                Re: Accents. rbowman <bowman@montana.com> - 2025-10-31 03:58 +0000
                Re: Accents. The Natural Philosopher <tnp@invalid.invalid> - 2025-10-31 08:25 +0000
                Re: Accents. "Carlos E.R." <robin_listas@es.invalid> - 2025-11-01 20:09 +0100
                Re: Accents. rbowman <bowman@montana.com> - 2025-10-31 03:29 +0000
                Re: Accents. Bobbie Sellers <bliss-sf4ever@dslextreme.com> - 2025-10-30 21:50 -0700
                Re: Accents. The Natural Philosopher <tnp@invalid.invalid> - 2025-10-31 08:28 +0000
                Re: Accents. rbowman <bowman@montana.com> - 2025-10-31 19:29 +0000
                Re: Accents. The Natural Philosopher <tnp@invalid.invalid> - 2025-10-31 08:27 +0000
                Re: Accents. rbowman <bowman@montana.com> - 2025-10-31 19:41 +0000
                Re: Accents. Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-10-31 22:45 +0000
                Re: Accents. rbowman <bowman@montana.com> - 2025-11-01 05:36 +0000
                Re: Accents. "Carlos E.R." <robin_listas@es.invalid> - 2025-11-01 20:11 +0100
                Re: Accents. rbowman <bowman@montana.com> - 2025-11-02 00:59 +0000
        Re: Fancy-smanchy installers that don't work? The Natural Philosopher <tnp@invalid.invalid> - 2025-10-28 09:34 +0000

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