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Old 01-13-2007, 09:17 PM   #1 (permalink)
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Why do smoke alarm batteries only get low late at night?

So I'm sitting here enjoying my day of being lazy and what happens at 11:15 at night??

*CHIRP*













*CHIRP*
















*CHIRP*









and I don't think I have any batteries for it. pitty me
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Old 01-13-2007, 09:25 PM   #2 (permalink)
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It's a republicrat plot perpetrated by the International Brotherhood of Illegal Aliens and Terrorists. Run for the hills
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Old 01-13-2007, 09:29 PM   #3 (permalink)
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What? I cant hear you over that damn chirping. Why dont you change those batteries?
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Old 01-13-2007, 09:31 PM   #4 (permalink)
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thats like the power going out in the middle of the night and waking up to no coffee (preset coffeepot)

Can't happen durring the day
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Old 01-13-2007, 09:53 PM   #5 (permalink)
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So I'm sitting here enjoying my day of being lazy and what happens at 11:15 at night??
*CHIRP*
*CHIRP*
*CHIRP*
and I don't think I have any batteries for it. pitty me

Oh, quitcherbitching, go pull the batteries out of your vibrating buttplug, put them in your smoke detector, and get a good nights sleep.
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Old 01-13-2007, 09:59 PM   #6 (permalink)
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Oh, quitcherbitching, go pull the batteries out of your vibrating buttplug, put them in your smoke detector, and get a good nights sleep.

smoke detector takes 9v


you're a funny sumbitch and i hate you. :blackflipoff2:
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Old 01-13-2007, 10:35 PM   #7 (permalink)
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That's why I no-longer have a smoke detector in my room (there's one on the other side of the wall anyway), it did that when I had just gotten to sleep, I got up and switched batteries, and it wouldn't quit, that alarm is now a paper weight.
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Old 01-13-2007, 11:01 PM   #8 (permalink)
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seems like most people have problems at night. i work for the fire dept, and ive had several late night "public service" calls to check smoke detectors in the middle of the night..go figure
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Old 01-14-2007, 12:16 AM   #9 (permalink)
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seems like most people have problems at night. i work for the fire dept, and ive had several late night "public service" calls to check smoke detectors in the middle of the night..go figure

there must be a conspiracy
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Last edited by animator; 01-14-2007 at 12:21 AM.
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Old 01-14-2007, 05:24 AM   #10 (permalink)
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I had a smoke detector that drove me nuts for months.

I was working in the basement one day, and heard it "chirp". Well, in a cement basement, with cinderblock walls, a few dividing walls, and lots of exposed ductwork, the "chirp" sounded like it was coming from everywhere.

I would walk to one side of the basement, it would chirp, and sound like it was coming from the other side of the basement. No matter where I stood, the echo made it sound like it was coming from somewhere else.

Turns out the previous owner placed a smoke detector on top of the ductwork, and the sound was resonating through the ducts. Took me months to find it.
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Old 01-14-2007, 06:58 AM   #11 (permalink)
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Why do smoke alarm batteries only get low late at night?

I wonder why don't people change the batteries in their smoke alarms every 6months so they don't get low and chirp late at night?
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Old 01-14-2007, 07:00 AM   #12 (permalink)
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there must be a conspiracy
Why are people so quick to declare it a conspiracy? It's a basic law of nature.
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Old 01-14-2007, 07:43 AM   #13 (permalink)
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It also happens when your nephew, who fights naps like nobody you've ever seen, finally goes to sleep.


I do pity you. I do.
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Old 01-14-2007, 07:55 AM   #14 (permalink)
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Smartass technical explaination to follow...

Generally, your house will be cooler at night.

Within normal operating temps, batteries will generally put out a lower voltage at a lower temp

The sensor is measuring the output voltage of the battery

If the battery is already weak, the slightly lower temp may be just enough to push it over the limit
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Last edited by jerseyzuks; 01-14-2007 at 07:56 AM.
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Old 01-14-2007, 08:31 AM   #15 (permalink)
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R

Search newbie, I asked this same question about a year ago.
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Old 01-14-2007, 08:32 AM   #16 (permalink)
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Ding ding ding... WE have a winnah!

Quote:
Originally Posted by jerseyzuks View Post
Smartass technical explaination to follow...

Generally, your house will be cooler at night.

Within normal operating temps, batteries will generally put out a lower voltage at a lower temp

The sensor is measuring the output voltage of the battery

If the battery is already weak, the slightly lower temp may be just enough to push it over the limit
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Old 01-14-2007, 08:39 AM   #17 (permalink)
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just get you a 9V dc converter to plug into the wall and cut the plug off the end. Strip the wires and solder the pos to one end of the battery compartment and the neg to the other end.

Just use black electrical tape to take the wire to the wall and ceiling so it's not in the way. If you happen to screw up and start a fire from doing this mod, the detector should is right there to warn you.
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Old 01-14-2007, 09:46 AM   #18 (permalink)
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I do pity you. I do.

That just made my whole week.


Quote:
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Smartass technical explaination to follow...

stop taking my threads so seriously.


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Search newbie, I asked this same question about a year ago.

I think I actually remember that.... and no, I'm not searching for it
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Old 01-14-2007, 11:28 AM   #19 (permalink)
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simple solution is you use a 110v volt unit with a battery back up but i'm an idiot and that would be to simple
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Old 01-14-2007, 12:10 PM   #20 (permalink)
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simple solution is you use a 110v volt unit with a battery back up but i'm an idiot and that would be to simple
They still chirp when the battery gets weak asshat!
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Old 01-14-2007, 01:57 PM   #21 (permalink)
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Start using 120v smoke detectors.

They are better anyway, they can be networked so that in the event that a CO detector or smoke detector goes off, the entire system goes in to alarm.
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