Smoke detector and rechargeable 9V battery?

Smoke detector and rechargeable 9V battery?

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Subject Author Date
Smoke detector and rechargeable 9V battery? stu 11-25-2006
Posted by on November 25, 2006, 7:06 pm
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Is there any reason, legal or electrical why a rechargeable battery
coud not be used in a smoke detector?


Posted by Don on November 25, 2006, 7:14 pm
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because it s not recomended by the manufacturere?

> Is there any reason, legal or electrical why a rechargeable battery
> coud not be used in a smoke detector?
>



Posted by FIRETEK on November 25, 2006, 7:38 pm
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Because they tend to lose their charge faster over time and that varies with
the battery and how many times it's been charged. Nicad's also tend to
develop a "memory" which reduces their actual usefulness even more. It's
best to stick with a good quality alkaline battery and change the sucker
every year. I change ours on my wife's birthday. That way I can take care
of two whiners at once. :)

> Is there any reason, legal or electrical why a rechargeable battery
> coud not be used in a smoke detector?
>



Posted by on November 25, 2006, 7:40 pm
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FIRETEK change-the-ch-to-k wrote:
> Because they tend to lose their charge faster over time and that varies with
> the battery and how many times it's been charged. Nicad's also tend to
> develop a "memory" which reduces their actual usefulness even more. It's
> best to stick with a good quality alkaline battery and change the sucker
> every year. I change ours on my wife's birthday. That way I can take care
> of two whiners at once. :)
>
> > Is there any reason, legal or electrical why a rechargeable battery
> > coud not be used in a smoke detector?
> >

Isn't a Lithium cell more potent thanan alkaline?


Posted by FIRETEK on November 25, 2006, 8:00 pm
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Lithiums tend to have a longer useful life. I don't think they pack a more
potent charge. Most of the manufacturers recommend using alkaline batteries
and replacing them once a year.



> Isn't a Lithium cell more potent thanan alkaline?
>



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