Re: Smoke detector and rechargeable 9V battery?

[G. Morgan <alarmpro@xxxxxxxxxxx>]

On Mon, 27 Nov 2006 20:43:20 GMT, "FIRETEK"
<firetech(change-the-ch-to-k)@telus.net> wrote:

>
>"G. Morgan" <alarmpro@xxxxxxxxx> wrote in message
>news:1164572193.869629.21260@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
>> Frank Olson wrote:
>>
>> > Lithium batteries are NOT the "best choice" for smoke alarms.
>>
>> Sure they are, they last longer.
>
>Picking a battery for a smoke alarm must be predicated on four things:
>
>1.  It's gotta be "cheap"
>2.  It's gotta be easy to replace (ie. easy to find)
>3.  It's gotta meet the manufacturer's requirements
>4.  Whether it's designed to last for one year (or five), the replacement
>interval must be fixed.  We're all "creatures of habit".  It's far easier
>for me to remember my wife's birthday and use a good quality alkaline.  If
>you're bent on using lithiums and you figure you can get five years from the
>sucker then perhaps setting February 29th as the replacement date might work
>for you (that comes around every four years).  If your smoke alarm consumes
>more power, you might wind up on the "short" side of the equation, and often
>with little (or no) warning.

Lithium batts. can last 10 years in a smoke.  Since smokes need to be
replaced every ten years, you can just chunk the whole damn thing when
it starts beeping.


>>  >Making
>> > such a generalized statement is both unprofessional and unsafe.
>>
>> It was a broad statement, I should have wrote "if the manufacturer
>> permits Lithium batts then they are the best choice".
>
>"Broad statements" have gotten more guys into trouble in this Group than
>Bush at a WMD rally.

This NG seems like its filled with lay-attorneys, (and ministers).

>
>> "Choosing a replacement battery:
>> Your Smoke Alarm requires one standard 9V battery. The following
>> batteries are acceptable as replacements: Duracell #MN1604, (Ultra)
>> #MX1604; Eveready (Energizer) #522. You may also use a Lithium
>> battery like the Ultralife U9VL-J for longer service life between
>> battery
>> changes. These batteries are available at many local retail stores."
>>
>>
>http://www.brkelectronics.com/downloads/safety_products/user_manuals/smoke_alarms/Battery/manual_SA710_English.pdf
>
>
>Considering this would have "definitively answered" the OP's question, it
>would have been better to have posted this in the first place.
>

I picked this detector at random, the OP never specified which unit he
has.  I don't think he is even serious based on posts he's made in
other groups.


>> No where do they recommend replacing batts. yearly.  I think the
>> battery marketing department came up with that baloney.
>
>
>No actually, most AHJ's recommend that, and for good reason.  I wouldn't
>rely on a "low battery warning" signal from a detector that I picked up at
>Walmart for $8.95, would you?

Yes I would, and do.   It also gets tested every other time I cook.





--

-Graham

(delete the double e's to email)