Re: Smoke detector and rechargeable 9V battery?

[<hapticz@xxxxxxxxxxxxx>]

i think he was just pushing lithium technology  as a CELL not a rechargable.

have seen adt remote sensors run for 2 yrs on a single N size lithium

they are specialized curcuits that draw microamps to ensure long performance
from the battery.

so little amps,  it is actually the battery that wears itself out!

but i think lithiums are actualy NOT rechargable anyway.


"Tommy" <tommy at leesecurity.net> wrote in message
news:12mkc7qpmf1hgcd@xxxxxxxxxxxxxxxxxxxxx
> You have been given answers to your question, and still want to argue your
> point.
>
> Either use a battery that the manufacturer reccommends, be it alkaline or
> lithium or hamster in a wheel connected to a generator.
>
> OR, do what you so desperately want to do and want us to approve of (which
> no one here most likely will) and accept the consequences. I know what i
> would do.
> RTFM and follow the instructions
>
>
>
> <stu@xxxxxxxxxx> wrote in message
> news:1164581446.828892.117060@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
>
> hapticz@xxxxxxxxxxxxx wrote:
> > they dont hold charge long enough.
> >
> > most alkaline will disharge slow enough to supply for a year.
> >
> > most ni-cad  ni-mh  and other will retain adequate charge only for abt a
> > month, then need refresh
> >
> > standard alkaline and zinc/acid batts actually create power from a
> > chemical
> > reaction,
> >
> > recharge types ones are only poor storage devices.
> >
> > <stu@xxxxxxxxxx> wrote in message
> > news:1164499591.585787.326960@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
> > > Is there any reason, legal or electrical why a rechargeable battery
> > > coud not be used in a smoke detector?
> > >
>
> http://www.sanyo.com/batteries/lithium_ind.cfm
>
> Lithium Batteries
> What is a Lithium Battery?
> It's a battery that uses lithium metal or a lithium aluminum alloy in
> its negative electrode (anode) and manganese dioxide in its positive
> electrode (cathode). SANYO's primary lithium battery (CR series) was
> first released in 1976 and its secondary (rechargeable) lithium battery
> (ML series) was released in 1989. These batteries meet market needs
> with their high technology and superior quality.
>
> CR Series Features
>
>
> High operating voltage of 3V and high energy density
>
> Wide operating temperature range: -40°C to 85°C (depending on type)
>
> Low self-discharge rate (0.5% per year at room temperature)
>
> High capacity cylindrical type
>
> UL approved
>
> SO9002 certified
> ML Series Features
>
>
> High operating voltage of 2.5V
>
> Wide operating temperature range: -20°C to 60°C
>
> Low self-discharge rate (2% per year at room temperature)
>
> Superior charge and discharge cycle
>
> Able to charge at 2.8V
>
> UL approved
>
>