Re: Rechargeable Smoke Alarm Batteries?

[Marc F Hult <MFHult@xxxxxxxxxxxxxxxxxxxxx>]

On Sat, 17 Sep 2005 21:01:36 GMT, "Frank Olson" <feolson@xxxxxxxxxx> wrote in
message  <Qu%We.216375$Hk.35598@pd7tw1no>:

>
>"Marc F Hult" <MFHult@xxxxxxxxxxxxxxxxxxxxx> wrote in message
>news:l8moi11355b5vg8r3a0fk19p95p7186nho@xxxxxxxxxx
>
>>
>> In my previous post, I considered also suggesting a DIY 'solution' but
>> then
>> thought better.
>>
>> Then Frank posted this response which is better than my better ;-)
>>
>> Thanks ... Marc
>> Marc_F_Hult
>> www.ECOntrol.org
>
>
>In your previous post you'd stated that there may be some European smokes
>out there with rechargable batteries.  Do you have a link to (or information
>on) one??
>

I don't think I saved the search. It started by my looking for/at a UK gizmo
that sensed the voltage drop on the 9-volt battery in a detector and could make
a contact closure out of that. Seems to me that at that time I saw some
recharging circuits for 9-volt batteries in detectors too (not specifically with
rechargeable batteries) but don't hold me to it. -- Not much help, was I ;-)

(Ahemmmm..This could probably be accomplished with many AC powered detectors
using an LM2937ET-10 from www.digikey.com and a couple of diodes ;-)

Marc
Marc_F_hult
www.ECOntrol.org