Re: Rechargeable Smoke Alarm Batteries?

["Frank Olson" <feolson@xxxxxxxxxx>]

"DavidB" <#DavidB6061#@sbcglobal.net> wrote in message
news:432c4529.438702842@xxxxxxxxxxxxxxxxxxxxxxxxxxxx
> My Smoke & CO2 Detectors are not connected to an alarm system and I am
> tired of changing batteries. Since the alarms have A/C, couldn't the
> A/C be continually charging a backup battery in the detector? I have
> looked without success - where do I find Smoke/CO2 Detectors with
> rechargable battery backups; do they make such a thing?

No.  Supervised 12 or 24 VDC units powered by an alarm panel that has
rechargeable batteries is the best way to go.  Since you're talking a "life
safety device", there is no way a manufacturer is going to "stick" a
*supervised* charger system into a 120 VAC smoke alarm/CO detector.  The
expense would not be warranted and I doubt you could effectively market such
a product.  Only people such as yourself would recognize the benefits.  When
deciding between a smoke alarm that costs $110.00 and one that's $9.95, you
can pretty well guess which one the builder/electrical contractor's going to
use.