🚀 go-pugleaf

Bhoot Nath wrote:

> Three of the six smoke alarms in began chirping a few days back. I
> presume that this means that the 9 volts batteries must be replaced.
>
> So, we thought, rather than buying alkaline batteries, why not buy
> rechargeable ones. We already have a recharger that works with
> AA/AAA/9V etc. After a few searches at yahoo.com, excite.com &
> mysimon.com we found out that cheapest mail order is about $7, about
> the same as the nearest Walmart.

I agree with everyone else that says this is not a good idea.  At 7.2
volts, they may chirp all the time.

> 3. On a web site, I also saw a reference to "Super long lasting,
> industrial strength 9 volt alkaline batter"  for $20, about 10 times
> what a regular 9 volt battery costs. Any one has any experience with
> this kind of battery? WOuld it last 10 years in a smoke alarm?

Well, according to the packaging on the last smoke alarm that I bought, the
Duracell that came with it is supposed to last 2 years, and I can get those
for under $2, so I would think that good alkalines would be a better bet
than a $20 battery (or 3).

I can't see why one would change the battery every six months, even though
lives and property are at stake.  The alarm lets you know when the battery
is dying, and the alarm will still sound in the event of a fire.  I don't
enjoy changing out batteries where a ladder is involved, so a 2 year
changing schedule makes a lot of sense to me.

Just my $.02.

JK