Re: [IRCA] lead acid cells

["Chuck Hutton" <charlesh3@xxxxxxx>]

Powell is so right - if the use is cyclical a deep cycle battery is
definitely needed. A few total discharges will put a very serious dent into
the ability of a normal car battery to hold a charge. In fact, a car battery
can be totally destroyed by a sequence of charge-discharge cycles. I did not
realize that in my younger days.

Charging the deep cycle battery is also pretty critical. Manufacturers
generally recommend one charging voltage for batteries used in "standby"
systems and a higher voltage for "heavy use" systems. 


Chuck

-----Original Message-----
From: irca-bounces@xxxxxxxxxxxxxxxx [mailto:irca-bounces@xxxxxxxxxxxxxxxx]
On Behalf Of Powell E. Way III W4OPW
Sent: Wednesday, September 27, 2006 6:42 PM
To: WD9INP@xxxxxxx; Mailing list for the International Radio Club of America
Subject: Re: [IRCA] lead acid cells



--- "Charles A Taylor, WD4INP" <WD9INP@xxxxxxx> wrote:

> Kevin, Steve
> 
> Thanks to both of you for more insight into
> lead-acid cells. As far as
> they're concerned, I think of them
> as "car batteries," and since I don't do car stuff,
> I don't think of them.


If I were to use lead acid batteries in cyclical work,
I'd use at least a deep cycle marine battery. Better
yet a battery made for solar service. Now that tends
to get expensive.


> NiCads, on the other hand, are something I work
>with often.

> Chaz


Nickel Metal Hydride batteries are the way to go in
that type rechargeable battery technology. There is
much higher capacity. There are 12,000 ma, yeah,
that's 12 AMP D cells available. Alkalines D's are
around 18 amps, but I don't know how much is useable.
The 12 amp D cells batteries are <koff!> $25 each! 

The Lithium rechargeables I'm still afraid of....as in
catching fire AKA Sony's batteries for laptops. 


Powell





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