Bad advice. Those batteries are obviously shot. No doubt
sulfphated all to hell.

Paladin


"Bob Crantz" wrote in message . ..
| Charge them up and measure peak current into a low impedance load (short
| circuit). If they deliver their rated current they are still good, the cell
| impedance is not high.
|
| Age does not matter, past history does not matter much. Keep them topped off
| with distilled water and actually MEASURE their performance.
|
| Don't listen to these old wive's tales.
|
| Bob Crantz
|
|

--
Posted via a free Usenet account from http://www.teranews.com

http://www.homepower.com/files/desul...mpedance%20%22

"Bob Crantz" wrote...
| Charge them up

Yes, but how? Doesn't it make a difference?


| .... and measure peak current into a low impedance load (short
| circuit). If they deliver their rated current they are still good, the cell
| impedance is not high.
|
| Age does not matter, past history does not matter much. Keep them topped off
| with distilled water and actually MEASURE their performance.
|

Agreed.
A moderate or low load test over a measured time interval is
easy to do and the best way to rate battery performance.
That's better IMHO than a quick high load test, unless you
are specifically testing start batteries.

| Don't listen to these old wive's tales.
|

Hey in some cases, that's all ya got!

Paladin wrote:
Bad advice. Those batteries are obviously shot. No doubt
sulfphated all to hell.
|


If that's all, not a problem... with the right equipment, of
course.

A good charger is not expensive and makes a HUGE difference
in battery life & performance.

Fresh Breezes- Doug King

"DSK" wrote in message

A good charger is not expensive and makes a HUGE difference in battery
life & performance.


Bingo!

Battery charging is a science and must be done properly.

Gilligan wrote:
Battery charging is a science and must be done properly.


Looking thru the maintenance log of our tugboat, I saw that
the two previous owners had been replacing batteries after
about 2 years, although they carefully noted level readings
etc etc. The charger was huge buzzing ferro-resonant
contraption, cutting edge state-of-the-art 1920s technology.
I unbolted it and threw it away.

DSK

"DSK" wrote | Looking thru the maintenance log of our tugboat, I saw that
| the two previous owners had been replacing batteries after
| about 2 years, although they carefully noted level readings
| etc etc. The charger was huge buzzing ferro-resonant
| contraption, cutting edge state-of-the-art 1920s technology.
| I unbolted it and threw it away.
|
| DSK
|

Does tugboat talk really belong in a sailing news group? Do sailboats
really need batteries? Mine does just fine with no battery.

Cheers,
Ellen

"Ellen MacArthur" wrote in
message
reenews.ne
t...

"DSK" wrote | Looking thru the
maintenance log of our tugboat, I saw that
| the two previous owners had been replacing batteries
after
| about 2 years, although they carefully noted level
readings
| etc etc. The charger was huge buzzing ferro-resonant
| contraption, cutting edge state-of-the-art 1920s
technology.
| I unbolted it and threw it away.
|
| DSK
|

Does tugboat talk really belong in a sailing news group?


Yes.


Do sailboats
really need batteries? Mine does just fine with no
battery.


*Real* sailboats have batteries.



--
Scott Vernon
Plowville Pa _/)__/)_/)_

"Scotty" wrote

| Yes.

I don't think so. There are tugboat groups surely :-)

| *Real* sailboats have batteries.

My sailboat is real and it doesn't have a battery. It doesn't have a motor either.
I wonder if there are any purists here.

Cheers,
Ellen