"Gould 0738" wrote in message
...
has "been brought up" to 13.2 Volts, it only means that the charger can
sustain
that Voltage. Immediately after removing the charger, the Voltage will still
be
artificially high.

"Fully charged" is not "artificially high."

Do you dispute that the voltage of a battery
cell is 2.2 volts? Yes or no answer please.

Sure, I'll dispute it. While the voltage of an ideal cell might be higher, the
"open circuit voltage" of a modern marine battery such as a Rolls (like you
have) or a Trojan (like I have) will be somewhat lower, perhaps 2.13 volts or a
tad less. If you have any doubt, you can look at the Rolls site or the Trojan
site.
http://www.rollsbattery.com/Bulletins/600.htm
http://www.trojanbattery.com/custome...erymaint4.html

Of course, to properly measure this, you have to wait a little while (at least
10 minutes, better after an hour or more) for the battery to stabilize
internally.

Now you can probably find 1000 sites oriented towards high school chemistry and
physics labs that say 2.2 volts, but I claim they are all trumped by the people
that build and maintain actual marine batteries, which are, after all, a
slightly different formulation than the traditional lead acid battery.



Do you dispute that 6 x 2.2 = 13.2?
Yes or no answer please.

Duh. Garbage In Garbage Out. You're really trying hard to be a horse's ass
here, aren't you?



After the battery self discharges a bit, it will stabilize about 12.6 or so.

It isn't self discharge. If you read the quote from Calder you would understand
that. The battery charger can induce a "surface charge" that is not
representative of the actual state of charge.



But it has
self discharged to get to that level, and while it may be "adequately" charged
or even "typically" charged, a battery cell is not fully charged until it gets
to 2.2 volts.

Actually, that's not the issue at all. The issue is that the cell can read 2.2
volts and NOT be fully charged. Any battery that has been charging for a while,
regardless of what state of charge it has reached, might read 13.2 volts
immediately after removing the charger. That's why its meaningless.

Are you claiming that if you can ever read 13.2 volts from a battery it must be
fully charged?
Yes or no answer please.



Nigel Calder not whithstanding.

Yes, we know that the opinion of experts and all of the other observers is not
good for your argument.



It's basic physics.

No. Its marine batteries. Sometimes real life is a bit different from what you
read in a high school textbook.