Comments below.

Doug
s/v Callista

"Larry W4CSC" wrote in message
...
"Doug Dotson" wrote in
:


Of course. I have an 800A T1 fuse close to the battery.

Please change it....if not for the kids, for me. Fuse the battery at 150%
of the maximum normal load on them. Just add up the breakers in the
panel,
you'll never draw that much. Make the fuse smaller if the breaker panel
is
lightly wired. NO BREAKER PANELS ARE PRIMARY WIRED FOR 800A, unless
you're
driving a freighter!

Draw 800A for 60 seconds and I'd bet the batteries will EXPLODE in a
sulfuric acid steam. Wanna try it?

I'm tired. It's a 200A, oops! Sorry.


Nothing special about lead-acid. My AGMs and gels will melt a wrench
in pretty short order as well.


Wet cells are "water cooled". AGMs and gels WILL explode in a much
SHORTER
time because they are so compact with no chance of any electrolye
circulation. If you short any of them, of course, the acid steam
explosion
is nearly instantaneous.

I think that is why we have the fuse. So that point is moot. I doubt if the
electrolyte circulation in an enclosed space will buy much additional time,
maybe a few seconds. I wonder why most military vehicles including all
aircraft switched to AGM years ago if their failure mode is so
catastrophic?

Wanna bet it melts the cheap plastic case?....

I can't tell any difference between the quality of the case in my Trojan
T-105s I had in my old boat vs the case of my 8D AGMs I have now.
I do think the maroon T-105s were much more attractive than the
battleship grey AGMs though

Larry