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>>>GC batteries are available nearly everywhere. So, if one craps out you
can get another. GC batteries are relatively inexpensive for the capacity,
because they make and use so many of them. You can lift the damned things
by yourself! 8Ds, the usual choice, weigh a ton GC batteries are made to
give more deep discharge cycles than marine deep cycle batteries.<<<
Food for thought. I remember reading in Miner Brotherton's "The Twelve Volt
Bible For Boats" that a D8 weighed about 165lbs wet. That's 75kg, or three
kilos heavier than I am! I'd need a block and tackle to lift it.
How strongly made is the case of a golf cart battery? I ask because I've
seen the plastic case of a normal car battery crack in marine use when the
yacht was knocked flat in a spinnaker broach. Acid in the bilges is not
much fun.
>>>BTW, you can also use them for starting batteries, contrary to popular
opinion. So, you can have one standard battery throughout the boat.<<<
Well, why wouldn't you be able to, provided that the battery bank can
deliver the necessary high current for a short time? As I understand it,
that is mainly a function of plate surface area, so presumably a large bank
of deep cycle batteries could provide it as well as a smaller bank of
"starting" batteries. Mind you, in Singapore and Sydney our engine starting
environment is fairly benign...
Regards, Robert Bryett
Sydney, Australia.
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