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Hi Scott,
Maybe this book would help.
It's the "12 volt bible for boats". Written for laymen by
a professor of marine electronics who's a boaty.
It's a classic, there's probably one in a store near
you.
Alan
----- Original Message -----
Sent: Friday, February 26, 2010 12:40
PM
Subject: [PSUBS-MAILIST] 36V verses
24V
Ok. So I want to make sure I got all the facts straight. (This
is for my K-350)
36volt:
Advantage - More effecient
power
Advantage - Has ability to provide more thrust (good in current or
dangerious situations)
Advantage - Last longer and won't overheat as
likely
Disadvantage - Need second tru-hull (from pod to hull) because of
gauge of wire
Disadvantage - difficult to charge because of 12V and 36V
both in pod
Disadvantage - more money for wire and
parts
12volt:
Advantage - Easyier to wire (no need for extra
tru-hull
Advantage - Easy to charge
Advantage - Costs
less
Disadvantage - Less effecient power
Disadvantage - Less thrust (not
100% sure will have enough power, snoopy is 12V and works, but it is smaller
sub)
Disadvantage - Won't last as long, possible overheating in extreme
situations
I am stuck in between a rock and a hard place as what
to do. I want to do the 12volt, but am worried it won't have the power I need.
I don't understand the K-350 plans as how to get the power from the pods to
the hull. I assume you run it through the aft battery vent and actually vent
with the forward vent. The blueprint only showes 2 vents per pod, yet I
noticed on Persistance there is a 3rd tru-hull. That is one of the 3 main
issues. The second is how in the world does the charging work with a 36V and a
12V in the sub. I can only think the way to do this is either have a 36V
charger and a 12V charger or take all the batteries out and charge them
separately. The 3rd issue is will a 12V system have enough power to run the
motors with enough thrust for a K-350? I heard that Snoopy is all 12V and
manuvers fine, but Snoopy is a K-250. I am pretty much at a stand still
till I get this problem solved. The next step is attaching the battery pods,
but I don't want to do that if I need a 3rd tru-hull.
Any help is greatly
appriciated.
Thanks,
Scott Waters
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