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RE: [PSUBS-MAILIST] Battery question
Wrong, good sir. Those decision won't be made at all without quite a bit
more consideration. I'm asking for all the information on battery choices
from all the "info guys", and anyone else with info. Cost is a prime
consideration. Got any info or practical experience? Gimme.:)
Warren.
> There may be other considerations that should be examined. What about energy
> storage density differences between the two batteries? What are the amp/hour
> differences, and what are the displacements of the two choices? Also, I don't
> think the cost factors were examined very carefully. I believe that AGM
> batteries are about 3 times more expensive ( metric conversion = 3 times more
> expensive :) ). It seems that decisions are being made without much consideration.
>
> Jeff
>
>
>
> Quoting Warrend Greenway <dub@linuxmail.org>:
>
> > Sounds good. I'll just wait a bit before making a decision, then!
> > :)
> >
> > Warren.
> >
> > > Solo has AGMs inside the pressure hull. One of the more bizarre design
> > details is they're mounted on the "ceiling" instead of the floor. This
> > is to raise the center of gravity, since its a flyer and I'm trying to
> > reduce the self-righting moment. And if that wasn't weird enough,
> > they're upside down so I can get at the lugs.
> > >
> > > My main recommendation for battery safety using AGMs is to invest in a
> > really good charger to prevent H2 gassing. I got a "Truecharge 40",
> > which was about 400 odd bucks. Its microprocessor controlled and
> > designed specifically for AGMs, which have a different charging voltage
> > than other technologies.
> > >
> > > We'll see if it all blows up once completed.
> > >
> > > :)
> > >
> > > Alec
> > >
> > > -----Original Message-----
> > > From: Warrend Greenway [mailto:dub@linuxmail.org]
> > > Sent: Tue 1/28/2003 1:43 PM
> > > To: personal_submersibles@psubs.org
> > > Cc:
> > > Subject: Re: [PSUBS-MAILIST] Battery question
> > >
> > >
> > >
> > > I know about the hydrogen venting during charging cycles. So if
> > > they are in the hull do you just open the hatch and stay clear
> > > when you are charging? Is there any problem while discharging?
> > > I know you have to keep the batteries dry...
> > >
> > > Warren.
> > >
> > > > Loading battery is the problem.. creates hydrogen fummes.
> > > >
> > > > Hatch should be open and airventilation by little
> > > > pipe on a hose should fix it.
> > > >
> > > > On a diesel-electric sub the diesel can eat the hydrogen during
> > > > chargeing the batteries.
> > > >
> > > > Carsten
> > > >
> > > > Warrend Greenway schrieb:
> > > > >
> > > > > Hey, I have a battery question, for those information buffs: What
> > would
> > > > > the overall dangers and benefits of placing the batteries inside
> > the
> > > > > pressure hull be? What do you do about battery venting, if they
> > are in
> > > > > water-tight battery pods? This isn't random, I was laying out
> > parts of
> > > > > the OSS pressure hull and found that the batteries fit neatly
> > inside the
> > > > > base of the hull. They could be sealed with an air tight bolt-on
> > deck.
> > > > > Any input? Should I give this up now and place the batteries in
> > pods
> > > > > outside the hull??? Any input would be great!
> > > > >
> > > > > Also, for those info buffs, what about compiling a list on
> > applicable
> > > > > battery information for review?
> > > > >
> > > > > Warren.
> > > > > --
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>
>
> Jeff Post
>
> Everything can be inherited except sterility.
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