[PSUBS-MAILIST] Batteries
Alan James via Personal_Submersibles
personal_submersibles at psubs.org
Wed Nov 23 16:50:03 EST 2016
Thanks Scott,just needed to know it was doable.Alan
From: via Personal_Submersibles <personal_submersibles at psubs.org>
To: Personal Submersibles General Discussion <personal_submersibles at psubs.org>
Sent: Thursday, November 24, 2016 10:30 AM
Subject: Re: [PSUBS-MAILIST] Batteries
Alan,
I just have it hard wired into the submarine electrical system. A simple switch turns it on and off.
Thank you,
Scott Waters
> -------Original Message-------
> From: Alan James via Personal_Submersibles <personal_submersibles at psubs.org>
> To: Personal Submersibles General Discussion <personal_submersibles at psubs.org>
> Subject: Re: [PSUBS-MAILIST] Batteries
> Sent: Nov 23 '16 15:07
>
> Scott,
> already sold my house & living in a cardboard box. (well small unit)
> But where could you buy an education or experience like we are
> getting?
> I had a look at a video on the CDK-6 conversion kit. It says you
> have to unscrew the fitting from the SSB 2010 unit to turn off the
> power!
> Normally for a diver the power comes on automatically when the unit is
> underwater.
> Did you put a switch on this or were you still screwing-unscrewing to
> turn the power on & off. Or did you wire the unit to your submarine
> battery supply.
> Also when mounting the transducer where is the best position?
> If you mount it low you would have communication through it on the
> surface,
> or is this distorted in wavy conditions.
> If you mount it high you would have less interference. Yes?
> Cheers Alan
>
> -------------------------
> FROM: via Personal_Submersibles <personal_submersibles at psubs.org>
> TO: Personal Submersibles General Discussion
> <personal_submersibles at psubs.org>
> SENT: Thursday, November 24, 2016 9:18 AM
> SUBJECT: Re: [PSUBS-MAILIST] Batteries
>
> Thank you for the in Alan. I am quickly finding that nothing in deep
> sea vehicles is cheap. haha. Thrusters for $68,000. Tracking system
> for $53,000. Pressure testing for $26,000. Comms for $29,000. So yup,
> I'm selling my house and gonna live in a cardboard box, but at least
> I'll have fun doing it. haha
>
> Thank you,
> Scott Waters
>
> > -------Original Message-------
> > From: Alan James via Personal_Submersibles
> <personal_submersibles at psubs.org>
> > To: Personal Submersibles General Discussion
> <personal_submersibles at psubs.org>
> > Subject: Re: [PSUBS-MAILIST] Batteries
> > Sent: Nov 23 '16 14:05
> >
> > Scott,
> > if you do a google image search on lithium iron "internal" or
> > "assembly"
> > or something like that, you find lots of variations. Some are
> > cylinders
> > stacked inside a square container, sometimes stacked vertical,
> > sometimes
> > horizontal; so lots of air pockets. Others are plates.
> > In the case of SWE the battery internals can take massive pressure,
> > but
> > you couldn't guarantee that with every battery on the market. I
> would
> > assume they could but wouldn't be positive.
> > If I were doing a hack I would get a dead battery of the type I was
> > looking
> > at & cut the top off to see how I would do it. (did that with my AGM
> > battery hack)
> > You could possibly take the tops off the batteries or drill holes in
> > the
> > tops of every cell to let any air escape when you oil filled them.
> > Then
> > put your battery pack in a box with a neoprene diagphram over the
> top
> > & oil fill.
> > Like Hank is intending to do, or they do with the Deep Sea Power &
> > Light
> > Sea Battery (AGM).
> > My lithium batteries don't have individual cel balancing electronics
> > that I
> > can see. Some have them external to the battery. All I required was
> a
> > 48V
> > battery charger if I was assembling 4 x 12V into a 48V pack.
> > Hugh's batteries were a bit more complex & he had a bad experience
> > through
> > not regularly charging them.
> > Having said all that, when I talked with SWE I believe they were
> > applying
> > for ABS type approval, or something similar. If you are wanting
> > certification
> > you may get knocked back on a lithium battery hack.
> > If it were me I would go & see them & pick their brains. You may
> find
> > out
> > how to do it yourself, or they may do a good deal for you.
> > I am building my own thrusters to save money, but some times it's
> > cheaper
> > to buy it off the shelf when you cost out your time & the resultant
> > inferior product. :)
> > Cheers Alan
> >
> > -------------------------
> > FROM: via Personal_Submersibles <personal_submersibles at psubs.org>
> > TO: Personal Submersibles General Discussion
> > <personal_submersibles at psubs.org>
> > SENT: Thursday, November 24, 2016 7:19 AM
> > SUBJECT: Re: [PSUBS-MAILIST] Batteries
> >
> > Thank you for that info Alan. I am sure they charge plenty for it
> > being pre-fabed for underwater work. I was hoping to take lithium
> car
> > batteries and see if there was a way to oil compensate them.
> >
> > Thank you,
> > Scott Waters
> >
> > > -------Original Message-------
> > > From: Alan James via Personal_Submersibles
> > <personal_submersibles at psubs.org>
> > > To: Personal Submersibles General Discussion
> > <personal_submersibles at psubs.org>
> > > Subject: Re: [PSUBS-MAILIST] Batteries
> > > Sent: Nov 23 '16 12:05
> > >
> > > Scott,
> > > these people sell sub sea lithium battery packs. I spoke with them
> > at
> > > the
> > > underwater intervention convention a couple of years back.
> > > They gave me a T shirt :)
> > > Southwest Electronic Energy Group (SWE) | Custom advanced battery
> > > solutions for the oil and gas industry SWE | Southwest Electronic
> > > Energy Group
> > >
> > > SOUTHWEST ELECTRONIC ENERGY GROUP (SWE) | CUSTOM ADVANCED BATTERY
> > > SOLUTIONS...
> > >
> > > Southwest Electronic Energy Group (SWE) designs and builds custom
> > > advanced battery solutions for oil and gas, se...
> > >
> > > -------------------------
> > > FROM: via Personal_Submersibles <personal_submersibles at psubs.org>
> > > TO: PSUBS <personal_submersibles at psubs.org>
> > > SENT: Thursday, November 24, 2016 6:46 AM
> > > SUBJECT: [PSUBS-MAILIST] Batteries
> > >
> > > Does anyone on psubs have experience in oil compensating lithium
> > > batteries? The only time I have known this to happen is in James
> > > Cameron's deep sea challenger. I have tried to get answers from
> > their
> > > engineering staff, but have had no luck so far.
> > >
> > > Thank you,
> > > Scott Waters
> > > _______________________________________________
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> > > Personal_Submersibles at psubs.org
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>
> >
> > >
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