[PSUBS-MAILIST] Power sources

[Rick Patton via Personal_Submersibles]

I had some difficulty in inserting my batteries the other day into the pods
because of how close the battery lugs were to the wall of the pod. I had
built an aluminum tray for the batteries to make it easy to install and
remove them for maintenance and used 1/4" aluminum flat bar to fabricate
them but I had to do away with the trays because of clearance issues and so
even though that only bought me a 1/4" of an inch, I needed all the help I
could get. It also helped in having the battery cables slide over the tops
of the fill caps more easily when attached to the all thread that passes
the power into the sub as they flex and bend when pushing it in after
attaching.

Anyone else that is building a K-350 have that same problem? I welded two
pieces of SS angle in the pods for the trays to slide on and can't remove
them and lower them as they were put in before I welded the ends on. As
they go down, they come together being pipe so I couldn't of gone much
lower with them and still have the horizontal room to fit the batteries.

I also wanted to buy a couple of Psubs stickers that I have seen on other
peoples boats and tried to do that on our web site but I didn't have any
luck finding the store that would have them for sale. Any ideas?

Rick


On Fri, Jun 16, 2023 at 7:20 AM John Bussard via Personal_Submersibles <
personal_submersibles at psubs.org> wrote:

> Grateful for all the info here.  While I was vague and only stated “Li
> ion” I definitely have no fixed start point, so this is all good to learn
> about.  And certainly echo Busby that one needs to consider weight for
> ballast purposes as well.  I’ve spent most of my life around airplanes, so
> a slightly different approach to weight reveals itself, though CG
> management is a common theme here.
>
> Thanks to all for the info and discussion.
>
> On Jun 3, 2023, at 7:51 PM, Michael Holt via Personal_Submersibles <
> personal_submersibles at psubs.org> wrote:
>
> I was sent some *Waterways World* magazines from 2020, a couple of years
> ago.  There are advertisements for electric power systems for canal boats.
> They start with diesels tied to generators tied to batteries that drive
> 48VDC motors.  There appear to be versions that have no diesels involved,
> and the batteries are recharged from shore power.  In the UK, that's 230VAC.
>
> If anyone's interested, I'll dig out the magazines and make a list of the
> websites.
>
>
> Mike
>
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