Sage 15 & SageCat electrical

Discuss the Jerry Montgomery designed pocket cruiser SAGE 15 (sloop) and SageCat (catboat version of the Sage 15)

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scoob
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Sage 15 & SageCat electrical

#1 Post by scoob » Tue May 23, 2017 3:47 pm

How much should one complicate a 15′ boat? This has been a primary discussion during development of the Sage 15/SageCat. One area a boat can be made complicated is with an electrical system. Water isn’t friendly to electrical components and the vibrations a trailerable boat experiences going down the road are equally unkind. There is also the issue of cost … the more extensive the electrical system the price increases. Marine rated components are expensive as is the time to install all the parts.

For the Sage 15/SageCat (S15/SC) the focus is on what can be installed quickly and with the least cost while not cutting corners on the quality of the installed system. Looking at how the boat will be used the electrical system solves these problems –

*charging handheld devices: cell phone(s), GPS, VHF and laptop/tablet computer
*cabin lighting
*running lights
*anchor light


Wiring for running and anchor lights is extensive. The installation of the wiring also complicates boat assembly. With this in mind the offing will be battery operated LED lights that are US Coast Guard certified. Details on these lights and there installation and use will be covered in a later post.

Now for handheld charging and cabin lighting a smaller battery can be used and the amount of wiring is significantly decreased. The plan is to have a U-1 battery, a battery charger, a couple of 12V charging ports and a cabin light.

Schematic to figure the needed components -
IMG_20170522_170530489_HDR.jpg
IMG_20170522_170530489_HDR.jpg (118.68 KiB) Viewed 2203 times

Components ready for installation-
IMG_20170522_170401120.jpg
IMG_20170522_170401120.jpg (138.27 KiB) Viewed 2203 times

With the parts on hand placing them in the boat begins …

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scoob
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Re: Sage 15 & SageCat electrical

#2 Post by scoob » Thu May 25, 2017 10:56 am

the initial install of parts has been completed -
initial install of parts.jpg
initial install of parts.jpg (71.23 KiB) Viewed 2180 times
top left is the 12V ports, both 'socket style' and USB.

bottom left is the battery master.

bottom right is the charger extension cord hookup

far right is the cooling vent for the battery charger. the charger is attached to this 1/2-bulkhead inside the starboard v-berth locker.

RickCA
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Re: Sage 15 & SageCat electrical

#3 Post by RickCA » Thu May 25, 2017 3:42 pm

Looks great!

The battery shown above appears to be larger than a U-1 which I understood was the original plan. Is the one in the picture just for the prototype?

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scoob
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Re: Sage 15 & SageCat electrical

#4 Post by scoob » Thu May 25, 2017 3:54 pm

RickCA wrote:Looks great!
thanks!

RickCA wrote:The battery shown above appears to be larger than a U-1 ...
it is a U-1 pictured ... 32 amp AGM.

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