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Author Topic: Battery switch issues  (Read 561 times)

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robbjd

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Battery switch issues
« on: January 09, 2022, 06:57:07 AM »

Has anyone relocated their battery switch away from the electrical panel? The panel is difficult to open fully due to the stiffness of the cables going to switch terminals. When I got  a closer look the insulating jacket on the start bank cable had been pulled back significantly (4"+) exposing 2" of bare wire. Due to the lengths of these cables I may have to run new wire depending on the final location of the switch.
John
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S/V Mystic
1997, C34 MKII, STD rig, Fin keel
Universal M35-AC
Hull #1344
Sarnia, ON, Canada

Dave Spencer

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Re: Battery switch issues
« Reply #1 on: January 09, 2022, 10:25:52 AM »

Hi Robbjd,
Congratulations on your new boat!

There are many who have relocated or even eliminated the 1 - 2 - both - off battery switch.  There are numerous project reports in the Tech Wiki here:  https://c34.org/wiki/index.php?title=Electrical 
Jon W wrote up what is likely the best document on electrical systems when he redid his Mk 1.  https://c34.org/wiki/index.php?title=1987_MK_1_Catalina_34_Electrical_System_Upgrade
There are also quite a few discussions about the battery switch and charging configuration.  Use the "search" function in the blue band at the upper left (not the more obvious search bar in the upper right).

Regarding the stripped insulation, that's definitely a problem, I would implement immediate temporary measures with some electrical tape or heat shrink to insulate the bare wire thereby preventing a short circuit on a high power system.  You can permanently address the problem (maybe with a new cable) once you've determined what other changes to the electrical system you want to make.

It will take you quite a while to figure out all the systems on your boat but you'll get there.  You'll likely find some things you'll want to change and there are many here willing to share their experiences with you when you ask the right questions.


 
« Last Edit: January 10, 2022, 06:00:06 AM by Dave Spencer »
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Dave Spencer
C34 #1279  "Good Idea"
Mk 1.5, Std Rig, Wing Keel, M35A Engine
Boat - Midland, Ontario (formerly Lion's Head)
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Stu Jackson

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Re: Battery switch issues
« Reply #2 on: January 09, 2022, 10:37:11 AM »

Welcome aboard.

In addition to Dave's suggestion to review tech wiki material about the location of battery switch(es), you can read about the various systemic OPTIONS for DC system wiring here, in the 101 Topics:

Electrical Systems 101   http://c34.org/bbs/index.php/topic,5977.0.html
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Stu Jackson, C34 IA Secretary, #224 1986, "Aquavite"  Cowichan Bay, BC  Maple Bay Marina  SR/FK, M25, Rocna 10 (22#) (NZ model)

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LogoFreak

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Re: Battery switch issues
« Reply #3 on: January 09, 2022, 10:41:36 AM »

Yikes! Good thing you could it before it shorted out. You could move the panel to where the C355 has it, just below the chart table. That’s where I plan on moving mine.
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Antoni - Vancouver BC
1992 Catalina 34 Tall rig fin keel mk 1.5 “Polonaise”
Hull number 1179

Ron Hill

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Re: Battery switch issues
« Reply #4 on: January 09, 2022, 03:01:34 PM »

rob : It looks to me as though something had been on that bare wire!! 

I'd just take some heat shrink and slide it on to cover that wire.  Be sire to use a heat gun to shrink that tubing!

A few thoughts
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Jon W

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Re: Battery switch issues
« Reply #5 on: January 09, 2022, 03:27:04 PM »

Like the others have said, cover those bare wire sections with tape or heat shrink tubing.

I relocated the 1-2-Both switch to the side of the battery compartment. At the same time I took it out of the charging system so it's now just a battery selector switch. House, Reserve, Both. Shorter cable runs, more aligned with current ABYC, and frees up space on the distribution panel.
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Jon W.
s/v Della Jean
Hull #493, 1987 MK 1, M25XP, 35# Mantus, Std Rig
San Diego, Ca

waughoo

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Re: Battery switch issues
« Reply #6 on: January 09, 2022, 07:53:23 PM »

My plan is for a blue sea remote battery switch.  This will require two (for my set up): one for house and one for start.  But it will completely remove the long cable runs for load and charge.  I am still at the very start of this project, but it would be a possible solution for your problem.
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Alex - Seattle, WA
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Std rig w/wing keel
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Belafonte

Patches

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Re: Battery switch issues
« Reply #7 on: January 10, 2022, 10:31:34 AM »

I also followed Jon's lead when updating my electrical system last year, and placed the main battery switch where he did on the side of the battery compartment.  Also wired the charging directly to the house bank. I led power from the new main battery switch to a new Perko "On/Off" switch at the panel--which fit the existing hole when I removed the 1-2-Both switch there.
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robbjd

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Re: Battery switch issues
« Reply #8 on: January 10, 2022, 02:46:56 PM »

Thank you for all the suggestions. WRT the residue on the cable's insulation, the previous owner had put bands of electrical tape to "label" his wires. One band for the house, two for the starting battery. He also used several metres of red electrical tape to make black welding cable RED  I'm in the process of replacing 4, 6 volt house batteries with 2 lithium 12 volt 100 Ah batteries, replacing an outdated solar charge controller with a Victron 100/30 blue smart controller, and installing a Victron Orion TR smart isolated DC/DC charger. The bare cable has been disconnected at both ends and taped. I like the idea of moving the switch to the battery compartment and having only one heavy gauge wire in the panel. As I explore the electrical system of this boat I'm finding many heat shrink connectors that were never shrunk!! So much more reading to do! Thanks again for the links!!
John
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S/V Mystic
1997, C34 MKII, STD rig, Fin keel
Universal M35-AC
Hull #1344
Sarnia, ON, Canada

Ron Hill

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Re: Battery switch issues
« Reply #9 on: January 10, 2022, 03:07:10 PM »

rob : Just make sure you use a heat gun!!  Harbor Freight has the for just a few $$

A thought
« Last Edit: January 10, 2022, 03:11:46 PM by Ron Hill »
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Ron, Apache #788
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