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Go Back   SailNet Community > On Board > Gear & Maintenance > Electrical Systems
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  #1  
Old 08-23-2013
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Battery Configuration (pics)

I want to change the battery setup. It currently has three banks. There are two sets of batteries. The one pictured which is 3 pairs of 6v batteries. and another pair forward out of the picture. Somehow they are split into three banks. Rather than figure out what the PO had intended, I'm going to go w/ One house set (all four pairs of 6v), and a 12v starter battery.

I'm adding a refrig system, and a windlass (probably the RC108 vertical).

Should I just attach the windlass to the House bank, to the starter battery, or have a separate 12V for the windlass?

thoughts, suggestions, and pics requested :-)

thx in advance.

2013-07-27084851_zpsf69428a7.jpg Photo by roarkhennessy | Photobucket

Last edited by glymroff; 08-23-2013 at 03:20 PM.
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Old 08-23-2013
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Re: Battery Configuration (pics)

As the six Exide GC10s are co-located, I'd keep them as a single house bank. But, I'd renew all the cabling. The AWG2 is too small (should be AWG 1/0 at least), and the lugs need to be affixed with a real crimper....not the hammer kind....and with adhesive heat shrink tubing covering the crimps. The battery terminals need cleaning, too.

DSC_0024c

Crimps should look like this, before adding the heat shrink tubing.

http://wdsg.com/gallery/main.php?g2_...geViewsIndex=1

The other two golf-carts would serve well as the windlass bank. That's exactly what I've had on my boat for many years -- six golf-carts for the house battery and two golf-carts up in the v-berth area for the windlass. In my case, I charge those two with a dedicated Iota DLS-55/IQ4 battery charger which can be powered in one of three ways: shore power, onboard AC generator, or 2.5KW Victron inverter. This eliminates the long runs of heavy cable, but it does require some attention.

Use an EchoCharge or DuoCharge to maintain the start battery.

Bill

Last edited by btrayfors; 08-23-2013 at 03:51 PM.
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Old 08-23-2013
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Old 08-23-2013
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Re: Battery Configuration (pics)

Shawn, you mean your boat, or Bill's? :-)

Bill, where do I get that crimper? So are you also implying that I get a separate 12v starter too? If so what size would do? (westerbieke 40hp). Not sure what the standard alternator on that is (i'm not near the boat now).

Also do you have pics of your setup or a schematic?

Thanks for the input.
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Old 08-23-2013
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Re: Battery Configuration (pics)

Bill,

Sorry just saw your house wiring diagram. Please disregard that request :-)

Last edited by glymroff; 08-24-2013 at 06:57 PM.
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Old 08-24-2013
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Re: Battery Configuration (pics)

There are several good crimpers out there.

I prefer those by Greenlee, made in Germany.

There are two sizes of the manual crimpers: the K05-1GL which can do AWG8 to AWG1/0, and the KO9-2GL which can do AWG8 thru AWG4/0. I have both.

These are not cheap, but they'll last a lifetime if you care for them and you'll thank your lucky stars every time you use one! Here's the smaller one for sale on eBay: Greenlee K05 1GL Crimping Tool 8 1 0 AWG K Series | eBay This model is short enough to fit in a toolbox; I always carry one in mine. The larger model is much too long to fit in a toolbox, but you need it when dealing with AWG2/0-AWG4/0 lugs.

By the way, these crimpers are also great for Anderson connector pins...I have lots of the gray 50A connectors on my equipment, and the crimpers make short work of installing new pins.

Re: the diagram, yes, that's pretty close to what I have on my boat. Unfortunately, my house bank is physically split port and starboard, but I always run it as a single bank. This has worked well for many years.

Bill

Last edited by btrayfors; 08-24-2013 at 03:58 PM.
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Old 08-24-2013
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Re: Battery Configuration (pics)

Wow, that is expensive. I'll probably skip the tool, and get the ends done when ordering the wire. Not that much to have it done. Granted if I were to do this more than 3 or 4 times I would shell out the dough.

Thanks for the info, very informative.
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Old 08-26-2013
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Re: Battery Configuration (pics)

Just to confirm the recomendation:

1 house bank consisting of six 6v batteries (under qtr berth).
1 windlass bank consisting two 6v batteries (amidships).
1 12v battery for engine starter (probably right behind engine).

Thanks
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Old 08-26-2013
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Re: Battery Configuration (pics)

Quote:
Originally Posted by glymroff View Post
Just to confirm the recomendation:

1 house bank consisting of six 6v batteries (under qtr berth).
1 windlass bank consisting two 6v batteries (amidships).
1 12v battery for engine starter (probably right behind engine).

Thanks
Why not just pull the windlass loads off the house bank. You have GOBS of battery on that boat and could save some weight & create some storage by removing two of the 6V batteries. When using a windlass the engine is often running so the bank see's only the load above and beyond what the alt can provide. The windlass loads as a whole are very minimal and usually do not require an entire bank devoted to it... 900Ah's on a Tartan 37 is a lot of juice & weight..

You will also want to secure those batteries better than they are......
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Old 08-26-2013
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Re: Battery Configuration (pics)

I was wondering that about always running engine (SOP), during windlass usage, and not needing yet another battery set.

So to simplify:

1. Quarter berth set (six 6v) for house (and windlass).
2. Existing pair of 6v (under galley seat) for engine start.

YES- next on the todo list is rewire, boxing, and strapping batteries!

While not sanding and painting... :-)
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