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Old 10-25-2010, 01:04 PM   #1
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12V converter/battery/monitor upgrade

Hi all, (2007 Classic 30')
I'm getting ready to upgrade my converter to an Iota DLS 55 w/IQ4, and add a BatteryMINDer OBD-12, a Tri-Metric TM-2025RV to go with my 2 new group 29 flooded cell batteries. The trailer is in storage some distance from the house and I am trying to make sure I have all the supplies and knowledge I need prior to the travel to install.

I have no issues with the Iota and the BatteryMINDer install. My question pertains to the 500 AMP shunt install for the Tri-Metric. I'm a little confused on the ground circuit when comparing the pics to the VERY vague wiring schematic in the owners' manual.

It appears to me that the 2 black cables run directly from each battery to this ground block. Is that correct? If so, is the bare copper wire the main block to chassis ground? I see 5 additional grounds. From the schematic I know I have:

1) converter ground (the fat one)
2) Umbilical cord ground
3) Brake actuator ground
4) ????
5) ????

AS schematic doesn't show the other two. Anybody know what they are?

My thought is that the shunt should be mounted to the electrical center box wall next to the ground block, the 2 battery to block ground cables should connect to one side of the shunt and I should run 2 new grounds from the other side of the shunt to the present battery ground locations in the ground block. Is that correct?

Also, the positive battery cables are 6 ga. and the negative cables are unmarked....that I can see from the pics I have. Are they also 6 ga? I would assume so, but I thought someone might know for sure.

How hot does the shunt get? Do I need to shield it from the wood electrical center box? Perhaps mount it in the airflow exiting the converter?

By the way, What is the black box mounted in the rear of the center, in the upper right of the photo? Ive never pulled the cover off.

Thanks for helping!
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Old 10-25-2010, 06:37 PM   #2
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Do you realize the Iota is a thee stage battery charger? Thats why I put one in mine
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Old 10-25-2010, 07:14 PM   #3
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Yes, I completely understand that. That is the reason for the conversion. I am not sure what that has to do with my question?????
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Old 10-25-2010, 07:16 PM   #4
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Oh, I think I get your point. The BatteryMINDer OBD-12 is not a charger...it is a desulfator.
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Old 11-11-2010, 02:12 AM   #5
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Can't help you with your question, but I'm thinking of doing the same thing to my International CCD (25ft, 2005) too. Please post up any tips/pics when you are done! Thanks!
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Old 11-11-2010, 06:19 PM   #6
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Well, the installation was pretty straight forward. The Iota is just "plug and Play", replacing the old Parallax. I mounted the shunt for the tri-metric monitor in the left sidewall of the power center. I know, the two ground wires are RED. I recycled some new but unused battery cables I had laying around the garage. I did clearly mark them as "neg" with a Sharpie though. No comments, please. The existing Neg battery cables were removed from the ground block and attached to the appropriate end of the shunt.
Since there were two 8ga battery cables running from the batteries, I felt that two 8ga cables were appropriate from the shunt to the ground block, so as not to introduce any potential additional resistance.
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Old 11-11-2010, 06:25 PM   #7
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The Tri-metric monitor panel was hooked up to the shunt in the picture in the above post, per it's VERY thorough instruction manual. You will want to spend some time with this manual in order to fully understand the system install as well as programming.
I simply ran the monitor cable under the couch into the arm storage compartment and ran it up the wall inside the table compartment, and out to the monitor. Right now I just have the monitor velcro'ed to the mouse fur. I am not sure where I want it permanently, so I decided to keep it less intrusively installed till I see what I like. (uh...I mean what "momma" will tolerate).
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Old 11-11-2010, 06:34 PM   #8
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The BatteryMINDer OBD-12 is NOT a charger of any type. It is a desulfator which only "turns on" when it sees a little over 13V. So it is in operation whenever on shore power or TV charging. (I suppose Solar too???? I don't have solar so I haven't spent any time studying up on it in depth).
Install is just running the positive cable of the OBD-12 to one battery positive post and the negative cable of the OBD-12 to the negative post of the OTHER battery.

The hardest part of this step was running the 14ga wire through the rubber gasket into the battery boxes. It was a little like pushing a cooked spaghetti noodle uphill. By the way, all of this install is MUCH easier if you take the time to remove the couch.
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Old 11-11-2010, 06:37 PM   #9
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This is the final view of the power center with the install complete.

Now the hard part....waiting till spring to use this upgrade as well as whatever else I dream up this winter!
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Old 11-11-2010, 06:41 PM   #10
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OOOPs, I always see something wrong AFTER I post. All the battery cables are 6ga, not 8ga. Sorry.
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Old 11-14-2010, 12:56 AM   #11
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Fantastic explaination and photos. You have a great set-up now and did a remarkable job explaining what you did and why.
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Old 11-14-2010, 03:56 AM   #12
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I insert this device....

http://www.victronenergy.com/upload/...%20UK02-08.pdf

Greetings from Switzerland
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Old 11-14-2010, 12:33 PM   #13
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Originally Posted by cruiser54 View Post
I insert this device....

http://www.victronenergy.com/upload/...%20UK02-08.pdf

Greetings from Switzerland
Werner
That's what my doctor said, as I began to sing....MOOOOOOOOOOOOON Riverrrrrrr......"
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Old 11-15-2010, 04:24 AM   #14
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I do not understand the answer, my computer makes a crazy translation....
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