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Old 10-03-2016, 06:50 PM   #1
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Trimetric 2030 RV battery monitor

Has anybody with a 19" Bambi installed one? Or anybody? Just looking for installation insight if possible. Thanks, Woody
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Old 10-03-2016, 11:05 PM   #2
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Quote:
Originally Posted by amazingwoody View Post
Has anybody with a 19" Bambi installed one? Or anybody? Just looking for installation insight if possible. Thanks, Woody
I installed a 2025 in our SOB (19 foot Wanderer). I got a plastic (outdoor style) 5" square, 3" deep electrical box with pipe ports and mounted the current shunt in it and then mounted the box to the trailer frame just below the front of the trailer body shell. Cut a hole in the interior wall next to the water pump control, then used a fish tape to find my way from that hole down to the under-counter space where the rest of the wiring came out. Once I had that, I pulled the sense wiring from the wall to the hole, then further through the trailer floor and forward to the shunt box. I moved the ground lead from the battery over to the shunt, and put a new four foot section of 2 or 4 gauge battery lead from the shunt to the battery negative post. The Trimetric battery voltage sense hooks up to the positive battery post with a fuse.

I think that in all I probably spent about six or eight hours on it, but a substantial part was in the planning of where stuff was going to go and where I was going to run the wiring. The electrical hookup itself is very simple and the instructions are clear.

And yes, I will absolutely install another one (or make sure we have the equivalent functionality) in our Tradewind when we get the electrical back together. Without knowing amp-hours in and out, you know nothing about the state of charge of the battery. The instantaneous and convenient display of current and voltage condition is also great to have.
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Old 10-04-2016, 04:46 AM   #3
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Hi Alumineer
Thanks for the reply. I had some thoughts on installation and was looking for other's thinking. Thant is exactly what you provided. Thank you.I had a similar monitor installed on my sailboat. Like you I'd never be without one again. I do mostly boondocking. I'm going to look at your option as it relates to my unit when my monitor arrives. My thought (not sure this will work either) was to catch ground cable as it enters the trailer. Cut it, install two new lugs and insert the shunt between the cut. If that doesn't do it your option sounds like a good alternative. I'll post how it goes. Thanks again. Woody
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Old 10-04-2016, 05:28 AM   #4
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Woody,

I am not familiar with the Bambi but on my 25 I installed the shunt in the battery box and pulled the other wires into the front of the trailer through the normal routing. I installed the display in the forward hanging locker as it was easiest to get the wires there.
Larry
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Old 10-04-2016, 07:20 AM   #5
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Thanks Larry. Any issues with removing your batteries for whatever reason? That thought also entered my mind but I'd have to go out and look first.. Woody

Update: Just ran out to look in battery box. Hmmm, possible. Without having shunt in hand, suspect a very tight fit. However, maybe adding a weather proof to the "outside" of battery box might be the ticket. Stay tuned.........
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Old 10-04-2016, 09:36 AM   #6
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My box holds the two stock Group 24 AGM's and there was room for the shunt. I used crushed copper pipe to connect the shunt to the battery terminal. You can search the forum for my post and pictures, if you are interested.
Larry
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Old 10-04-2016, 01:33 PM   #7
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Hey Larry, what do I search for? I've never had much luck with this search engine. Any chance you can shoot me a link?
ewood29289@aol.com

Thanks, Woody
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Old 10-04-2016, 01:34 PM   #8
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Hi. Lots of information on the site bogartengineering.com as to the best placement for the shunt. Also Ralph, the designer of this TM2030 is always there for answers.


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Old 10-04-2016, 02:13 PM   #9
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Link

http://www.airforums.com/forums/f37/...cs-112618.html

Here you go.

Larry
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Old 10-04-2016, 02:44 PM   #10
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Wow

Larry, you're a bloody genius. Never thought to attach to "top" of battery. Sooooo, when removing batteries just remove shunt along with other cables. Duh! I don't like using Tri Metrics housing. Sticks out too far. Think I'll just make a cut out and toss the box. Flush mount should allow for constant read out. I owe you man........... Thanks, Woody
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Old 10-04-2016, 02:50 PM   #11
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Just finished my battery box mod and Trimetric install.

Details here.

http://www.airforums.com/forums/f449...ll-157564.html
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Old 10-04-2016, 04:45 PM   #12
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Yeah, the forum can be a great resource for simple solutions!
Larry
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Old 10-04-2016, 06:34 PM   #13
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My Trimetric story is here as part of a solar project:
http://theouterlimits.ws/projects/airstream/solar/
It works great for me.
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Old 10-04-2016, 10:05 PM   #14
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Originally Posted by amazingwoody View Post
Larry, you're a bloody genius. Never thought to attach to "top" of battery. Sooooo, when removing batteries just remove shunt along with other cables. Duh! I don't like using Tri Metrics housing. Sticks out too far. Think I'll just make a cut out and toss the box. Flush mount should allow for constant read out. I owe you man........... Thanks, Woody
I hadn't seen that before either and it is a great idea. Those with small battery compartments will love that.
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Old 10-05-2016, 01:03 AM   #15
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I didn't like the trimetric box either, and I didn't want it to be "surface mounted", so I took an aluminum plate and mounted the trimetric panel to the plate and then "back mounted" the the plate to the cabinet:
See Post 12
http://www.airforums.com/forums/f116...ty-141874.html
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Old 10-05-2016, 05:37 PM   #16
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Thanks

I just want to say how much I appreciate the feedback from all of you in regards to this project. I just about finished today and just have to do the final wiring tomorrow. If I could figure out how to post pictures I would. Until then, this is how I did it. Essentially I grabbed the inbound +/_ as it came inboard, from the battery box, under the street side seat of the dinette. Positive goes to a battery disconnect solenoid and ground goes to a bus bar. I pulled ground off the buss bar and wired it into one side of the shunt. From the other side of shunt back to bus bar. Ran signal cable behind water tank, under sink and into wardrobe up behind two floor drawers. I cut a hole in bulkhead to left of stove and below Airstream info center. I threw away TriMetric's box and did a flush mount instead of a surface mount. Tomorrow I will go out in search of a piece of aluminum and create a trim plate for a look similar To Mark's. Woody
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