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Old 03-02-2021, 07:01 PM   #1
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Solar for my 195RB

I have bought a solar kit for my 195RB. It's 300W in 3 panels, and came with a 40A MPPT controller. I have also decided to buy a battery monitor for it. Now, I am not sure where to put the shunt for the monitor. I know where it goes in line in the system (Batt neg - shunt - load), but the little pos. wire that came with the unit is only 3ft long. My batteries are out on the tongue. Has anyone else done this? Can I install the shunt on the outside of the trailer, or does it have to be inside? My understanding is that it cannot get wet? Thanks in advance.
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Old 03-03-2021, 01:22 AM   #2
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I installed mine in a watertight electrical connection box fastened to the end of the battery box where the negative terminal is located. This placed it as close to the battery as possible without being inside the same box as the battery. I've attached a couple of pictures showing the shunt inside the box as well as with the cover on.
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Old 03-03-2021, 09:56 AM   #3
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I have my shunt sitting on top of the batteries in the battery box on the tongue. Haven't had any issues. But, now I'm wondering if that's not a good idea. I'll be watching the responses to the OP to see where others put their shunt.
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Old 03-03-2021, 10:08 AM   #4
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Quote:
Originally Posted by ChiToones View Post
I have my shunt sitting on top of the batteries in the battery box on the tongue. Haven't had any issues. But, now I'm wondering if that's not a good idea. I'll be watching the responses to the OP to see where others put their shunt.
If you have flooded lead acid batteries which is what I'm currently using then that is probably not the best place for it given the corrosive gases that come off those batteries.
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TT: 2019 ORV Timber Ridge 23DBS, Blue Ox SwayPro 15K/1500
TV: 2019 Ford F-250 XLT SuperCab LB, 6.2L, 4.30/e-locker, 4x4, 164" WB, 3216 payload
TV: 2014 RAM 1500 Big Horn CC (Traded in)
TT: 2015 Jay Flight SLX 195RB Baja Edition, Andersen No-Sway (Traded in)
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Old 03-03-2021, 10:22 AM   #5
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In the battery box is where I have my shunt. I have pictures attached. It's only been there for a year, so I don't know yet if the corrosion will make any difference. I have used ethernet (LAN) cable to extend the wires connected to the shunt to the front storage compartment. Since the current load on those wires is negligible, thin wires are okay.
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