![]() Various lengths of battery cables are available at auto parts stores and online. If the negative cable currently going to the battery is not long enough to reach the shunt, you will need to replace it. You will need to buy at least one additional length of battery cable to go from the negative terminal on the battery to the shunt. That means that the cable (or cables) currently going to the negative terminal (or terminals) on the battery with go to one side of the shunt and you will add a new cable from the other side of the shunt to the negative post on your battery. Step 2: The shunt is installed on the negative side of the battery. The radio rear speaker and the propane detector are also in this area. These holes were later sealed so any battery gases would vent through the proper vents rather than into the coach. In our case there was room just outside the battery compartment which is a vented compartment under the driver’s side dinette seat. Depending on the location of your battery (or batteries) this may be easy or difficult. Find a place near the battery to install the shunt. We found the wiring diagram for the Trimetric to be rather confusing, so we later drew our own version of it to hopefully be a bit clearer than the one with the instructions: The cable is long enough for the largest Class A, we just left the excess coiled up in a storage compartment. The shunt is necessary to get current readings. The shunt looks intimidating, but it is not hard to install. The Trimetric comes with a display unit, a shunt, and a very long cable. We got our Trimetric 2025RV from Randy at Randy is very helpful answering questions and giving advice. It was said to be easier to set up and use than monitors of similar capability. After reading up on the options, we settled on the Trimetric. The easiest way to keep track is a battery monitor that does more than measure voltage. You can use a hydrometer and check each cell for an accurate reading, but that is a pain, and impossible if you have sealed batteries. And your battery always has some load unless you have disconnected it. You can use a volt meter to do a slightly better job, but the problem is that unless the battery is sitting with no load for a period of time, the reading will not be accurate. It uses voltage levels to change the color of the lights. The idiot light panel is almost (but not quite) worthless for monitoring the condition of your house battery or batteries. But so are batteries when they fail unexpectedly! ![]() the Tri-Metric Battery Monitor is a bit more costly. ![]() If your batteries are not used to their full capacity on a regular basis, you will actually REDUCE your battery life and potential!!! batteries, such as the T-105, actually INCREASE in available capacity from new condition? As the new internal plate surfaces are eroded by use, the surface area increases and provides more storage capacity for use!!! By carefully monitoring batteries, you can take advantage of this increased capacity AND actually prolong battery life. The extended information and data capabilities, also help in monitoring and maintaining your system with maximum benefits for both, the user AND service technicians who may be servicing and troubleshooting your system.ĭid you know. And this added effort will also allow me to "adjust" programed set points as needed. This provides capacity and charging info based on YOUR specific system!! The extended information and data capabilities, also help in monitoring and maintaining your system with maximum benefits.Oh I'll still get to the batteries monthly, to take hydrometer readings and adjust water levels. The basic information displayed by the TriMetric, is much the same as any battery monitor, but much more accurate and precise due to "programming" of additional "set points". ![]() Some display battery capacity remaining, and tell your when it's low or time to "charge", based on voltage alone. ![]() Most monitors display battery voltage in some way, and I'll agree that most are are quite poor, inadequate, and often useless. Such advantage can extend the life of batteries and systems, and actually reduce costs! While the Tri-Metric IS a bit more costly, and may be a bit more more "high-tech" than other devices, it does save considerable time in monitoring, measuring, and record keeping, as it stores AND provides information helpful in maintaining a healthy battery system in your RV. I jus installed one of these last weekend, along with a new "Boondocker" and two new T-105's.oh, and I replaced my broken hydrometer too.Ī through understanding of how something works, can allow you to use systems like this to a greater advantage that's far beyond the average user. ![]()
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