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Roadmaster Battery Charge Line Kit Installation

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How to Install the Roadmaster Battery Charge Line Kit

Today, we're going be taking a look at the Roadmaster battery charge line kit for towed vehicles part #RM-156-25. One reason you may need this kit is if you plan on using a portable braking system in your towed vehicle, because those will draw power and they need some sort of power source. That way, if that's drawing power, you won't need to worry about your batter being drained because you've got a charge wire on here to make sure that your battery stays at full power. Here's what it's going to look like once it's installed on the vehicle. We've got the charge wire running to that very center pin on our six-round connector, here, to the circuit breaker underneath the hood. Then it goes out the other side of the circuit breaker and routes towards the jump post for the battery. Underneath this fuse box, here, at the jump post, you can see that it has a ring terminal that connects it there in order to get power to the battery when this vehicle is in tow mode.

Now with the vehicle hooked up to the motorhome, even with our ring terminal disconnected from the jump start terminal there, if we test it for power, you can see we've got power coming through there even when it's not. You know it's going to have power to help charge the vehicle when it's being towed. This kit does come with some split wire loom that is the same length as the wire provided in the kit, but we weren't able to use it on this one just because of how the wiring was routed. Now, let's show you how to install this charge wire kit. In this case, we'll be working on a 2016 Chevrolet Equinox. I started out by using a fish wire to route the wire that will come down here to our six-round connector and will plug into the back of it there.

I routed it up along the inside, here, to where it comes up behind this headlight and comes out right here. Now what I'll do is remove this plastic covering that comes all the way up along here. In order to do that, it's just got some pushpin fasteners. You can use a trim panel tool if you have one. If you don't, you can also use a flat head screwdriver for this, that works just fine.

You want to get the center of it popped out there, and then the body of it should come right out. On this plastic cover, there's going to be four of these pushpin fasteners. The last one is going to be up here by the strut tower. Once you've got those pushpin fasteners out, it's got this weatherstripping, here. It just clips on to the edge of it. It's got that little hook.

A little hole in the end of it, there, and you just need to unclip it. Then you can work your way down the side. It's got a couple clips that hold it in place. Now what I'm going to do is take our 15 amp circuit breaker, and I'm going to install that right down in here. I'm going to take the two self-tapping screws that come in the kit. Now what I can do is take my wire, pull it up so I have about the right length. I'm going to give myself just a little bit extra, and I'll clip the wire, there. Then I'll strip the end of this wire back, and install it in one of the smaller blue ring terminals that comes with the kit. Then I'll crimp that down. When you crimp that down, you want to make sure that it's a nice secure connection, it's not going to come out there. Slide it on to that copper post there. Take one of the nuts that came on the circuit breaker, reinstall it. Then I'll grab 3/8 socket in order to tighten that down. With the excess wire, I'll strip another end back, here, install the other small blue ring terminal onto the end of that. That one I can install onto the silver post and install the nut. With that red wire coming off the silver post, I routed that down here, and around our coolant reservoir, towards our fuse box, here. Now I'm going to take our fuse box off, and there's just a couple pinch tabs on either side in order to pull that off. Now what I'm going to do is use this little bit larger blue ring terminal and you connect it on to the end of my wire, here. I'm going to put it to where it's on the underside of this jump post here, this positive jump post. In order to do that, I need to remove that jump post. 10mm socket, put it on the top of it there, and it will thread off of there. Now I can take this wire with about the length I need, and I can install my larger blue ring terminal. With that on there securely, I can slide that down onto the post, there, and thread it back on. Now we can reinstall our fuse box cover. We can also reinstall our plastic paneling over here on the side. Now what we need to do is we need to take our six-round connector off so that we can install our charge wire into the back of it. It'll take 5/16 socket to take our self-tapping screws back out. Then we can pull this out so we've got some room to work. The first thing I'm going to do, pull that dust cover off. I'm going to take the red charge wire and feed it through that dust cover. Now what I'll do is I'll strip the end of that off. Then this charge wire will be going into that very center location that sticks out. I'll loosen the screw for that one, slide the charge wire in there, and tighten that screw back down to make sure that charge wire is nice and secure. I'll slide the dust cover back on there. Then I can reinstall my six-round connector to the mounting locations. That's going to complete our look at the Roadmaster battery charge line kit for towed vehicles, part #RM-156-25.

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