I’m installing a lithium battery in my pass through storage on a 292RL, there is a pos and a neg solar charging wires that connect directly to the lead acid battery and the black ground cable that attaches to the frame. There is also a single red wire that looks like it attaches from the bus bar in the pass through to the positive of the lead acid battery. I seems like I should be able to attach the pos of my lithium battery directly to the terminal that the lead acid battery was connected to. Run a ground cable from the lithium batt to the frame, and then run the wires from the solar charge controller to the lithium batt. My only question is does the positive cable that runs from the bus bar in the pass through to the lead acid battery go into some junction box that has other wires in it, or is it a single wire running from the bus to the lead acid battery?
Lithium battery in storage compartment 292RL
- Thread starter Miko38
- Start date
Long Islander
Well-known member
I installed two 100 ah batteries into the passenger side of pass through compartment on our Delta 292RL. They are right between the white panel and the pump. The original battery up front had two red wires on the positive terminal and one short black wire that attached to the frame. Sorry I forgot the gauge of the wires. One of the red wires (the thinner one) came from the solar controller and the other red one (thicker) was attached to the little copper busbar that is behind the black removeable cover that hides the pump. They were both direct runs without any junction boxes. I cut of the lugs off both wires. Then I pulled the wires back to where they went up into the pass through compartment. I was able to then push the two red wires up a few inches up and I easily found them with my hand by reaching behind the white panel with water valves and such. Then gently pulled them back into the storage area. I trimmed them back and crimped on new lugs so and attached them to the positive terminal on the batteries. I used four busbars to to terminate the loads and batteries which was probably overkill. I then took the old black ground wire from up front and I bolted one end to the power return busbar and the other end to an exposed piece of frame inside the pass through. Unfortunately I don't have pictures and I'm about to leave for a week. If you can wait I can take some pictures when I return.
Thank you for the reply, that confirmed what I did also.
greensinWA
New member
I have a Delta 284RK which probably has a similar set up. I would love to see photos of both of your set ups. TIA
Long Islander
Well-known member
I installed the batteries and wiring behind the black panel that is next to the removable black panel that hides the pump and other wiring. I cut a piece of 3/4" plywood to fit next to the white panel that the pump is mounted on and screwed it to the back wall. I then mounted two busbars (red and black) that I used to connect the batteries to. These technically aren't needed, if you only use 2 or 3 batteries and you wire them in parallel. I originally thought that I'd be installing at least 4 batteries (2 in the pass through and 2 under the bed). So far I've only installed the two, because the solar panel works way better than I expected. I removed this set up from our old Imagine trailer which didn't have a very big solar panel. I also mounted the Victron shunt in between on the negative (black) battery busbar and the negative "load" busbar. I tried labeling one the pictures to make it clearer. In the pics you can see the Red White wire and the thinner Red wire both running along the top of the board and connecting to black fuse panel, these wires were originally wired to the old battery up front. In the picture showing the power board, the fuse panel doesn't have any fuses installed in it yet. If I were to install an inverter or some other device needing 12V, I would connect it to the fuse panel (fusing it accordingly) and ground busbar. The Red/white wire runs over to copper bus bar that Alliance installed. The thinner red one connects to solar controller. I also reused the original black ground wire that connected the negative battery terminal to the frame. I connected it to the Negative Load Bar and bolted the other end to an exposed piece of the steel trailer frame, so the new batteries were grounded. I also made a picture frame using some wood and a sheet of plastic to protect something from damaging the batteries and wires.
Lastly, I apologize for the delay in responding, but we were on a 5 week trip through Quebec, Gaspe Peninsula, PEI and Nova Scotia. Unfortunately, our trailer is all closed up for the winter so i couldn't take better pictures. If you have any questions, just ask. The batteries work just fine.
I hope these pics help.
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