Solar Installation - 100w flexible and 100w portable suitcase

Hello all! I thought I would give a little walkthrough on my solar panel installation. Some things may seem obvious, but bear with me because I'm writing it for people who are complete newbies (like I was at the start)! I was intimated at first because I had absolutely no electrical experience, but I learned so many new skills with this mod.

Before starting the installation, I already had a 100W Renogy solar suitcase with the voyager charge controller. That worked just fine, but I wanted something permanent on the roof for when I was overnighting in parking lots, rest stops, etc. I never felt comfortable setting up a portable panel at those places where I was trying to be a little bit more incognito.

I set my system up so that I have a permanent 100W flexible panel on the roof, and if needed (for example I am parked under shade), I can plug my portable solar suitcase into the solar port on the tongue box for extra power. When plugged in, the solar suitcase is wired in parallel, which means I increase the amps and keep the voltage the same. Here is a link for more explanation on parallel vs series: https://www.renogy.com/learn-series-and-parallel/.

I linked a document with the parts I used.

Here are the steps I took:

Installed MC4 connectors on one end of marine wiring
How to install MC4 connectors -
https://www.youtube.com/watch?v=jGksTZpEGJI

Determined where I wanted to place the flexible panel, marked the outline in pencil, cleaned the surface well with 90% alcohol, and mounted the panel using double sided VHB tape. For the VHB tape to properly bond, the temperature has to be above 50 for three days.

https://youtu.be/-YLDf3wrJzk
Removed the solar port from the tongue box and snipped off the ring terminal ends and replaced with mc4 connectors. Connected solar panels to the charge controller as described in the video.

I decided to add spade fittings to all the wires connecting to the charge controller. It gave a better more secure connection. The charge controller connects to the battery with the wires with the ring terminal ends. I put a new ring terminal end on the negative wire to the battery and spliced together a positive wire and the old positive wire with a fuse to the battery.

Secured the wires with 3M ziptie mounts (make sure you clean the surface well with alcohol before installing ziptie mounts). Note: when installing the ziptie mounts, let them sit overnight before connecting the wire with the ziptie. That gives more time for the double sided tape to fully bond.

Ran the wires under the handle and into the battery box

Mounted the charge controller on top of the battery box and reinstalled the solar plug

When I am using the portable suitcase with the flexible panel I disconnect the panel from its built in charge controller. Both pannels need to go through the charge controller mounted on the trailer

Tested out the portable solar suitcase and seemed to be working just fine!

This was an all new learning experience for me and I learned as I went by watching youtube videos. If anything is confusing I am happy to help.

I will try to give an update on how everything is working after the first time out.