How to install a Renogy DCC50S 50A DC-DC On-Board Battery Charger with MPPT

Hey guys, so I've been meaning to figure out how to properly have my alternator charge my house batteries. The RV came with a mechanical solenoid isolator but I believe it was broken. I then bought a wirthco battery doctor, but then found out that is not really designed for deep cycle batteries. I randomly stumbled upon this and I'm glad I did. It allows me to charge my batteries with proper multi-stage charging by both my alternator AND solar panels. So far I love it and can highly recommend. Below are the supplies I used to wire this in:

Renogy DC-DC Battery Charger with MPPT: https://amzn.to/3lkLr96
(they sell out quick but are back in stock quickly as well)

4 Gauge 25 feet red wire: https://amzn.to/2YE7VIy
The conduit shielding: https://amzn.to/3hCbFSg
4 Gauge black wire: https://amzn.to/32wdoC7
Wire stripper: https://amzn.to/2YFbwpA
Terminal Lug pack: https://amzn.to/3b1exFQ
Hammer crimp: https://amzn.to/32zW8fE

Marine style terminal kit: https://amzn.to/3hx1DSz
Marine style terminal fuse mounts
Single Fuse: https://amzn.to/3hxp5id
Double Fuse: https://amzn.to/3lu3Hx5
60a fuse: https://amzn.to/3aY0l0l
80a fuse: https://amzn.to/3llO8XU (get 75a instead if they have it)

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