I plan to build a system very similar to https://www.mobile-solarpower.com/simplified-400-watt-fewer-wires-and-alternator-charging.html (awesome page!). The diagrams does not show any fuses between the solar panel and the Renogy charge controller. Yet I have seen other people put in a fuse. Therefore my questions: Do I really need a fuse there? What are the disadvantages/risks of not putting a fuse between charge controller and panels?
Thanks!
Thanks!