I am building a solar/battery portable system for emergency use. It is based on 4 Battle Born 12V batteries, in series pairs and parallel for 24V, 200AH total. I am using a Multiplus 24/3000/70 Inverter Charger and a 150/85tr Solar Controller (This is being upgraded to a 250/100, due to your comments. Thank you!). I will also be using a Victron 24/12/40 step down converter for 12V loads, which I expect to be few but thought I should account for, nonetheless.
I need to protect the systems with fuses or breakers, but am having a time determining the proper amp ratings, and exactly where to place them. Diagrams I have read don't agree, so I am guessing there are many ways to do this.
Can someone help, or provide a reference to information that would shed a little light on this subject? I am not totally new to electricity, but am new to solar powered systems and am not ashamed to ask for help when I need it. I'm not going to connect a wire until I know what I am doing!
Thank you in advance...
UPDATE:
I am including a diagram I did today showing the items I have (except the breaker on the Pos battery line, that one is a guess), and how I envision them to be connected. I have a feeling more fuses or breakers are required, and I am totally open to comment or suggestion on cable sizes or other needed additions or changes.
UPDATE 5/27:
Drawing updated to show upgrade to Solar charge Controller, per comments. Also added a slight upgrade in 24-12 converter capacity (40 to 70).
