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Panels have adjustable tilt, and fold up and store into my pull behind trailer.

Hooked up, just waiting for a little extra money to build a couple batteries. Panels fold together and go into 2 sets and go into trailer, also adjustable poles for tilt. Have DC-DC Charger, MPPT, New 50 converter, 2000 inverter.

Why if I am trying to protect my solar panel that has around 8 amps would I put a 30 amp fuse in it that is based on the wire size. Doesn't it make more sense to size the fuses in a parallel configuration to the output of the panels ? 4 - 100 watt panels parallel. One fuse per panel ?

I have the Renogy DCC50S rated for 25 volts and 600 watts. I have 4 Rich solar panels at 100 watts a piece. I was going to use all panels in parallel but then thought maybe using two sets of panels in series then parallel them. For 24v and 200 watts. What are the advantages and disadvantages...

Is there an advantage to running 3 75ah batteries in parallel rather than one 200ah or 2 100ah ? Like temperature, overall discharge, etc.

If I run 4 panels in parallel will 1y4 be long enough to connect them all, or should I use 3-1y2's ?

Wouldn't it be much better for someone to use these connections and pliable pure copper cable instead of typical low strand non pliable 8 gauge cable and MC4 connections for panel array to mppt?

Ready to go just waiting to build a couple batteries. 400 watt panels fold into 2 sets and store in pull behind trailer. Adjustable poles, ground staked, 2,000 pure sine inverter. 50 converter, DC-DC mppt controler, new auto transfer switch.