[jetskier]

Since we are on the topic of solar charging a large battery array, what kind of charging efficiency are you folks seeing from your panels? Let's assume a fixed mount system and non-pivoting mounts. Summer months when the sun is overhead. I have just under 1200W of panels. Most of the time (like this time of year), I see 750-850W during mid-day. That's around 66-70%. I run my array in a series/parallel configuration. six panels total, (3 in series and paralleled to controller). It usually puts out 75-80V and 10-15A.

I'm wondering if I'm losing too much from using the tiny factory solar wires even though I'm well under 20A.

I'm contemplating adding a second controller and running heavier wire to the roof and splitting the two sides.