OregonTRX4 wrote:
I have 50 feet of 10 gauge wire on the way. So my understanding is that I can wire the panels about 40ft from panels to controller and then my controller will be 1.5 maybe 2 feet to the batteries. Should this be okay with minimal voltage loss?
You count for both pos and neg for voltage drop so if your panel is 50 ft away you need 100 ft of wire, 50 each. The voltage drop calculator should make that clear.
This one is clear that the "distance" is using the double amount (for a single SET of conductors), so there is no confusion
http://www.calculator.net/voltage-drop-calculator.html?material=copper&wiresize=2.061&voltage=12&phase=dc&noofconductor=1&distance=60&distanceunit=feet&eres=8&x=42&y=5How much is "ok" and "minimal" is situational and personal up to you. I would be ok with it in my own case. It is better than getting zero by not being able to get the panel out into the sun.
