Portable panels wire size
Hey guys, I need some help. Would you consider giving me some advice please? I’m putting together a portable solar panel setup. The panel’s will be the following. Max Power: 140Wp Open Circui...
Forum Discussion
This calculator us useful in that
A. it counts going both ways so you don't have to wonder if you need to double the distance.
B. You can try different gauges and see what you get for voltage drop.
What it does not do is tell you what amps you will get with what voltage drop. We had a thread about all that where that got answered using watts (so of course I got confused :) )
Just fill in your own numbers instead of whatever is there now
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=5
In my case it revealed how with 24v panels and 12v battery, you need to do the panel to controller at 24 and the controller to battery at 12. With 12v panels you do both at 12
A. it counts going both ways so you don't have to wonder if you need to double the distance.
B. You can try different gauges and see what you get for voltage drop.
What it does not do is tell you what amps you will get with what voltage drop. We had a thread about all that where that got answered using watts (so of course I got confused :) )
Just fill in your own numbers instead of whatever is there now
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=5
In my case it revealed how with 24v panels and 12v battery, you need to do the panel to controller at 24 and the controller to battery at 12. With 12v panels you do both at 12
