MPPT controller - voltage sensing without separate wires?

Half a volt? That's huge! You're throwing out numbers beyond reality. I've found just about everybody installs cabling significantly bigger than necessary. No one wants to throw away watts.

Your manual states 0.5V drop is OK?

lorelec wrote:


The point is that you might get to absorption maybe half a volt early if you have too much drop in your cabling, and stay half a volt low if your controller is supplying a lot of current after the transition. Does that matter? Yes.