Anderson connectors: if too small, is that a bottleneck?

Ed, I am the OP, and I am again showing my ignorance here -- why would a 120 wat portable panel (like mine) be immune to a voltage drop? Is the drop worse for more powerful solar panels?

The more I read the posts on this forum, the more I wish I had taken some electrical engineering courses in college, rather than a bunch of soft social sciences!! ;)