Solar power/panel ideas, possible bug?

I've had a lot of issues with keeping solar panels active to charge up batteries. All too frequently I've seen batteries dip to ~500 when the solar panels are sitting around half idle, and I've seen a bug where the batteries lock at 150 energy because the nearby nodes have 150 max. The directional arrows don't seem to help force energy around the ship, but at least they stop the batteries from flowing back into the panels. I don't know why they'd ever choose to do that, panels should strive to empty themselves and full nodes should be dunking into batteries.

Sometimes things work fine and the panels work at full tilt until the batteries are fully charged. I don't know what's up with that.