I learned I don't need to push the range-extend button before I start charging. In the E-cell menu, you can see the extra battery show up and the time until full extends considerably.
My fastest charge was from a Telsa charger and a borrowed "duosida" adapter in Dunsmuir.
My first stop was at an office park, both chargers were full and there was no way I could find them, it was a big place.
My next stop was at a prison, it was slow but free. Most of my charging in California was free.
I love that there are solar panels in random places just to charge cars.