It's almost impossible to go wrong. I even tried to go up thru Ojai and the Los Padres National Forest and didn't have issues with charging. I would suggest making sure it says you will arrive at the next Supercharger with at LEAST 7% charge if not 12% for beginners. I have taken 6 trips up and down California including Hwy 1, 101, 5, and up 395 to Reno. There are plenty of chargers.