Electric vehicle owners experience a problem in one out of every five public charging sessions, according to the survey, which draws from ongoing responses from CR's EV Charging Community project. But the rate of reported problems was certainly not uniform across all networks. Survey respondents reported problems at Tesla charging stations 4% of the time, and 5% of the time at Rivian-operated chargers. Power study last year suggested Tesla Supercharging was losing its edge over other public charging, but this study suggests otherwise. "Other issues" accounted for 25% of the reported problems, followed by payment issues (23%) and charging power (15%).