Most vehicles use pay-as-you-go supercharging unless labeled with free supercharging. Tesla Superchargers bill our account automatically. You will receive an invoice at the end of the rental to reimburse these costs.4) How do I lock and unlock the Tesla?Tap the key card on the pillar next to the driver’s window. The Tesla does not lock automatically with the key card; remember to tap the pillar when leaving.5) What battery level is required for return?Return the vehicle with the same charge level it had at pick-up to avoid penalties.