Starting a charging session at a charging station depends on the type of station, the technology it uses, and the associated platform. Here are the common ways to initiate charging:

1. Plug-and-Charge

  • Description: The vehicle and charger communicate automatically once the cable is plugged in.
  • How It Works:
    • The vehicle and charging station authenticate using the ISO 15118 protocol.
    • No manual interaction or payment is required at the time of charging.
  • Usage: Supported by modern EVs and smart chargers, such as Tesla Superchargers or vehicles with Plug-and-Charge compatibility.
  • Convenience: Simplest and most seamless method.

2. RFID Card or Key Fob

  • Description: Use a card or fob provided by the charging network to activate the session.
  • How It Works:
    • Tap the RFID card on the charger’s reader.
    • Authentication happens through the associated network account.
  • Usage: Common for networked public charging stations like ChargePoint, Electrify America, and Ionity.
  • Convenience: Requires carrying an RFID card or fob linked to your account.

3. Mobile App

  • Description: Start charging through the charging network's mobile app.
  • How It Works:
    • Open the app and locate the station via GPS or station ID.
    • Select the desired charging port.
    • Start the session from the app interface.
  • Usage: Popular for public charging networks and provides additional information like charging speed, cost, and availability.
  • Convenience: Requires a smartphone with the app installed and an active account.

4. Payment Terminal

  • Description: Pay directly at the charging station using a credit/debit card or mobile wallet.
  • How It Works:
    • Insert your card or use contactless payment.
    • Some stations may require inputting vehicle or session details.
  • Usage: Found in stations with integrated payment systems, often DC fast chargers.
  • Convenience: Suitable for one-time users without an app or network account.

5. QR Code Scanning

  • Description: Scan a QR code on the station to initiate charging.
  • How It Works:
    • Open a smartphone camera or app.
    • Scan the QR code on the charger.
    • Follow the link to a payment or account page to start charging.
  • Usage: Common for pay-per-use stations or non-networked chargers.
  • Convenience: Quick and user-friendly.

6. Vehicle's Infotainment System

  • Description: Start charging through the car’s interface if integrated with the charging network.
  • How It Works:
    • Locate a compatible charging station via the car’s navigation system.
    • Use in-car controls to start charging remotely.
  • Usage: Available in vehicles with advanced connectivity, like Tesla or premium EVs.
  • Convenience: Centralized control for EV users.

7. Call Center Assistance

  • Description: Contact the charging network's support center to activate a session.
  • How It Works:
    • Provide the station’s ID and your account details over the phone.
    • The operator remotely initiates the charging session.
  • Usage: Helpful if other methods fail or for users unfamiliar with the technology.
  • Convenience: Backup option.

8. Pre-Scheduled Charging

  • Description: Set up a charging schedule in advance.
  • How It Works:
    • Configure start and stop times in the mobile app or vehicle settings.
    • The charger begins automatically at the specified time.
  • Usage: Ideal for off-peak electricity rates or when planning ahead.
  • Convenience: Requires pre-planning but is highly efficient.

Comparison of Starting Methods

MethodEase of UseSpeed of SetupInfrastructure NeededBest For
Plug-and-ChargeVery EasyInstantEV & charger compatibilitySeamless experience
RFID Card/FobEasyInstantRFID-enabled stationsRegular network users
Mobile AppModerateRequires setupSmartphone and appTech-savvy users
Payment TerminalEasyInstantTerminal-integrated chargersOne-time or casual users
QR Code ScanningEasyQuickSmartphone and QR codeFlexible, casual use
Infotainment SystemEasyInstantAdvanced vehicle systemsConnected EVs
Call Center AssistanceModerateDelayedNetwork supportEmergencies or issues
Pre-Scheduled ChargingEasyDelayed setupSmart charger or app integrationTime-sensitive planning

The choice of method depends on convenience, the charging station's features, and the user's familiarity with the system.