Contactless payment is a payment method that allows a customer to pay by tapping a contactless bank card or a mobile wallet on a compatible reader, using NFC (near-field communication). In EV charging, contactless payment typically enables ad-hoc charging without apps or subscriptions, improving accessibility and reducing friction at public and commercial charging sites.
What Is Contactless Payment?
Contactless payment uses short-range NFC communication between a payment credential (card/phone) and a reader. It is usually based on EMV contactless standards and supported by:
– Debit and credit cards with contactless capability
– Mobile wallets that emulate a card credential (tap-to-pay on a phone or wearable)
– Unattended payment terminals integrated into chargers or installed as stand-alone devices nearby
In EV charging, the payment event is linked to a charging session start, pricing logic, and settlement.
Why Contactless Payment Matters for EV Charging
Contactless payment is often the simplest way for occasional users to pay at a public charger. It matters because it:
– Reduces onboarding friction and “app fatigue”
– Supports tourists and roaming users without local contracts
– Increases trust through familiar retail payment flows
– Can improve conversion rates and charger utilization rate
– Supports consumer transparency and accessibility expectations
For operators, easier payments can improve charging station monetization and reduce abandoned sessions.
How Contactless Payment Works in EV Charging
A typical flow looks like:
– Driver plugs in or selects a connector (depending on site UX)
– Driver taps card/phone at the reader
– Terminal performs authorization (often pre-authorization)
– CPMS starts the charging session and applies the active tariff
– Session ends; final amount is calculated and captured/settled
Because charging cost depends on delivered energy and time, EV charging often uses pre-auth holds and then adjusts to the final amount.
Pricing Models Supported by Contactless Payment
Contactless payments can be used with multiple tariff structures:
– Pay-per-kWh (energy-based)
– Flat session fee
– Time-based charging fee
– Hybrid tariffs (kWh + time + idle fee)
Clear pricing display before session start is critical to reduce disputes and chargebacks.
Key Requirements for Reliable Contactless Charging
To deliver consistent contactless payment performance, operators typically need:
– A certified terminal with appropriate contactless kernel support for target markets
– Stable connectivity for online authorization and settlement
– Integration between payment terminal events and charger control logic (OCPP + CPMS workflows)
– Secure device management and update controls
– Clear user guidance on the charger (tap location, session start rules, support contact)
Security and Compliance Considerations
Contactless payments in unattended environments require strong security practices:
– PCI-aligned payment handling and tokenization through payment providers
– Tamper-resistant terminal hardware and monitoring
– Secure update processes and logging/audit trails
– Fraud and chargeback management workflows
These controls protect both the operator and end users.
Common Pitfalls
– Assuming contactless acceptance works universally without verifying local card scheme coverage
– Poor network signal causing failed taps and abandoned sessions
– Confusing user flow (tap before plug vs plug before tap) leading to “paid but not charging” issues
– Pre-authorization holds not explained to users, causing complaints
– Inconsistent tariffs between app/roaming/contactless channels
– Insufficient monitoring of payment failures and session drop-off patterns
Related Glossary Terms
Contactless Charging Payments
Contactless Kernel
Payment Processing
Charging Wallets
Charging Subscription Plans
Charging Roaming
Clearing House Billing
Charging Session Analytics
Charging Station Monetization