UPI payment module for DC fast chargers
Drivers scan a QR code on the charger, pay from any UPI app and start charging in under a minute.
THE CHALLENGE
Drivers arrive without the operator’s app
DC fast chargers serve drivers on highways, at fuel stations and in fleet depots, where a session often costs ₹300 to ₹2,000. Many of these drivers arrive without the charging operator’s app, and a charger that only takes app payments loses those sessions.
UPI sits alongside app and RFID access, so the charger keeps working with the CPO’s existing setup.
WHAT IT DOES
What it does for you and your customers
RNDSquare designs the payment hardware around your DC charger. For chargers with a touchscreen, we add UPI to your existing HMI. For chargers without one, or for retrofits, we design a separate payment module with a dynamic QR display, 4G and a speaker, connected to your charge controller over OCPP. We also build the application support: prepaid sessions by amount or energy, the payment backend, an operator dashboard, and integration with the charging management system your CPO customers already use.
Accept UPI from any app
The driver picks an amount or energy on screen and sees the price before paying.
Sound confirmation
The charger announces the payment and charging starts.
Instant refund on service failure
If a session fails to start, the driver is refunded automatically, and unused balance is credited back at the end.
Hosts receive payments within 24 hours
Charger owners get each day’s collections the next day, with reports per charger and connector.
Full application development
Tariffs, session and energy tracking, and operator reports are built for you.
AT A GLANCE
UPI for DC chargers in brief
- Chargers with a touchscreen
- UPI added to your existing HMI
- Chargers without a screen, and retrofits
- A separate payment module with dynamic QR display, 4G and speaker
- Charger link
- OCPP to your charge controller
- Sessions
- Prepaid by amount or energy, with unused balance credited back
- Works with
- App and RFID access, and the CPO’s charging management system
- Reports
- Per charger and per connector
UPI APPLICATIONS
Other machines we add UPI to
- UPI payment module for AC EV chargers
- UPI payments for 2W, 3W and e-rickshaw charging points
- UPI payment for parking boom barriers
- UPI controller for water ATMs
- UPI controller for milk ATMs and liquid dispensers
- UPI payment system for vending machines
- UPI payment for laundromat machines
- UPI payment for smart lockers
- UPI payment for self-service kiosks
FAQ
Questions buyers ask us
How do you add UPI to a DC fast charger?
For chargers with a touchscreen, we add UPI to the existing HMI. For chargers without one, or for retrofits, we fit a separate payment module with a dynamic QR display, 4G and a speaker, connected to the charge controller over OCPP.
Does UPI replace app and RFID charging?
UPI sits alongside app and RFID access. The charger keeps working with the CPO’s existing setup, and drivers without the operator’s app can still pay and charge.
What happens if the charging session fails after the customer pays?
If a session fails to start, the driver is refunded automatically. When a prepaid session ends early, the unused balance is credited back.
When do owners receive the money?
Charger owners receive payments within 24 hours. Each day's collections arrive the next day, with a settlement report.
Building a DC charger that should accept UPI?
Book a technical review. We will look at your HMI, charge controller and OCPP setup, and plan the payment flow with you.