EV charging

Electric vehicle charging solutions

At Promwad, we provide a full range of hardware and software services to deploy charging infrastructure for electric vehicles.

We create solutions for smart charging systems, electric vehicles, and charging stations that share data in real-time.

Custom chargers for electric vehicles

The growing demand for electric vehicles evokes to the need to create and develop EV charging infrastructure. This infrastructure is heterogeneous and depends on many factors. 
At Promwad, we develop custom EV chargers to ensure your solutions' correct connection and charging. As many as 17 years of expertise in hardware and software development allows us to ensure the safety and reliability of the charging process of future devices.
Our team is ready to complete projects, including the simulation of charging stations, DC fast-charging stations, development, and testing of electric vehicle communication controllers, or complete onboard chargers for electric vehicles. Those can be light electric vehicles (LEVs) such as electric scooters and e-bikes or electric buses. 
EV charger Promwad

Our services


Hardware and software design services to enable our customers to create their branded EV chargers with GSM, Bluetooth, Wi-Fi, Ethernet, and advanced features for connection, payments, etc.


We build solutions to help our customer’s charging network and smart charging infrastructure, providing seamless communication between the EV and the charging stations.

Levels of charging

Level 1 charging EV
  • 120V outlet (12-16A)
  • Charging power: 1.4KW or 1.9KW
  • Charging time: 8 to 12 hours (adds 5 miles per hour of charge)*
  • Residential use
Level 2 charging EV
  • 208-240V outlet (12-80A)
  • Charging power: 2.5KW or 19.2KW
  • Charging time: 4 to 6 hours (20-60 miles per hour of charge)*
  • Residential & commercial use
Level 3 charging EV
  • 208-600V outlet (400A)
  • DC fast charger
  • Charging power: up to 240KW
  • Charging time: 20-30 minutes (60-100 miles per hour of charge)*
  • Commercial use

* Estimated. Actual time may vary.

Open Charge Point Protocol (OCPP)

We develop reliable solutions for EV charging in compliance with the Open Charge Point Protocol (OCPP). OCPP is adopted by The Open Charge Alliance (OCA) — a global consortium of public and private electric vehicle infrastructure leaders. At Promwad, we have experience in developing solutions for smart EV charging infrastructure using both OCPP 1.6 and OCPP 2.0.1 protocols.
OCPP (Open Charge Alliance)

Our case-studies in automotive

Ambarella CV25 based module for consumer cameras We've designed a compact Ambarella CV25 based module for consumer cameras in sports, drones, wearables, VR application areas

Battery Management System development We developed a software and hardware platform to protect and manage battery packs of any size designed according to automotive standards
Unit for communication and navigation on the railway

Railway navigation system design with GPS & GLONASS We offered the customer a hardware solution based on three modules (units) that are connected with cables

Jade platform for automotive infotainment systems We developed hardware & software platform for automotive display, monitoring, and diagnostics systems based on the Fujitsu Jade MB86R01

Controller for traction driveWe upgraded the controller of an electric traction device for subway carriages made more than ten years ago

Key fob for car alarm Promwad engineering team developed an enclosure design for a car alarm key fob on the available PCB
Onboard multimedia computer

Onboard multimedia computerWe have developed a sophisticated hardware and software system for multimedia, GPS navigation, travel time calculation, control of air conditioning

OBD-II vehicle data logger We have developed a portable automobile recorder for control and diagnostics of technical state ("black box" for an automobile)
Navigator for cars We have developed a car navigation device which supports GLONASS / GPS, mobile communication and data transmission

Do you need a quote for your electric vehicle charging project?

Please, drop us a line. We will contact you today or next business day. All submitted information will be kept confidential.