High voltage EV connectors enabling efficiency and safety at large scale production of Electric vehicles JONHON’s high voltage electric vehicle connectors have the potential of up to 550,000 vehicles per year. Our connectors are reinforced against extreme conditions and are guaranteed to work in electric vehicles. We are constantly improving our products in response to the evolving trends in the electric vehicle market. Together with our commitment to high performances – it makes us the preferred choice for the top automotive manufacturers across the globe.