The components of Jonhon's DC EV chargers are renowned for their durability. The power modules are constructed with high - grade copper conductors and reinforced insulation materials, capable of withstanding high currents and voltages over an extended period. The connectors are made from corrosion - resistant alloys and feature gold - plated contacts, ensuring stable electrical connections and minimizing the risk of oxidation. The cooling systems, whether air - cooled or liquid - cooled, are designed with robust fans or pumps and high - efficiency heat exchangers to maintain optimal operating temperatures. These durable components work together to ensure the reliable and long - term operation of Jonhon's DC EV chargers, even in demanding environments.