Information
Definition
Mode 4 charging uses off-board DC charging equipment to supply DC power directly to the vehicle battery. It is normally assessed alongside charging mode, AC/DC architecture, power rating, connector type and how the charger shares or delivers power.
Why it matters
It is the charging mode behind rapid and ultra-rapid public charging infrastructure and requires DC-specific safety and communication systems. For UK users, it affects charging speed, charger selection, vehicle compatibility and the way power is shared across outlets or vehicles.
References
Standards and regulations
EN 61851
EN 61851 is the UK-relevant BS EN IEC standard series for conductive EV charging systems, covering EVSE requirements, charging modes, control functions and safety principles for AC and DC charging. In UK terminology it is often referenced through BS EN IEC adoption and manufacturer compliance declarations.
EN 62196
EN 62196 is the UK-relevant BS EN IEC standard series for EV plugs, socket-outlets, vehicle connectors and vehicle inlets. It underpins terminology around Type 2, CCS and other conductive charging connector formats used in UK charger specifications.