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EV charging glossary

Industry jargon

Mode 4 charging

Mode 4 charging uses an off-board charger to supply controlled DC power to the electric vehicle. The control-pilot function extends to equipment permanently connected to the AC supply, while the main AC-to-DC conversion takes place outside the vehicle. This is the IEC 61851 charging mode used for DC rapid and ultra-rapid charging. The vehicle communicates its allowable charging conditions and the EVSE adjusts output within those limits. CCS and CHAdeMO are examples of connector and communication systems used for Mode 4 charging. Mode 4 describes the charging arrangement rather than one particular connector.

Related terms

DC

Combined Charging System

Rapid charging
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