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EV charging glossary

Industry jargon

DIN SPEC 70121

DIN SPEC 70121 defines digital communication between a DC EV charging station and an electric vehicle for control of DC charging in the Combined Charging System. It predates widespread ISO 15118 implementation and remains relevant to the CCS installed base. DIN lists Edition 2 of the specification as published. The communication covers the DC charging control exchange between the vehicle and charging equipment. Newer CCS implementations increasingly use ISO 15118 for richer functions such as Plug & Charge and bidirectional power-transfer services, but compatibility with DIN SPEC 70121 can still matter when supporting existing vehicles.

Related terms

Combined Charging System

ISO 15118

High-Level Communication
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