Industry jargon
Mode 2 charging
Mode 2 charging connects an EV to an AC supply through a standard socket-outlet using a cable that includes control and protective functions. IEC 61851 defines Mode 2 with a control-pilot function and protection against electric shock between the vehicle and the supply plug. In UK domestic use, Mode 2 is the basis of the portable charging lead often called a granny charger. IET guidance says single-phase charging from a BS 1363 socket usually operates at 10 A or less. Mode 2 should not be treated as permission to use any socket for long-duration charging. The socket, wiring and protective arrangements still need to be suitable for EV charging.