databeestje
Well-known member
When I am charging my i from either a public EVSE or the one at home, with my own cord or the provided J1772 plug I can see the voltage sagging which is monitored by the OVMS I installed into the car.
To clarify, I live in NL, so the grid voltage is ~230 Volts. When the charge is near complete I see 227 Volts and 2 Ampere, but when the charge starts I see 211 Volts and 14 Ampere. So somewhere under load I'm losing ~10 volts in the wiring before the charger sees it. Could I have a bad J1772 Inlet, or is the cable from the J1772 inlet to the onboard charger much thinner then the rest.
With basic 2,5mm squared cross section the voltage drop at 14 Amps would be about 2 Volts per 10 meter of cord. So that should still be quite close to the input voltage.
Since I see this on all the various chargers, and with different cords and plugs, the only wiring and plug left is the one in the car.
To clarify, I live in NL, so the grid voltage is ~230 Volts. When the charge is near complete I see 227 Volts and 2 Ampere, but when the charge starts I see 211 Volts and 14 Ampere. So somewhere under load I'm losing ~10 volts in the wiring before the charger sees it. Could I have a bad J1772 Inlet, or is the cable from the J1772 inlet to the onboard charger much thinner then the rest.
With basic 2,5mm squared cross section the voltage drop at 14 Amps would be about 2 Volts per 10 meter of cord. So that should still be quite close to the input voltage.
Since I see this on all the various chargers, and with different cords and plugs, the only wiring and plug left is the one in the car.