@cm There's an earth reference in the charge connector, which should be sufficient to determine if L&N are correct or reversed. Most device design simply trusts that the sparky who wired the residence didn't cock it up. But it is possible to detect such a fault and protect the user from it. At the price of an EV, I would rather expect that feature would be there, it's not a toaster. @Habrok42 @momo @das_menschy @Wifiwits @cgudrian @LilahTovMoon