But if the granny charger is 10A (2300 Watt) i would imagine it would be able to charge at "full speed" even if the car has a 3 phase charger. (11/3 = 3600 watt = 16A)
I think i will just not get one, or atleast get one that is cheaper than what he offers me.
At home i have a wall charger, and i have bought the Type-2 cable for public chargers that have no cable.
I do feel it would have been more honest, to tell me, or atleast have it as a paid option, when i bought the car.
In that case, i would certainly have noticed and asked about it, and there would have been a chance i could have gotten one for free or at a very reasonable price.