I just got a 2018 Niro EX Premium plug-in. I’m planning to install a 30 amp outlet in my garage so I can plug in a charging cord like the one from Zencar. One electrician asked why I wouldn’t up the circuit to 40 or 50 amps. My thought is that the onboard charger is only rated at 3.3kW so the car won’t charge any faster at the higher amperage even if I spent the money on a more expensive charging station. Am I missing something?