How durable is the electric car charging port?

As durable as any other electrical plug-in connection. Easily replaced/serviced I’d wager. It would have to last for at least the battery life, which would be 5 to 10 years. There are many examples out in the world, especially with electric lift trucks.

I suppose, like any product, there might be a dud, but we expect ours to last 5 – 10 years.

I have a Model 3 and the charge port feels robust. The small door over the port looks like it could potentially develop problems one day if gunk gets in the mechanism but I’m not too concerned.

The ‘power port’ (used to be where the cigarette lighter goes) is not only pretty tough it is also fused, so if you manage to short the thing out you won’t have a fire, you’ll just have a blown fuse.

About the same as any exterior outlet, as far as I know. Why would it be different?

Compare this to a gasoline pump. The nozzle of a gas pump is about 12 inches long; it needs to go down the neck of the gas pump and past the air trap valve, in order to prevent against splashback.

A Tesla power port is something like 4–4½ inches deep and the plugs is snug around it. Backwash and fuel leakage is not an issue.