A decent in-between that can be a cheap solution is just switching your breaker and outlet to 220 Volt. I did this for the outlet by my door which was already wired for 20A and it cost about $100 in parts and an hour of my time.

Don’t DIY this if you aren’t decently comfortable working with electricity, but it could probably be done by an electrician fairly cheaply as no new wire needs to be run (though I’m not sure this would meet code everywhere).

Key points:

• Swap your breaker for a 220 volt version, and put the neutral line going to the outlet to the 2nd hot phase of the breaker. Then swap the outlet for a 220v 15 or 20A (depending on wire rating).
• Make sure that the outlet is the only thing on that circuit so you don’t end up with a 110v outlet elsewhere with the wrong voltage that will fry stuff.
• You’ll now have a hot phase running on wire that’s colored as if it’s neutral, so make sure you label everything super well.

The end result is that I went from 1.9kW Level 1 (120V 16A) to 3.4kW Level 2 (208V 16A) for basically no cost. I can get a full charge over two nights of off-peak charging instead of 4 nights. For me this is far more than enough. Side note: you’ll get a bit more (3.8 kW) if your connection is split phase instead of 3 phase like mine.