Level 2 EV chargers run on 240V, the same class of circuit as an electric dryer or oven, and that’s the reason this question comes up so often before buying one.
Hardwired chargers
A hardwired Level 2 charger — wired directly into your panel with no plug — almost always needs a licensed electrician, both because you’re adding a new dedicated 240V circuit (and often a new double-pole breaker) and because most local electrical codes require permitted, licensed work for anything connected directly to your panel. Expect the electrician’s labor and any permit fees to be a real, separate cost on top of the charger itself — sometimes comparable to the price of the charger.
Plug-in chargers
Some Level 2 chargers, like certain configurations of the VEVOR Level 2 Portable EV Charger, are designed to plug into an existing 240V outlet (commonly a NEMA 14-50, the same style used for RV hookups or electric ranges) rather than being hardwired. If your home already has a suitable 240V outlet in the right location — say, near where you park — you may be able to skip the hardwiring step. But if you don’t have one already, running a new 240V circuit to install that outlet still requires an electrician; you’re just avoiding the hardwire termination step at the end.
What actually determines your cost
The single biggest cost factor isn’t the charger — it’s how far the new circuit has to run from your electrical panel to where you want to charge, and whether your panel has spare capacity for another 240V circuit at all. Get a quote from an electrician before buying a specific charger model, since panel capacity or wiring distance can sometimes push you toward a different amperage or installation type than you originally planned.