Hardwired vs. Plug In EV Chargers: Which Is Better?
Most home Level 2 chargers can either plug into a 240 volt outlet or be wired straight to the circuit. Here's how to choose.
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Plug In Chargers
A plug in charger connects to a 240 volt outlet, usually a NEMA 14-50. You can unplug it and take it with you when you move.
The downside is the outlet. Cheap outlets can wear out and overheat under hours of charging, so a heavy duty, industrial grade outlet is worth paying for.
On a typical 50 amp circuit, a plug in charger tops out at 40 amps.
Hardwired Chargers
A hardwired charger is connected straight to the circuit, with no plug in between. There's one less part to wear out, and it holds up better outdoors.
Hardwiring also lets many chargers run faster, up to 48 amps on a 60 amp circuit. Some chargers, like the Tesla Wall Connector, only come hardwired.
How Much Faster Is Hardwired?
Going from 40 amps to 48 amps gives you about 20% more charging power. For most drivers who charge overnight, that difference won't matter much, since the car is full by morning either way.
It matters more if you drive a lot, have a truck or SUV with a big battery, or share one charger between two cars. If two EVs are in your future, see our dual EV charger installation page.
Outdoor Installs
If the charger goes on an outside wall or a driveway post, hardwired is usually the better choice. There's no exposed outlet for rain to reach.
A plug in charger outside needs a weatherproof outlet with a cover that stays closed while it's plugged in. Our garage and outdoor EV charger page covers both setups.
Not sure which one fits your garage? Call and we'll help you decide.
(704) 555-0142Which One Should You Pick?
- Pick plug in if you rent, may move soon or want to swap chargers easily.
- Pick hardwired if you want the fastest home charging or the charger will be outside.
- Pick hardwired for a Tesla Wall Connector or another charger that requires it.
Cost is usually close. Either way, the electrician runs the same kind of circuit from your panel. Our EV charger installation cost page has the details.
Getting It Installed
Both options need a dedicated 240 volt circuit and, in most cases, a permit. A licensed electrician will check that your panel has room first.
If your panel is full or older, it may need work before either type of charger goes in. Our panel upgrade page explains when that happens and what it involves.
Tell the electrician which charger you plan to buy before the job starts. That way the circuit, breaker and wire size will match it from day one. See our Level 2 charger installation page to learn how it works.