EV Plugs and Adapters: NACS, J1772, CCS Explained

By Gregory Wilson · Excerpt from Chapter 6 of EV Curious?

If you're coming from the gas-car world where every pump nozzle fits every car, the variety of EV plugs and adapters might seem unnecessarily complicated. The good news is that the industry has now converged on a single standard, and most of the variety you see today is just a transitional artifact that will fade over the next few years.

The modern EV charge port

Most modern EVs have a single charge port that's cleverly designed to handle both slow and fast charging. It's not actually one connector — it's a combination system that can accept different plugs depending on the type of charging. On new cars from 2024 onward, that port is increasingly NACS — the Tesla-derived standard that the rest of the industry has adopted. On most used non-Tesla EVs, you'll instead find a CCS port, which is the older system NACS is replacing. Both designs do the same thing; they just look different.

NACS, J1772, and CCS

By 2026 there's really only one standard that matters going forward: NACS. New 2025 and 2026 Fords, GMs, Hyundais, Kias, Volvos, Polestars, Rivians, Lucids, and Mercedes-Benz models ship with a NACS port from the factory (BMW and Porsche have committed to NACS but were still rolling out factory-installed ports as of early 2026). If you're shopping new, NACS is what you're getting, and life is comparatively simple.

Used EVs are a different story, because the older standards are still everywhere on cars from 2023 and earlier. Two are worth knowing about:

J1772 is the older Level 1 and Level 2 connector — the one used for slow AC charging at home and at most public Level 2 stations. It's a chunky 5-pin plug that's been the North American standard since 2009. Almost every public Level 2 charger you'll encounter today still uses J1772, and they will for years to come. If your car has a NACS port, you'll need a small J1772-to-NACS adapter to use them. If your car is a non-Tesla from before about 2024, it probably has a J1772 port already.

CCS (Combined Charging System) is the older DC fast charging standard for non-Tesla EVs. It's essentially a J1772 plug with two extra DC pins below it — the J1772 portion handles communication and slow AC, the extra pins handle high-power DC for fast charging, all through the same port. Most non-Tesla EVs sold between roughly 2018 and 2024 use a CCS port. If you're buying a used Mustang Mach-E, ID.4, EV6, Polestar 2, e-tron, Bolt EUV, or anything similar, expect a CCS port and to need an adapter for Tesla Superchargers.

Adapters that actually matter

CCS to NACS (Tesla Supercharger access)

This adapter lets your CCS-equipped car plug into Tesla's extensive fast-charging network. It's not just about having the right adapter, though: your specific vehicle model needs to be supported by Tesla's network. You can't borrow a friend's adapter and assume it'll work — the car itself must be on Tesla's approved list. And even with an approved adapter and supported vehicle, you can typically only use the newer V3 and some V2 stations. Older Superchargers may not work with non-Tesla vehicles.

Availability varies by manufacturer. Some provide the adapter for free, others require you to purchase one, and some don't support it yet. My Volvo EX90 is supported and came with the adapter; my Porsche Macan EV is supposed to be supported "soon" but isn't yet at the time of writing.

J1772 to NACS (Level 2 access for Tesla and newer NACS cars)

All Teslas come with this adapter. It lets them charge at any J1772 Level 2 station, which is most of the public Level 2 chargers in North America. There are many third-party options too, like Lectron.

NACS to J1772 (Tesla destination chargers for non-Teslas)

Some hotels and destinations have Tesla Level 2 chargers (not Superchargers). Adapters exist that let non-Tesla cars use these chargers, though you should always check with the property owner before using them.

RV / campground adapters

For the truly adventurous, there are adapters that let you charge from RV campground outlets. These typically provide 240V power through outlets like NEMA 14-50, which can give you Level 2 speeds in remote locations.

One important caveat: campgrounds are increasingly pushing back on this. Over the past year or two I've seen "No EV Charging" signs appearing at places that used to be reliable backup options. The math is fair from their side — an EV pulling 7-10 kW for hours costs them far more in electricity than an RV running a fridge and some lights, and older 14-50 pedestals often weren't wired for that kind of sustained continuous draw. Call ahead before you arrive, and don't assume that finding the outlet means you're welcome to use it.

CHAdeMO: the connector you probably won't meet

If you have an older Nissan Leaf from before about 2018, you might have a CHAdeMO port — an early DC fast charging standard primarily used by Japanese manufacturers and now mostly retired. Most modern fast charging stations no longer support it. If that's your car, plan trips with PlugShare or another app that filters specifically for CHAdeMO. For everyone else, this is mostly historical trivia.

What you actually need

If you have a Tesla: You're already using NACS and can access Tesla Superchargers natively. Use your included adapter for J1772 Level 2 chargers. Some brand-new Electrify America chargers now include NACS plugs, and more are coming.

If you have a newer non-Tesla with NACS: You can access Tesla Superchargers natively (as long as your car brand is supported by Tesla — the list is growing). For older CCS/J1772 chargers, you'll need the appropriate adapters.

If you have a CCS-equipped EV: Check if your manufacturer offers a Tesla Supercharger adapter. Use CCS for fast charging and J1772 for Level 2.

A word of caution: be careful about third-party adapters. You're dealing with a lot of electrical current and real heat issues. Stick with the brand-recommended options when possible. I go with established brands like Lectron.

Most EV owners need only one or two adapters, and the ones they need become obvious based on their driving patterns and local charging infrastructure. Don't stress about memorizing all the standards — your car's manual and the manufacturer's website will tell you exactly what plugs and adapters work with your vehicle, and the charging networks' apps show which connectors are available at each station.