The 30-second version
| Connector | Current | Typical power | Found on |
|---|---|---|---|
| J1772 | AC | 3.3–19.2 kW | Almost every non-Tesla EV, home chargers, public Level 2 |
| CCS1 | DC | 50–350 kW | Non-Tesla EVs for fast charging (J1772 + two DC pins) |
| NACS | AC + DC | up to 1 MW (car-limited) | Tesla, plus newer EVs with native NACS ports |
| CHAdeMO | DC | 50–100 kW | Older Nissan Leaf; being phased out |
If you drive a non-Tesla EV built before 2025, your car almost certainly has a J1772 inlet for home charging and a CCS1 inlet for fast charging. Tesla vehicles have a single NACS inlet that handles both.
Why NACS matters now
NACS — the North American Charging Standard, standardized as SAE J3400 — used to be Tesla-only. Most major automakers have announced native NACS ports for upcoming US models, but the timing varies by brand, model and even assembly plant. Some 2025 cars have NACS; others kept CCS1 into 2026 or later.
That is good news long term: one plug for home and fast charging. In the short term it creates a confusing mix. A 2024 Ioniq 5 and a US-built 2025 Ioniq 5 look almost identical but use different plugs, and the adapter you need depends on the year and build location.
What each plug is actually for
J1772 — home and destination charging
J1772 is the standard AC plug for non-Tesla cars. It carries single-phase AC up to about 19.2 kW, though most cars limit themselves to 7.2–11.5 kW. Every J1772 charger works with every J1772 car; the car decides how much power it accepts.
CCS1 — DC fast charging
CCS1 is a J1772 plug with two extra DC pins underneath. It is what you use at Electrify America, EVgo, ChargePoint DC stations and most non-Tesla fast chargers. CCS1 is DC-only; you cannot use it for home charging.
NACS — Tesla's do-everything plug
NACS is compact, handles both AC and DC, and is the plug on Tesla Superchargers. With a native NACS port, a car can use Tesla home chargers, destination chargers and Superchargers without an adapter. Older CCS1 cars can use Superchargers with an OEM NACS-to-CCS1 adapter.
CHAdeMO — the legacy outlier
CHAdeMO is the old Japanese DC standard. The Nissan Leaf is the main US holdout. There is no approved adapter for Tesla Superchargers, and the number of public CHAdeMO stations is shrinking.
Which adapter do you need?
| Your car | Charging at | Adapter |
|---|---|---|
| CCS1 car (most 2021–2024 EVs) | Tesla Supercharger | NACS-to-CCS1 (OEM) |
| J1772 car | Tesla Wall Connector or destination charger | NACS-to-J1772 (AC only) |
| Tesla | J1772 public or home charger | J1772-to-NACS (included with car) |
| Tesla | CCS1 fast charger | CCS1-to-NACS |
| Nissan Leaf | Tesla Supercharger | Not supported |
Two rules prevent most mistakes. First, never use a DC adapter on an AC charger or the reverse. Second, buy the adapter your manufacturer approves — a physical fit does not guarantee a software handshake at a Supercharger.
Frequently asked questions
Will all EVs switch to NACS?+
Most major automakers have committed to NACS for future US models, but the installed base of J1772 and CCS1 cars will be on the road for a decade or more. Adapters will remain relevant through at least the early 2030s.
Is CCS1 dead?+
Not yet. CCS1 is still the most common DC connector on non-Tesla cars and public chargers. New models are moving to NACS, but CCS1 stations and cars will coexist for years.
Last verified 2026-10-29. This guide is general information, not electrical advice. Have a licensed electrician perform a load calculation before installing a charger.