Does My Hyundai or Kia Need a Charging Adapter?

Hyundai and Kia moved to the Tesla-style plug before anyone else, so their owners hit the adapter question in reverse. On a native-NACS Ioniq 5, EV6 or EV9, it is the home charger that needs a small adapter - not the Supercharger. On the CCS cars, the opposite. Here is which one you have and what to buy.

The model-year split, from the manufacturers

• Hyundai: the 2025 IONIQ 5 is the first Hyundai with a native NACS port - Hyundai says so in its own NACS FAQ, and it was the first mass-market non-Tesla to ship one. The 2026 IONIQ 9 also has a native NACS inlet. Note the exception Hyundai spells out: IONIQ 5 N vehicles do not have the native NACS port.
• Kia: the 2025 EV6 and 2026 EV9come standard with NACS ports, per Kia's own announcement.
• Everything older - pre-2025 Ioniq 5, Ioniq 6, 2024 EV6, 2024/2025 EV9, Niro EV, and the Genesis electrics - uses a CCS port whose AC half is a plain J1772 socket.

Both makers ran complimentary adapter programs for the CCS cars so they could reach Tesla Superchargers, ordered through the owner app against your VIN. Kia is explicit that its adapter is developed and tested for Kia vehicles only - manufacturer DC adapters are not universal accessories.

At home, the answer is the opposite of what people expect

A native NACS inlet on an Ioniq 5, EV6 or EV9 handles both AC and DC. That is good news at a Tesla Wall Connector and awkward everywhere else, because the enormous installed base of home and public Level 2 chargers is J1772. So on a 2025-or-newer NACS car you add a cheap, passive J1772-to-NACS adapter and keep buying ordinary J1772 wall chargers - which is exactly what our Hyundai and Kia charger roundup recommends.

On a CCS-port Hyundai or Kia, no home adapter is needed at all: a J1772 plug goes straight into the AC half of the inlet.

The 800-volt catch nobody mentions

Here is the part that gets left out of the celebratory NACS coverage, and it is the reason this site exists. Hyundai and Kia's E-GMP cars run an 800-volt architecture. Tesla's V3 Supercharger hardware was built around roughly 400 volts. So a native-NACS Ioniq 5 plugged into a V3 Supercharger - with no adapter, exactly as advertised - can charge slower than the same car on a CCS charger through an adapter. Reporting on the 84 kWh 2025 Ioniq 5 put it at about 20 minutes for 10 to 80 percent on CCS at a 257 kW peak, against roughly 30 minuteson a V3 Supercharger. Tesla's newer V4 cabinet hardware raises the ceiling, but the stall you pull into still decides the result.

None of that touches home charging - your onboard AC charger caps you near 11 kW either way, which is the point our Ioniq and EV6 home charging page makes. It matters on a road trip, and it is a good reason to read a charge curve rather than a peak kW number.

The bottom line

Native-NACS car (2025 Ioniq 5, 2026 Ioniq 9, 2025 EV6, 2026 EV9): buy a J1772 wall charger and a J1772-to-NACS adapter. CCS car: buy a J1772 wall charger and nothing else, and claim the factory NACS DC adapter for road trips. In both cases the wall charger is the same purchase, and it is the one worth spending time on.