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KRW Electric Company LLC

Hyundai and Kia Home Charging: NACS Ports, Adapters and Charging Speed

Hyundai and Kia sell some of the most popular EVs in South Florida, and their owners ask us the same few questions: which home charger fits my car's port, how fast will it actually charge, and can the car power the house in an outage? The answers changed in 2025, when both brands began moving to the NACS port that Tesla introduced. This guide sorts out the plugs, the adapters, the speeds and the backup power options, from the electrician's side.

First, look at your charge port

There are now two kinds of Hyundai and Kia EVs on Florida driveways.

  • CCS port. Earlier Hyundai and Kia EVs sold in the US use the CCS port, whose upper section is the J1772 inlet used for Level 2 charging at home. Any J1772 home charger plugs straight in.
  • NACS port. Hyundai says the 2025 IONIQ 5 was its first model with a factory NACS port (Hyundai newsroom), and Kia's 2025 EV6 announcement lists NACS adoption, with the port moved to the left rear fender on most trims (Kia 2025 EV6 announcement). These cars plug straight into a Tesla Wall Connector or a NACS version of another brand's charger.

The switch did not happen on every model at the same time, so do not assume from the model year alone. Look at the charge port, or check your owner's manual. The federal Joint Office explains that NACS and J1772 cars can each use the other's Level 2 chargers with an adapter (Joint Office connector page), and our NACS vs J1772 guide covers the choice in detail.

Which home charger fits

For a single Hyundai or Kia, match the charger's plug to the car's port and you are done. The decision gets more interesting in a mixed garage.

  • One NACS Hyundai or Kia and one Tesla. A Tesla Wall Connector charges both natively.
  • One CCS Hyundai or Kia and one Tesla. A Tesla Universal Wall Connector has a docked J1772 adapter, so neither driver handles a loose adapter (Tesla Universal Wall Connector manual).
  • Two non-Tesla EVs with different ports. Several chargers are sold in either plug, and some carry two cables. Our best home EV chargers list notes which.
  • Planning to change cars. An adapter bridges the gap, but a native plug is simpler for daily use, especially for someone in the house who does not want to think about it.

If you already own a J1772 charger and your next car has a NACS port, you do not need to replace the charger. A quality adapter rated for the charger's current does the job.

How fast will it charge at home?

Home charging is AC charging, and the speed is set by the lowest of three limits: the circuit, the charger's setting, and the car's onboard charger. Hyundai and Kia advertise very fast DC charging on their newer models, but that is public DC fast charging, which bypasses the onboard charger. At home, the onboard charger is the ceiling.

Onboard charger ratings vary by model, year and trim, and we would rather you check than guess: look in your owner's manual or the specifications for your exact vehicle. Once you know the rating, the rest is arithmetic. A charger delivering 32 A at 240 volts supplies about 7.6 kW; 40 A supplies about 9.6 kW; 48 A about 11.5 kW. If the car's onboard charger accepts less than the charger offers, the car takes what it can and the extra capacity goes unused.

That is why we size the circuit to the car and the panel together. The breaker must be at least 125 percent of the charger's continuous load under NEC 2020 section 625.41 (Mike Holt, NEC Article 625 summary), so a 40 A setting needs a 50-amp breaker and a 48 A setting needs 60 amps. If your car cannot use 48 A, a 60-amp circuit takes panel capacity for no benefit. The Department of Energy's rule of thumb of about 25 miles of range per hour on Level 2 (AFDC) is a reasonable overnight planning figure for most owners.

Outlet or hardwired?

Many Hyundai and Kia owners charge with a plug-in charger on a NEMA 14-50 outlet. That works well if the receptacle is EV-rated and the circuit is dedicated. Receptacles installed for EV charging need GFCI protection under NEC 2020 section 625.54 (Leviton code summary, 625.54), and some chargers are prone to nuisance trips on a GFCI breaker; a hardwired unit avoids that and allows higher amperage. Our hardwired vs plug-in guide explains the trade-off.

Vehicle-to-load is not home backup

Hyundai has promoted Vehicle-to-Load on the IONIQ 5 since its launch, the ability to power devices from the car (Hyundai IONIQ 5 announcement). After a hurricane, that can run a phone charger, a fan or a small appliance through a cord. It is not a way to power the house. Never connect a vehicle, or anything else, to home wiring through a homemade cord or a dryer outlet. Without a transfer or isolation device, power can flow back into the utility lines and endanger line workers restoring service.

Kia EV9 vehicle-to-home

Kia offers a true vehicle-to-home (V2H) system for eligible EV9 owners, and Florida was one of the first seven states where pre-orders opened in March 2025 (Kia EV9 V2H announcement). The system uses the Wallbox Quasar 2 bidirectional charger, and Kia says the accompanying Power Recovery Unit is required for backup power; the charger alone cannot power the home in a blackout. Kia also notes that permits and special permissions may be required and recommends a professional assessment of the home's electrical system.

The bidirectional equipment comes through Kia's program, not from KRW Electric. Our part is the electrical side: whether the panel and service can accommodate the equipment, the circuit it needs and the permit. Any bidirectional charger connected to a home has to be listed for power export, and the code's rules for interconnected and standby systems apply (NEC 625.48 summary). Our EV as backup power guide compares the automakers' programs.

Hyundai and Kia owners in condos

If you live in a condominium, Florida law says the association cannot prohibit you from installing a charger in your limited common element or exclusively designated parking space, with conditions such as separate metering, a licensed installer and a certificate of insurance naming the association (F.S. 718.113). Our condo EV charger installation page explains the process step by step.

Questions homeowners ask

Can my Hyundai or Kia use a Tesla Wall Connector?

If it has a NACS port, yes, directly. If it has a CCS port, it can use a Universal Wall Connector with its docked J1772 adapter, or a Tesla-to-J1772 adapter rated for the current.

Will a 48-amp charger make my car charge faster?

Only if your car's onboard charger accepts that much. Check your owner's manual for the rating before choosing a 60-amp circuit.

Does Hyundai's free NACS adapter help at home?

Hyundai announced free NACS DC adapters for eligible owners (Hyundai adapter announcement). As the name says, that adapter is for DC fast charging at Superchargers. For Level 2 at home, match your charger to your port or use an adapter rated for AC charging.

Do I need a permit to install a charger for my Kia or Hyundai?

Yes. A new 240-volt EV circuit needs an electrical permit from your city or county building department. KRW Electric pulls it and handles the inspection.

Next step

Whatever your car, the install starts with a look at the panel and the parking spot. Our EV charger installation page explains how KRW Electric (EC13012832) handles it across Miami-Dade, Broward and Palm Beach, and the Florida home EV charging guide covers the rest. Send us your car's model and year and a photo of your panel, and we will tell you what fits.

Reviewed by Kyle White, KRW Electric Company LLC — licensed electrical contractor EC13012832.

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