Hyundai Ioniq 9: Home Charging Time and Cost

A Hyundai Ioniq 9 charges at home for roughly fourteen dollars for a typical 10-to-80-percent top-up on its 110 kWh pack, overnight. The number that sets the speed is the onboard AC charger: the Ioniq 9 accepts up to about 11 kW, or 48 amps, so a bigger charger adds nothing at home. And unlike earlier Hyundais, it ships with a native NACS port, which changes which charger you buy. Here is the time, the cost and the charger, with the arithmetic shown.

The 48-amp ceiling is the car, not the charger

The Ioniq 9 uses Hyundai's 800-volt E-GMP platform, built for very fast DC charging on a trip. At home on AC it is limited by its onboard charger to roughly 11 kW (about 48 amps). That cap lives in the car; a charger rated higher cannot push more in. With a 110 kWh pack, a full 48-amp charger on a 60-amp circuit is worth the install - see our best 48-amp chargers.

How long it takes

At the full 11 kW the Ioniq 9 adds roughly 26 to 31 miles of range per hour - a big, heavy three-row SUV is less efficient than a sedan, so miles-per-hour is modest even at full power. The large pack makes a full charge an overnight job; a daily top-up is not.

Plugged in each night, the Ioniq 9 is full every morning; you only ever wait on the big fills before a road trip, and those you would do on DC anyway.

What it costs

Same formula as any EV: energy into the battery, divided by ~0.90 for losses, times your rate. For a 10-to-80-percent refill (~77 kWh into the pack):

• Energy drawn from the wall: 77 / 0.90 = ~85.6 kWh
• At the US average of about $0.16/kWh: 85.6 x $0.16 = about $13.70
• Cost per mile at ~2.6 mi/kWh: about 6.1 cents, or ~$6.10 per 100 miles

Your electricity rate decides the real figure; overnight time-of-use rates lower it further, and on a pack this size the savings add up. Run your own number below, then see off-peak charging.

The charger: native NACS, so mind the connector

The 2026 Ioniq 9 has a native NACS charge port for both AC and DC - a first for a Hyundai in the US. Two clean ways to charge it at home:

• A NACS-native Level 2 charger (such as a Tesla Wall Connector) plugs straight in.
• Any standard J1772 Level 2 charger - like the value Emporia Level 2 - works with a J1772-to-NACS adapter, which lets you pick from the far larger J1772 charger market and add smart features NACS units may lack.

Because the J1772 charger selection is bigger and cheaper, a good J1772 unit plus a UL-listed adapter is the pragmatic home setup for many Ioniq 9 owners. The NACS transition explainer covers what the switch means for your next charger.