The short answer
The Ioniq 5 accepts 10.9 kW on AC, which is about 45 A at 240 V — so a 48 A charger on a 60 A breaker is the correct size and the car will simply draw what it can. From the 2025 model year the Ioniq 5 has a native NACS (SAE J3400) port, which means a J1772 charger now needs an adapter.
The Ioniq 5 is the car where the NACS transition actually arrived for non-Tesla buyers, and it creates a genuine fork in the advice: a 2023 Ioniq 5 and a 2026 Ioniq 5 want different hardware in the garage.
The charging number itself is straightforward. 10.9 kW sits just below the 11.5 kW a 48 A charger delivers, so the car is the limit and a 48 A charger is simply the right size — there is no 45 A charger to buy.
The constraint: what this car accepts
Everything else on this page follows from one number. The Hyundai Ioniq 5's onboard charger accepts a maximum of 10.9 kW, which is 48 amps at 240 volts. No wall charger can exceed it, and a charger rated above it delivers no extra speed.
| Specification | Value | Source |
|---|---|---|
| Maximum AC power accepted | 10.9 kW | Hyundai USA Ioniq 5 specifications |
| Maximum AC current at 240 V | 48 A | Hyundai USA Ioniq 5 specifications |
| Connector | NACS | Hyundai USA Ioniq 5 specifications |
| EPA range (2026 Ioniq 5 RWD) | 318 mi | US DOE / EPA fueleconomy.gov |
| EPA efficiency | 30 kWh / 100 mi (114 MPGe) | US DOE / EPA fueleconomy.gov |
| EPA published 240 V charge time | 9.1 hours | US DOE / EPA fueleconomy.gov |
A second trim worth knowing about: EPA lists the 2026 Ioniq 5 AWD (19 inch wheels) at 31.7 kWh per 100 miles, 290 miles of range, and 8.2 hours at 240 V. That spread is why the trim matters as much as the model when you are sizing a circuit.
The consequence: the circuit you actually need
Take the car's 48 A ceiling and work backwards. NEC 625.42 classifies EV charging as a continuous load, and NEC 625.41 requires overcurrent protection at not less than 125% of the maximum load — so a 48 A charger needs a 60 A two-pole breaker and 6 AWG copper at the 75 degC column of NEC Table 310.16.
| Item | This car | Why |
|---|---|---|
| Charger output | 48 A | Matches the car's 48 A ceiling exactly |
| Power delivered | 10.9 kW | The lower of the charger's output and the car's limit |
| Breaker | 60 A, two-pole | NEC 625.41 — 125% of a continuous load |
| Copper conductor (conduit, 75 degC) | 6 AWG | NEC Table 310.16 |
| A bigger charger would | deliver nothing extra — this is already the car's ceiling | The lower of the two numbers always wins |
Charge times, with the arithmetic shown
EPA rates the 2026 Ioniq 5 RWD at 30 kWh per 100 miles. That single figure lets you calculate any charge time you like, and it is why we show the formula rather than asserting a number.
hours = (miles x 30 / 100) / (kW x 0.9)
At 10.9 kW, this car gains about 33 miles of range per hour
The 0.9 allows for AC-to-DC conversion losses in the onboard charger — roughly 10% of what your meter records never reaches the battery. EPA efficiency figure from the US DOE / EPA fueleconomy.gov service, 2026 Ioniq 5 RWD, queried 2026-10-05.
| Charger | Miles added per hour | Hours to add 100 miles |
|---|---|---|
| 16 A (3.8 kW) | 11 | 8h 46m |
| 24 A (5.8 kW) | 17 | 5h 45m |
| 32 A (7.7 kW) | 23 | 4h 20m |
| 40 A (9.6 kW) | 29 | 3h 28m |
| 48 A (11.5 kW) | 33 | 3h 03m |
For context, EPA's own published figure for a full charge at 240 V on this trim is 9.1 hours.
What to buy for a Hyundai Ioniq 5
Our picks for the Hyundai Ioniq 5
Both are 48 A units that reach this car's full 11.5 kW. The top pick is most households, and anyone with a tight panel; the alternative is there because a tesla household that wants a non-tesla app.
Most households, and anyone with a tight panel
Emporia Pro Level 2 EV Charger
The best-balanced 48 A charger for a typical US house: full 11.5 kW hardwired, and the only unit at this price that ships with a whole-home energy monitor so its load management is reading your actual panel rather than guessing.
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A Tesla household that wants a non-Tesla app
ChargePoint Home Flex NACS (hardwired)
A NACS-handled Home Flex: the same adjustable 16-50 A hardware with a Tesla-shaped plug, which removes the adapter from a Tesla owner's daily routine without locking them into Tesla's ecosystem.
#ad Price as of October 5, 2026. How we make money
We earn commission on qualifying purchases at no cost to you. Affiliate disclosure.
Connector and adapters
The Hyundai Ioniq 5 uses a NACS port (standardized as SAE J3400). Two consequences for home charging: a NACS-handled charger plugs straight in with no adapter, and a J1772 charger — which is most of the installed base — needs a J1772 to NACS adapter.
Our pick there is the A2Z Atom Plug, which carries UL 2252 and CSA certification and an 80 A rating — real headroom over a 48 A home charger. Full comparison on best J1772 to NACS adapters, and the connector landscape on which plug does my EV use.
A Tesla on a J1772 charger — the one to buy
A2Z EV Atom Plug J1772 to NACS Adapter
UL 2252 and CSA certified, 80 A rated. The adapter to buy if a J1772 charger is in your future.
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Which port does your Ioniq 5 have?
| Model years | AC connector | J1772 charger | Tesla charger |
|---|---|---|---|
| 2022-2024 | J1772 | Plugs straight in | Needs a NACS to J1772 adapter |
| 2025 onwards | NACS (SAE J3400) | Needs a J1772 to NACS adapter | Plugs straight in |
A practical consequence worth planning for: a 2025-or-later Ioniq 5 charging on an older J1772 home charger needs the adapter every single night. That is a reasonable argument for buying a NACS-handled charger — ChargePoint, Emporia and Wallbox all sell NACS versions — rather than a J1772 unit plus a permanent adapter.
Efficiency by trim, and what it means overnight
The Ioniq 5's efficiency varies substantially by drivetrain and wheel size, and that affects charge times more than the charger does.
| Trim | kWh / 100 mi | EPA range | EPA 240 V time | Miles per hour at 10.9 kW |
|---|---|---|---|---|
| Ioniq 5 RWD | 30.0 | 318 mi | 9.1 h | 33 |
| Ioniq 5 AWD (19in) | 31.7 | 290 mi | 8.2 h | 31 |
| Ioniq 5 AWD (20in) | 34.5 | 269 mi | 8.2 h | 28 |
| Ioniq 5 AWD XRT | 35.8 | 259 mi | 8.2 h | 27 |
| Ioniq 5 N | 43.0 | 221 mi | 8.7 h | 23 |
Every one of those rows is comfortably covered overnight by a 48 A charger. Even the Ioniq 5 N, the least efficient of the family, replaces 180+ miles in eight hours.
Known issue: home charging interruptions
Owners report occasional failed or interrupted home charging sessions on the Ioniq 5, typically presenting as the car not starting a session or stopping partway. Labeled as owner reports, not as something we have tested.
The pattern in those reports is worth knowing because the causes are usually mundane and checkable in order:
- The car's own scheduled charging setting. The most common cause by a wide margin. The Ioniq 5 has both a departure schedule and a charging schedule, and they interact.
- A GFCI breaker nuisance-tripping on a plug-in install. See do EV chargers need a GFCI breaker.
- An adapter that is not fully seated, on a NACS-port car using a J1772 charger — or the reverse.
- A firmware mismatch between car and charger, which usually resolves with both updated.
If none of those is it, the next step is the dealer rather than a charger change — and worth noting that this is a car-side report, not a charger-side one.
