2026 Hyundai IONIQ 9 Charging Test: 10-80% Results

We’ve been driving the 2026 Hyundai IONIQ 9, Hyundai’s flagship three-row EV. This SUV runs on an 800-volt architecture with a huge 110.3kWh usable battery pack. Hyundai rates it at 311 miles of EPA range and says it can go from 10 to 80% in 24 minutes. The big question, as always, is what it actually does when you pull up to a charger in real world conditions.

We took the IONIQ 9 to a 400kW DC fast charger to find out. Before our test, the IONIQ 9 said the battery was at an optimal temperature, and did not allow for preconditioning. We arrived at 5% and started a stopwatch timer the moment the display ticked to 10%, giving us a clean baseline for everything that followed.

The Test: A Curve That Climbs

What the IONIQ 9 does on a charger is unlike almost any other EV we’ve tested. Instead of hitting peak power early and spending the rest of the session in a gradual (or steep) taper, the car actually climbs its charging curve as the session progresses. It pulled 211 kW at 10% state of charge and kept rising all the way to a peak of 235 kW at the 60% mark.

The practical result of that rising curve is a set of milestone numbers that are hard to argue with. By 10 minutes in, we had 100 miles of EPA range back in the battery. By just under 21 minutes, we had 200 miles back — all before we began to see significant tapers. Once past 60%, the BMS begins stepping power back, but it still pulled in 124kW at 80%.

The Verdict

The Hyundai IONIQ 9 is the fastest charging EV we’ve tested yet. We recorded a 10 to 80% time of just 23 minutes and 19 seconds, beating Hyundai’s claim of 24 minutes.

It added 77.2 kWh of energy and 218 miles of EPA-rated range at an average of 210kW.

That combination of size, range, and charging speed is rare, and it makes the IONIQ 9 one of the most compelling road-trip EVs we’ve driven.