2026 Lexus RZ550e Charging Test | 10-80% Supercharger Results

We’ve been driving the 2026 Lexus RZ550e, the new performance trim for the RZ lineup. This dual-motor AWD model puts down 402 horsepower and utilizes a 77kWh battery on a 400V architecture. While its 229-mile EPA range is a bit of a compromise for the F Sport’s performance, the big question remains: how long does it take to charge?

We ventured out to a 325-kW Tesla Supercharger to test the RZ550e’s 10 to 80% performance. Thanks to the NACS port for the 2026 model year, plugging into the Supercharger network is completely seamless—no adapters required. Lexus officially quotes a peak charge rate of 150 kW and a 10 to 80% time of around 30 minutes, but we wanted to see what it actually does in the real world.

The Test: Surpassing Expectations

Before our test, we preconditioned the battery and arrived at the stall with under 10% state of charge. We saw a very strong ramp-up early in the session, blowing past the manufacturer’s claim to hit an impressive peak charge rate of 165 kilowatts by the 30% mark.

It held that 165-kW peak perfectly until 34% state of charge. Then, as with most 400V systems, the rate began to taper. At 41%, the power quickly dropped from 142 kW down to 125 kW. From there, it entered a linear, predictable taper. Ultimately, our 2026 Lexus RZ550e went from 10 to 80% in exactly 26 minutes and 54 seconds.

The Verdict

Beating both the quoted 30-minute charge time and the 150-kW peak power proves that this new architecture has more potential than what’s advertised on paper. While the range is still on the shorter side compared to rivals like the Tesla Model Y or the Cadillac Lyriq, the RZ550e’s ability to hammer out a sub-27-minute charge makes it a truly viable electric road tripper.