Porsche is preparing to launch its third all-electric model, the Cayenne Electric, which is expected to arrive in the United States in 2026. As the electric Cayenne approaches market launch, the German manufacturer has decided to showcase some of its potential in the pre-production version.

Three journalists, including State Of Charge‘s Tom Moloughney, had been recently invited by Porsche to California for a 70-mph range test of the slightly camouflaged, near-production Porsche Cayenne EVs. Tom had an opportunity to test the base version of the car, equipped with an off-road package. The other two teams, Out Of Spec’s Kyle Conner and Mack Hogan from InsideEVs, tested the cars without the off-road package.

The results are impressive and clearly indicate that the 2026 Porsche Cayenne Electric will be ready for long-distance travel.

Porsche Cayenne Electric

The all-electric Porsche Cayenne is a full-size SUV, noticeably larger than the Porsche Macan Electric, which was also tested earlier this year at a constant speed of 70 mph and 80 mph. Its battery capacity is 113 kWh (107.8 kWh usable), compared to 100 kWh in the Macan Electric and 105 kWh in the latest Porsche Taycan.

Marco Schmerbeck, Porsche’s Director of Product Line Energy Systems, Cayenne Electric, explained that not only is the battery capacity higher, but the technology is even more advanced, including the latest pouch battery cells and battery system.

Porsche has a new battery system with six battery modules (compared to 12 in the Macan Electric), which are now a structural part of the vehicle itself (there is no conventional battery box/tray). This reduces weight.

The Cayenne Electric is also the first Porsche with two battery cooling/heating plates — the bottom one known from other models, and the new top one, to enhance the thermal management system. This major upgrade should significantly improve the performance of the vehicle, specifically DC fast charging.

Porsche expects that the car will DC fast charge at up to 400 kW (perhaps even a bit more at peaks). Charging from 10 to 80% state of charge (SOC) should take just 15 minutes and 15 seconds. That’s an amazing average of over 310 kW (a level of 3C).

An interesting innovation for the model will be its 11-kW wireless charging option (but it will not be cheap).

Test Conditions

The test of the Porsche Cayenne EVs was conducted on a route designated by Porsche. It was mostly highway driving, good for a 70-mph range test, but with a lot of elevation changes, which, despite regenerative braking, negatively impact range. Other than that, the weather conditions (about 84°F/29°C and almost no wind) were perfect.

It’s worth noting that the car tested by Tom Moloughney was equipped with an optional off-road package. It can potentially reduce the driving range by 10-15 miles, according to the manufacturer’s initial estimates.

The third factor is that there were three people onboard during the test, while usually there is only the driver in State Of Charge’s 70-mph tests. This has probably a marginal impact, but at least we can cautiously assume that everything achieved during the test will be easily achievable in the production version.

There is no EPA range number for the Porsche Cayenne Electric yet. It might be somewhere around 320 miles (close to the Macan Electric).

353 Miles at 70 mph

During the test from 100% to 2% SOC, the Porsche Cayenne Electric covered 353 miles at a constant speed of 70 mph*, excluding a small portion at lower speeds.

*This time, the speed was set according to the speedometer (without GPS correction), so it was probably closer to 69 mph.

At the end of the test, the car had 2% SOC and some four miles of range remaining.

The result is better than expected, considering the elevation changes, the off-road package, and the presence of three people on board. We can guess that there is a chance for the vehicle to manage up to 370 miles in the final production version of the car on State Of Charge’s standard test route.

The 2026 Porsche Cayenne EV 70-mph range test results. (Source: State Of Charge)

The average energy efficiency during the test was 3.3 miles/kWh, according to the car’s computer. This means that the car consumed roughly 107 kWh of energy.

Tom Moloughney’s range test result was surprisingly higher than in the two other Porsche Cayenne Electric pre-production prototypes, even though they had no off-road package. Kyle Conner achieved 343 miles (4% SOC left), but he was driving at a higher speed (true 70 mph / 71 mph according to the speedometer). InsideEVs’ car ended with 351.9 miles (3% SOC left). All three EVs had the same average energy consumption of 3.3 miles/kWh.

For reference, here are some of the other Porsche range tests:

• 2025 Porsche Macan Electric: 343.2 miles @ 70 mph (1% SOC; 2 miles left)
• 2025 Porsche Macan Electric: 284.4 miles @ 80 mph (0% SOC; 1 mile left)
• 2025 Porsche Taycan RWD: 361 miles @ 70 mph (0% SOC; 2 miles left)
• 2025 Porsche Taycan 4 Cross Turismo: 302 miles @ 70 mph

Video timestamps:

02:41 The range test begins
06:36 The Cayenne EV battery
08:00 Charging the Cayenne EV
14:44 The Cayenne EV’s inductive charging option
18:52 At 75% state of charge
22:04 They stop at the turnaround point
25:07 At 50% state of charge
28:05 Thermal management system and battery modules
31:12 At 25% state of charge
32:26 Aerodynamics
35:56 The elevation changes on the route we took
36:51 Off the highway – the final drive to the hotel
41:00 Comparing Tom’s results with Kyle’s and Mack’s
44:30 Summary