Mercedes-Benz EQB vs Porsche Cayenne Electric

Side-by-Side Specs

Charging Speed

The Porsche Cayenne Electric has the higher published DC charging figure at 270 kW, which is roughly 165% higher than the Mercedes-Benz EQB at 102 kW. In practice, that figure only tells part of the story. The charging curve, battery temperature, and state of charge all affect how quickly your car actually charges.

For the published fast-charge window, the Porsche Cayenne Electric is listed at about 24 minutes, which is 11 minutes quicker than the Mercedes-Benz EQB at 35 minutes. On a road trip, that difference adds up over multiple stops.

Range and Efficiency

The Porsche Cayenne Electric has a WLTP rated range of approximately 610 km, which is roughly 74 km more than the Mercedes-Benz EQB at approximately 536 km. WLTP is a standardized lab test. Expect your actual range to be lower, varying with speed, weather, terrain, and driving style.

Efficiency matters more than battery size for daily driving costs. The Mercedes-Benz EQB consumes 170 Wh/km, compared to 208 Wh/km for the Porsche Cayenne Electric. That means the Mercedes-Benz EQB uses less energy per kilometer, which translates to lower charging costs and fewer charging stops on longer drives.

A more efficient car does not always mean more range. Battery size plays a role too. The Porsche Cayenne Electric has approximately 108 kWh of useable battery , while the Mercedes-Benz EQB has approximately 70.5 kWh.

Which One Should You Choose?

If fast charging is your priority, the Porsche Cayenne Electric has the higher published DC figure (up to 270 kW) and the shorter published charge time at approximately 24 minutes. For long road trips, published stop time matters more than the headline kW number alone.

Both cars support 11 kW AC charging, so home and workplace charging speeds will be similar.

If you mostly charge at home or at work and care more about daily driving costs, the Mercedes-Benz EQB is the more efficient choice at 170 Wh/km. Lower consumption means lower electricity bills over time.

For maximum range between charges, the Porsche Cayenne Electric has a WLTP rated range of approximately 610 km, which is roughly 74 km more. Both are capable EVs. The best choice depends on how you charge and how far you drive.