Porsche Cayenne Electric's 16-minute claim faces real-world test at Toronto's lone 400-kW chargerThe Cool DownMatt KathersSat, September 12, 2026 at 5:11 PM UTCAdd us on GooglePhoto Credit: iStockA Jalopnik reporter tested the new Porsche Cayenne EV's fast-charging claims to see whether it lives up to the hype Porsche advertises.Porsche claims the SUV can go from 10% to 80% charge in just 16 minutes. So Jalopnik's Chris Tsui visited the Greater Toronto Area's only public 400-kilowatt charger to test the claims.Here's what to knowAccording to Tsui, the base-model Porsche Cayenne Electric started at 13% and reached 80% after 16 minutes of charging. That is not identical to Porsche's 10%-to-80% benchmark, but it is very close.AdvertisementAdvertisementThe SUV's highest observed rate was reportedly 349 kW, rather than the full 400 kW often highlighted in marketing. The peak was hit 22 seconds into the session and stayed near 350 kW until the battery was almost half full. Jalopnik noted that Porsche's spec sheet lists the Cayenne's maximum DC fast-charging rate as 390 kW, even though some Porsche materials say it can charge at "up to 400 kW."From there, the charging curve tapered as fast-charging EVs typically do, falling to about 270 kW later in the session and settling near 200 kW as the battery approached 80%.Even so, the result puts the Cayenne near the top tier of fast-charging EVs and ahead of Porsche's own Macan Electric and Taycan in peak charging speed.Cost-wise, fast charging worked out to about $0.18 per mile, which is still cheaper than the roughly $0.28 per mile cost of gas in a Cayenne S.AdvertisementAdvertisementUnfortunately, public chargers capable of 400 kW remain relatively uncommon in North America.What can be done?For most drivers, the biggest savings will not come from finding a rare 400-kW public charger. Instead, they are more likely to come from charging at home, though basic Level 1 charging can be slow.Qmerit provides free, instant installation estimates for Level 2 home charger installations, which can make daily EV ownership much easier and help drivers take fuller advantage of lower electricity rates.Public charging still plays an important role, especially for apartment residents, long-distance drivers, and people without access to dedicated parking. Broader deployment of high-speed charging stations could make EVs more appealing to shoppers who want the flexibility of quick top-ups away from home.AdvertisementAdvertisementAs more automakers and charging providers build around higher-power systems, the convenience gap between gas refueling and EV charging could continue to narrow.Where can I learn more?A near-16-minute charging stop is impressive, but daily EV convenience depends on a lot more than one SUV plugged into one rare 400-kW charger. These articles cover other real-world factors, including charger reliability, home setup, apartment access, and battery swapping.• In Los Angeles, copper theft at EV chargers is making public charging more expensive.• China's Nio is pushing battery-swapping stations that refuel EVs in about five minutes.AdvertisementAdvertisement• At home, drivers say Level 2 charging overnight is the easiest path to cheaper miles.• Across U.S. apartments, free plugs are vanishing for drivers without dedicated parking.Those day-to-day realities matter just as much as a headline charging test. For most drivers, the real question is how easy it is to find dependable, affordable power regularly.Get TCD's free newsletters for easy tips, smart advice, and a chance to earn $5,000 toward home upgrades. To see more stories like this one, change your Google preferences here.