These days, plenty of EVs come with solid driving range, but charging speed is still something carmakers are working hard to improve. One of the main ways to make charging faster is by using higher-voltage systems. Brands like Hyundai, Kia, and Genesis were some of the first to roll out 800-volt setups, which allow their cars to take full advantage of ultra-fast 350-kW DC chargers.
Volvo is now joining that group. Just a year after releasing its large electric SUV, the EX90, the company has upgraded it from a 400-volt system to a more advanced 800-volt one. Along with that, Volvo has introduced several other appealing updates—and here’s the good news: some of these features can even be added to the 2025 models you may already own.
It’s The Second Volvo To Get The System
Volvo first introduced its new 800-volt electrical system on the ES90 fastback crossover back in March, and now the EX90 becomes the second model to feature it. For the U.S. market, though, the EX90 will actually be the first to arrive, since Volvo hasn’t confirmed whether the ES90 will be sold here.
The company hasn’t shared all the details about the EX90’s charging improvements just yet, but it did mention that the SUV can gain up to 155 miles of range in just 10 minutes. What Volvo didn’t clarify is whether that figure is based on WLTP or EPA testing standards.
When the ES90 was unveiled, Volvo noted that the new battery setup could reach 80% charge roughly 10 minutes faster than the 400-volt version of the EX90, so that gives us a good idea of what to expect. We’ve reached out to Volvo for more specifics and will update once more information is available.
The New Computer And Safety Features Aren’t Just For The New Car
Along with the new electrical system, Volvo has also equipped the EX90 with a more advanced main computer, supplied by Nvidia. This upgraded unit is more powerful than the one in the 2025 model, and it unlocks a few extra safety features.
For example, the emergency steering system now works just as well at night as it does during the day. The EX90 can also receive updates with information about potential road hazards. And if the system senses that the driver is no longer paying attention, the SUV can safely bring itself to a stop and automatically place an emergency call.
While Volvo can’t retrofit the EX90’s electrical system, the computer is a different story. The company has confirmed that 2025 EX90 models will receive the new computer upgrade—and the best part is, it’s free.
That’s a pretty big deal, since automakers rarely make hardware upgrades to cars that are already on the road unless it’s part of a recall. Offering it at no cost makes it even more surprising. So, if you already own a 2025 EX90, you’ll still benefit from the improved computer, along with all the new safety features and performance enhancements that come with it.
Volvo has also added another neat feature to the EX90, this time borrowed from the ES90. The SUV now comes with an electrochromic panoramic sunroof. With just the push of a button, the glass can shift from clear to opaque—so you get instant shade without relying on a bulky fabric cover.
FAQ’s
Which EVs are 800 volts?
Models like the Porsche Taycan, Audi e-tron GT, Hyundai Ioniq 5, Kia EV6, Kia EV9, and Lucid Air use 800V systems. More brands, including BYD and Genesis, are moving to 800V for faster charging.
Does Tesla have 800 volt architecture?
Not yet. All current Teslas use 400V. Tesla has suggested that larger future models like the Cybertruck and Semi will adopt 800V.
How many volts are in an EV battery?
Most EV batteries range between 350V and 800V. Standard EVs are around 400V, while new high-performance or long-range EVs reach 800V.
How many volts for an electric car charger?
Home chargers run on 120V in the U.S. or 230V in most countries. Public fast chargers operate at 400V or 800V depending on the vehicle.
Why do 800V EVs charge faster?
With higher voltage, the battery can take in more power with less heat. That’s why 800V cars can charge from low to 80% in under 20 minutes on a strong DC charger.
Is BYD Seal 400V or 800V?
The Seal has both. Standard trims use 400V, while performance versions come with 800V for quicker charging.
What new EVs are coming in 2025?
Models like the Tesla Roadster, Kia EV5, Hyundai Ioniq 7, Volkswagen ID.7 Tourer, plus new EVs from BYD, BMW, Audi, and Mercedes are expected.
What is the difference between 400V and 800V EV cars?
400V cars are fine for daily use but charge slower. 800V cars support faster charging, lighter wiring, and greater efficiency.
Is the EV6 800V?
Yes. The Kia EV6 uses an 800V platform, allowing it to charge from 10% to 80% in under 20 minutes at the right charger.
Can a BYD Seal use a Tesla charger?
In Europe, yes — it works with Tesla Superchargers using CCS2. In the U.S., it requires an adapter for Tesla’s NACS plug.
Is BYD Seal the same as BYD Han?
No. The Seal is a sportier mid-size sedan, while the Han is larger and more luxurious.
Is BYD Seal a full EV?
Yes. The Seal is a pure battery-electric vehicle, not a hybrid.
Which EVs have 800V charging?
Cars like the Porsche Taycan, Audi e-tron GT, Hyundai Ioniq 5 and 6, Kia EV6 and EV9, Genesis GV60, Lucid Air, Lotus Eletre, and top trims of the BYD Seal.
Is Kia better than Hyundai?
Both are strong. Kia leans sportier with bold design, while Hyundai focuses more on comfort and clean looks. It comes down to personal taste.
Is the Kia EV5 400V or 800V?
The EV5 uses a 400V system. It still charges quickly but not as fast as the 800V EV6 or EV9.
Will Tesla use 800V?
Most likely. Tesla has said larger upcoming models will switch to 800V for better efficiency and charging.
Is Tesla Semi 800V?
Tesla hasn’t confirmed, but experts believe the Semi runs on at least 800V, maybe higher, to handle its large battery and fast charging.
Is the Kia EV9 400V or 800V?
The EV9 uses the same 800V platform as the EV6, so it supports ultra-fast charging even though it’s a big SUV.
What are the benefits of 800V EV?
The main benefits are faster charging, lighter wiring, less heat, and higher efficiency. Perfect for long-distance travel.
Why are some car manufacturers moving to 800V?
Because drivers want quicker charging and longer trips. 800V systems make this possible while improving energy use.
Is the Porsche Taycan 800V?
Yes. The Taycan was one of the first EVs to launch with 800V and set the standard for others.
