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Fast Charging 101: A Beginner’s Guide to Understanding EV Fast Charging


Jake Sundstrom - Edmunds Editor
Jake Sundstrom | Editor, Edmunds
November 16, 2023
Woman in white shirt plugs white vehicle into fast charging station

Fast charging at a public charging station is the quickest way to charge your electric car.

Article Summary:

  • Fast charging tops up electric vehicles quickly, adding up to 80 miles in 20 minutes at public stations, compared to slower home charging.

  • Three plug types exist: Tesla's NACS, the widespread CCS, and CHAdeMO, mostly for the Nissan Leaf.

  • Tesla Superchargers are common for fast charging; ChargePoint has the most stations overall but no fast chargers.

  • Non-Tesla vehicles will soon be able to use Tesla stations via the upcoming Magic Dock adapter.

  • The best charging station varies by the EV's charging speed capacity, station's location, and reliability, with Tesla's network being the most user-friendly but currently Tesla-specific.


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If you own an electric vehicle of any sort, there’s a good chance you’ve heard about “fast charging,” or “DC fast charging.” We’ve mentioned fast charging before, but let’s take a closer look and show how it can make owning an electric vehicle easier.

What Is Fast Charging?

What fast charging does is right there in the name: It is a technology that lets you charge your electric vehicle in minutes instead of hours.

To recap, there are three main “levels” of charging an EV. The first is Level 1, which is just plugging into a standard 120-volt wall socket. It's pretty slow, only adding a few miles to the car's range every hour. Level 2 (240-volt) charging is what most EV owners should have in their garage. It's much faster, adding 20 or more miles every hour to the battery's charge, and it’s great for charging overnight.

Level 3 fast charging literally amps this up, charging the battery with so much electricity that it can add 60-80 miles in just 20 minutes. The downside is that this requires specialized equipment, so fast charging is only available at public charging stations. Also, frequent fast charging can cause excessive wear and tear on the battery, shortening its life. But if you're on a road trip, or just out and about and need extra juice in a hurry, fast charging makes owning an electric vehicle much more convenient.

Are there different types of fast chargers?

All fast chargers work the same, but there are three different plugs that you need to be aware of. There’s the Tesla Charging Standard, which is now known as the North American Charging Standard (NACS). For now, it’s only found on Teslas, but other manufacturers are going to start using it in 2025. Next is the Combined Charging System (CCS), which is currently found on most other non-Tesla fast-charging electric vehicles. Finally, there’s Charge de Move, better known as CHAdeMO, and it’s found primarily on the Nissan Leaf, along with a handful of Mitsubishi plug-in hybrids.

Three Electric Vehicle (EV) chargers displayed next to each other, from L to R, NACS (Tesla), CCS, CHAdeMO

There’s a lot to cover on the different types of chargers, and we’ve got it all right here if you want to learn more.

What's the most popular fast-charging station?

Strictly speaking, the most common fast charger you’re going to find is the Tesla NACS plug thanks to Tesla’s extensive Supercharger network. It has more than 20,000 fast-charging ports throughout the country, dwarfing second-place Electrify America with its 3,000 fast-charging ports.

However, that doesn’t mean Tesla has the most charging stations. When it comes to the sheer number of charging ports of any sort, nobody has more than ChargePoint, which was one of the first electric vehicle charging station companies on the scene. The downside is that most of ChargePoint’s stations aren't fast-charging. In that category it comes up short against competitors like Electrify America. On the other hand, if you drive an EV that can’t handle fast charging, the sheer number of ChargePoint stations can be very handy.

Ultimately, if you’re looking for fast charging, check out Tesla Supercharger stations if you own a Tesla or look for Electrify America if you don’t. Even though you’ll see a lot of ChargePoint stations, be sure to check the company's app before driving to one to make sure it's equipped to offer fast charging.

Will my non-Tesla charge at a Tesla station?

On left, hand displays MagicDock charging adapter in front of a Tesla Supercharger, right side of image shows adapter and charger plugged into a black car

Not yet, but that’s changing. Tesla is introducing something called a Magic Dock that will allow CCS-type electric vehicles to charge at a Tesla Supercharger station. It’s all part of a bigger change in the industry, which is largely adopting the Tesla plug as its new standard. Technical and other issues are slowing down the rollout, and as of this writing only a handful of stations have it. That number is supposed to increase dramatically in the future, but it's not wise to bank on a Supercharger station having a Magic Dock right now. If you do find one and need to charge your non-Tesla EV at a Supercharger, you’ll still need to download the Tesla app and create an account.

Are some electric vehicle charging stations better than others?

It depends on what you mean by better. Some stations offer more charging power, others are more reliable, and some are placed in a more convenient location. It comes down to your location, the station's pricing, and the charging speed your EV can accommodate. It's best to check the charging company's app to see what each station offers and what's available.

Although there's not a clear winner when it comes to charging stations, Tesla's well-maintained Supercharger network comes close thanks to its easy charging method (you simply plug in to your Tesla and walk away), convenient locations (along many major highways and in shopping centers), and relatively fast charging speeds. The biggest downside of course is that it's exclusive to Tesla vehicles, at least for now. As the Magic Dock becomes more widespread, and in coming years when more manufacturers start using the Tesla-style plug, those Supercharger stations are going to be much more useful … and crowded.

Is it always best to use the electric car charger with the most power?

Not necessarily! Electric vehicles have a limit on how much energy they can take in at a time. For example, if you have a Ford F-150 Lightning with the extended battery, you might be tempted to plug in to a 350-kW charger. However, your Lightning can only charge at a maximum of 155 kW. Using that higher-capacity charger won't hurt your vehicle’s battery, but you could be keeping someone else who could make use of the full charging capacity from using it.

Conclusion

While fast charging isn’t quite as convenient as filling up a gas tank, there’s no question it makes owning an electric vehicle much easier. Of course, it’s best to make sure you charge your battery at home to leave with a fresh charge each day. But for those times when you need a quick boost, or if you’re planning a road trip, fast charging is exceptionally useful.

Jake Sundstrom - Edmunds Editor
Jake Sundstrom | Editor, Edmunds

Jake Sundstrom has worked in the automotive industry since 2017 and written hundreds of car related articles over the course of his career. Jake is an editor at Edmunds, where he helps produce the best used car content on the web. He has also contributed to the National Hot Rod Association and other motorsport publications. When he's not writing about cars, he's probably driving them to his next vacation; he's still working out how to get a Wrangler from Los Angeles to Maui.

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