2025 Hyundai Ioniq 5 Charging Test | How Much Slower Is Tesla Supercharging?

Today we got hands-on with the upgraded Ioniq 5, which is the first non-Tesla EV to be produced with the NACS adapter, and they have actually given it native Tesla Supercharger gain access to. First? Yep, Hyundai beat Lucid to it by about a month and a half, but it does not matter because charging either high-voltage EV at a Supercharger is most likely going to take longer than you believe, until we see more V4 stations in the wild that is. Just how much slower? Let's deep-dive!

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00:00 Intro
00:39 The Process
01:35 Hyundai/Tesla Intricacies
04:00 Charging "Curve".
04:30 Incremental Breakdown.
05:38 400v to 800v Conversion.
08:05 Last Ideas.

Posted

April 28, 2025

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Tags:

Alex Dykes, Alex On Autos, car, Detailed Review, Driven, ELECTRIC, ev, review, Road test

Comments

6 responses to “2025 Hyundai Ioniq 5 Charging Test | How Much Slower Is Tesla Supercharging?”

@Wised1000

February 13, 2025

Excellent charging curve indeed. As would be expected when charging at 120kw. At 800V Hundai will charge at an average of about 160 KW but the curve would look less flat. On the my Mercedes, Tesla superchargers also peak (and stick) at 120kw.

Reply
@darrenorange2982

February 13, 2025

So in Tesla you are saying if it says 325kw station it is 800V capable?

Reply
1. @anthonyc8499
  
  February 13, 2025
  
  Tesla just dumps the amps to get 325kW. They need 800v cabinets to really juice the power to 400kW+
  
  Reply
@MistSoalar

February 13, 2025

Is that Patrick George photobombed at 3:47?

Reply
1. @anthonyc8499
  
  February 13, 2025
  
  Sure looked like it!
  
  Reply
@rodericksmith2278

February 13, 2025

IMHO, Hyundai was right to come out with NACS vehicles now. Yes, there will be more need for 2025 Ioniq 5 owners to use adapters in the short term; however, the critical phrase is “in the short term.” I haven’t seen anything recent from EVgo or EA about when they might start adding NACS cables, but press releases from a year or so ago mentioned the year 2025. Ionna and ChargePoint already have them, albeit in very limited numbers. I hope, and expect, that non-Tesla NACS plugs will start to roll out in increasing numbers this year. Once they become common, the NACS plug will become a benefit, since NACS is easier to use than CCS. Even if it takes two or three years for NACS to become common at non-Tesla locations, that still leaves the bulk of the car’s useful lifetime when it will be able to charge at these stations with the easier-to-use NACS, as well as at Tesla Superchargers without an adapter — and in two or three years, an increasing percentage of Tesla’s Superchargers will have the V4 hardware, which will further cement the NACS inlet as a benefit. So the long-term benefit of a native NACS port outweighs the short-term drawbacks to having one.

Oh, and if you need a business justification: Until two days and two weeks ago, I owned a Tesla Model 3. I traded it in for a 2025 Hyundai Ioniq 5, and in my mind, its having the NACS port was a plus. The NACS port on the 2025 Ioniq 5 was not a deciding factor, but it was definitely in the positive column.

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