Why is my car only charging 61kW at this low percent? I thought it was supposed to reach higher wattage. (2022 ID.4 pro s rwd)

Why is my car only charging 61kW at this low percent? I thought it was supposed to reach higher wattage. (2022 ID.4 pro s rwd)

https://reddit.com/r/electricvehicles/comments/xct7p1/why_is_my_car_only_charging_61kw_at_this_low/
The0nlyLegend
https://www.reddit.com/gallery/xct7p1


Why is my car only charging 61kW at this low percent? I thought it was supposed to reach higher wattage. (2022 ID.4 pro s rwd)



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12 thoughts on “Why is my car only charging 61kW at this low percent? I thought it was supposed to reach higher wattage. (2022 ID.4 pro s rwd)

  1. Both the car and the charger have an array of temperature sensors which are used to keep things from overheating.

    Faster DC chargers need extremely large cables to prevent overheating. However, extremely large cables are really hard to use, as they are thick, heavy, and hard to bend… so instead of using larger cables, we have opted to instead liquid cool the cables.

    Liquid cooling presents another challenge, however. If the pump stops working, or if for any reason the active cooling isn’t doing its job, the cables will start getting hot. If the cables get too hot, there’s a second line of defense to prevent things from going catastrophically wrong, and that is to simply slow down the charging rate. Fewer amps means less heat, and less heat means less overheating.

    This is likely what is happening here. This is commonly referred to as “de-rated.” The charger works, but it is working at a lesser charging rate than it is meant to.

  2. Charge speed depends on the battery percentage when you plug in. With the ID.4, you’ll get highest speeds by plugging in below 20%. Plug in at higher percentages, and you’ll start at a slower rate.

    That said, your speeds are low for 26%. Probably the charger, move to a different one. And welcome to the insane world of EV charging.

  3. Hot warm/cold is ambient temperature?

    I’ve been using the exact same set of EA chargers for the last year for my 2021 VW ID.4, so no 3.1 firmware update unlike yours. Over the winter, never hit more than 80 kW, but since summer hit, I’ve been reliably getting 120 kW peak on my charges until 40-50% SOC, then ramping down to 60 kW near 80%.

  4. I’ve been having similar issues. I’ve used 4 or 5 different EA stations and the highest I’ve seen is 64kW. That said, the lowest I’ve started a charge is probably around 30%. I thought there might be something wrong with the car but it seems fairly common. Might try a different brand charger next time to see if I can charge more quickly.

  5. EA chargers default to 60ish kw max sometimes, it’s some kind of maintenance or cooling issue. I’ve seen the same thing a dozen times on my EV6. Go back a week later and same 150kw charger is charging at 172kw

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