EV6 Charging Quirks and Features

Forums › Transport (cars, bikes and boats) › EV6 Charging Quirks and Features

dklong

167 posts

Master Geek
+1 received by user: 32

#300756 2-Oct-2022 17:00

I've had my EV6 for about 10 weeks now and have noticed a couple of interesting quirks (and features?) that I wondered whether others had also seen?

1st quirk is setting the AC charging limit to 90% and coming out in the morning after trickle charging all night to find the car at 92/93%?? It has done this every time I've charged it to the full 90% limit. I wonder whether there is some sort of cell levelling going on after it hits 90% which is causing it to creep up? Interestingly with the DC charging set to 80% limit, that stops as soon as it hits 80%... to the extent that as soon as you start driving it usually drops to 79%.

The 2nd quirk I ran into was going down to the 300kW HyperCharger at the Bombay hills to see what charging rates I would see. I got there with about 17% charge but I 'foolishly' parked in the bay next to a Leaf that was plugged in but not charging. We plugged in and headed off to get a coffee and watched the charge rates via the Chargenet app. It was interesting that having the Leaf plugged in appeared to affect the charge available, even though there was no active session according to the app. Apart from a brief spurt at 198kW it basically flat lined at 150kW (+/- 0.3kW). Once the Leaf left and another car plugged in it dropped slightly further to around 130kW. It kept this up to over 75% charge however so still charged from 17% to 80% in 23 minutes which didn't seem too bad.

I was a little disappointed to not see the 200+ kW so I flicked Chargenet an email to see if a 'plugged in' but 'not charging' car in the other side of the charger would affect the power available. Yes was the answer. They came back with a very cool graph of my charging session, including power offered by the charger and power taken by the car. Sure enough, there was around 225kW (not 300kW) available when the Leaf was plugged in. The Leaf uses a max of 50kW so I guess one of the four 75kW power units in the HYC300 was allocated to it. When the next car plugged in this dropped to 150kW available as we were provided with two power units each. I suspect my limit of 150kW when supposedly 225kW was available, may be related to not being able to get 800V with only 3 power units available? I'll try again another day and NOT park next to another car and see if I can get the full kW then.

I'd be interested in hearing other people's experiences with these chargers too! :-)

Cheers

1 | 2 | 3

9184 posts

Uber Geek
+1 received by user: 4834

#2976437 2-Oct-2022 18:46

Suggest familirsing yourself with Bjorn Nyland's Youtube channel and watching the EV6 ones

Obraik

2167 posts

Uber Geek
+1 received by user: 1347

#2976452 2-Oct-2022 20:20

For the first "issue" where the charge percent is higher when you get into the car than what you set it to, this is often to do with the temperature when the car was charging as voltages read differently when the battery is cold vs warm.

The charging rate is pretty standard - if the charger is of the shared type then if someone else uses the same charger (only an option on the Hyperchargers) it will reduce the rate for all vehicles. 300kW is the max it will do if no other vehicles are plugged in.

Looking to buy a Tesla? Use my referral link and we both get credits

dklong

167 posts

Master Geek
+1 received by user: 32

#2979634 9-Oct-2022 13:43

Obraik:

For the first "issue" where the charge percent is higher when you get into the car than what you set it to, this is often to do with the temperature when the car was charging as voltages read differently when the battery is cold vs warm.

Good point. :-) Will be interesting to see whether this effect reduces as the night get warmer.

Scott3

4176 posts

Uber Geek
+1 received by user: 2990

Trusted

Lifetime subscriber

#2979702 9-Oct-2022 16:02

Helped somebody with a brand spanking-looking EV6 out at the mall (this one has tethered AC chargers).

Tip for basically any Type 2 car doing AC charging. If the plug is locked to the car and can't be unplugged, hit unlock on the key (even if the car is already unlocked, then pull out the charge connector).

What is going on in the background is that unlike type 1 with a switch in the button that tells the car to stop charging when somebody tries to remove the plug, a type 2 car always locks the plug to the car when charging. When you unlock the car the car will stop the charge and unlock the port. But if you unlock the car, but don't unplug the car within xx seconds, the car assumes you don't want to unplug, and will re-lock the charge port and re-commence charging.

Obraik

2167 posts

Uber Geek
+1 received by user: 1347

#2980552 11-Oct-2022 11:04

dklong:

Good point. :-) Will be interesting to see whether this effect reduces as the night get warmer.

My Model 3 does the same thing and yeah, it's more pronounced in the spring and autumn when the day and night temps can be quite different.

Looking to buy a Tesla? Use my referral link and we both get credits

dklong

167 posts

Master Geek
+1 received by user: 32

#2983280 16-Oct-2022 10:43

Update on the Bombay Hyper Charger:

Went to Bombay again yesterday. Got there and an EV6 was on one charger and an Ioniq5 on the other. Plugged in next to the Ioniq5 and started charging at 75kW. Went and got a coffee and it stayed at that. Noticed the Ioniq5 had left so I had the charger to myself but still getting 75kW (ie one of the four power units in these chargers). Stopped my charging session and then restarted it and went straight up to 230+kW. Rest of the charging session flew by! :-)

I assume the Ioniq5 was charging near full speed when I got there so had three of the four units engaged and the charger just gave me one. Then ... either the car or the charger wasn't smart enough to change this when the Ioniq5 left. Restarting the session caused them to re-synch and I then got access to full power. If so then it does mean you have to keep an eye on your session.. particularly if you start out sharing the charger! :-)

AliExpress

Shop now on AliExpress (affiliate link).

Dingbatt

6804 posts

Uber Geek
+1 received by user: 3694

Lifetime subscriber

#2983283 16-Oct-2022 11:03

Just a question to do with the Bombay Hyper Charger.
The Chargenet app has a tariff of $0.60/kWh (min $0.35/minute). Am I correct in assuming that it is basically a 60c amount and the 35c is just a deterrent to prevent a long stay (i.e. an idle fee)?

~~Is the Hyper Charger one of the ones excluded from the Genesis “Home Rate” bonus in their EV plan?~~ Edit: Disregard, I found the excluded chargers on the Genesis ‘EVerywhere’ webpage. Bombay isn’t one of them.

Sorry, don’t mean to hijack the thread, but this applies the EV6s as much as any other EV.

“We’ve arranged a society based on science and technology, in which nobody understands anything about science technology. Carl Sagan 1996

dklong

167 posts

Master Geek
+1 received by user: 32

#2983291 16-Oct-2022 12:08

Dingbatt:

Just a question to do with the Bombay Hyper Charger.
The Chargenet app has a tariff of $0.60/kWh (min $0.35/minute). Am I correct in assuming that it is basically a 60c amount and the 35c is just a deterrent to prevent a long stay (i.e. an idle fee)?

Sorry, don’t mean to hijack the thread, but this applies the EV6s as much as any other EV.

Hey @Dingbatt

Good question really. I probably should have named the Topic 'Charging Quirks and Features' as it looks like both question are relevant for other EVs as well!

I've just checked the texts I got at the end of the last couple of charging session. In all cases I left as soon as the charging session was over and I have just been charged the number of kWH delivered * $0.60. The $0.35/minute is obviously a disincentive to sit around using their charger as a parking space! :-)

Cheers

Dingbatt

6804 posts

Uber Geek
+1 received by user: 3694

Lifetime subscriber

#2983293 16-Oct-2022 12:15

dklong:

Good question really. I probably should have named the Topic 'Charging Quirks and Features' as it looks like both question are relevant for other EVs as well!

I've just checked the texts I got at the end of the last couple of charging session. In all cases I left as soon as the charging session was over and I have just been charged the number of kWH delivered * $0.60. The $0.35/minute is obviously a disincentive to sit around using their charger as a parking space! :-)

Cheers

I guess it also may come into play if people want to charge to 100% and the ‘hyper’ part of the charger becomes pointless as the car throttles the rate to protect the battery.

“We’ve arranged a society based on science and technology, in which nobody understands anything about science technology. Carl Sagan 1996

dklong

167 posts

Master Geek
+1 received by user: 32

#2983370 16-Oct-2022 15:05

Dingbatt:

I guess it also may come into play if people want to charge to 100% and the ‘hyper’ part of the charger becomes pointless as the car throttles the rate to protect the battery.

True. There are certainly a few vehicles that would be charging less than 35kW fairly soon after (or even before!) 80%. :-)

RunningMan

9184 posts

Uber Geek
+1 received by user: 4834

#2983374 16-Oct-2022 15:24

There will be LEAFs that won't even hit 35kW when charging at all, and very few vehicles above 35kW in the last last 10-15% of charge. To lessen charger queues you need people to charge quickly and get out, not hog a charger as it slowly gets the battery all the way to 100%. Granted there's numerous low capacity LEAFs that need every kWh they can in order to (just) make the next charger, but with more modern and high capacity vehicles, it's quicker to charge to about 60-70% then get to the next charger with about 5% left. Of course, having high power chargers than just 50kW is needed.

HP

Shop now for HP laptops and other devices (affiliate link).

Scott3

4176 posts

Uber Geek
+1 received by user: 2990

Trusted

Lifetime subscriber

#2983512 16-Oct-2022 20:21

dklong:

Update on the Bombay Hyper Charger:

Went to Bombay again yesterday. Got there and an EV6 was on one charger and an Ioniq5 on the other. Plugged in next to the Ioniq5 and started charging at 75kW. Went and got a coffee and it stayed at that. Noticed the Ioniq5 had left so I had the charger to myself but still getting 75kW (ie one of the four power units in these chargers). Stopped my charging session and then restarted it and went straight up to 230+kW. Rest of the charging session flew by! :-)

I assume the Ioniq5 was charging near full speed when I got there so had three of the four units engaged and the charger just gave me one. Then ... either the car or the charger wasn't smart enough to change this when the Ioniq5 left. Restarting the session caused them to re-synch and I then got access to full power. If so then it does mean you have to keep an eye on your session.. particularly if you start out sharing the charger! :-)

That charger type advertises "Smart, dynamic allocation of power modules and
distribution of charging power to charging points", so I would have expected that capacity to be allocated to your car when the Ioniq 5 left without requiring a session restart.

https://www.hypercharger.it/wp-content/uploads/2021/10/HYC300_PRODUCT-BRIEF_V2-1_EN.pdf

Perhaps send charge net an email. From other forums, they are quite responsive to these kind of questions (and have heaps of data logged, so can see graphs of your charge sessions in their system).

Scott3

4176 posts

Uber Geek
+1 received by user: 2990

Trusted

Lifetime subscriber

#2983517 16-Oct-2022 21:05

dklong:

Hey @Dingbatt

Good question really. I probably should have named the Topic 'Charging Quirks and Features' as it looks like both question are relevant for other EVs as well!

I've just checked the texts I got at the end of the last couple of charging session. In all cases I left as soon as the charging session was over and I have just been charged the number of kWH delivered * $0.60. The $0.35/minute is obviously a disincentive to sit around using their charger as a parking space! :-)

Cheers

Charge net only charges idle fees at the Grey Lynn (Giltrap Audi) EV rapid charger.

I think the 60c/kWh (min 35c/min) is a fairly good fee structure.

For comparison the 50kW Charge net owned units are 25c/kWh + 25c/min, and the 25kW units are 25c/kWh + 12.5c/min.

Scaling the fee structure of the other chargers to a 300kW charger would give 25c/KWh+ $1.50/min. Obviously, this isn't workable. Would make a charge on a slower-charging EV cripplingly expensive, and would give a financial reason for owners of faster-charging EV's to get upset if they get restricted output (such as when another cord is in use).

60c/kWh means for those with faster-charging EV's, the cost is in the same ballpark as using a 50kwh (25c + 25c) charger, with the very welcome bonus that the hyper charger will get the job done much faster.

The 35c/min charge kicks in if an EV is charging at less than 35kW. My take is it ensures that charge net gets a reasonable return from somebody who is charging at a low speed (and hence making a charge cord, parking pay, and 75kW module unavailable for charge net's other customers).

Module sizes in the hypercharger are 75kW, so even if somebody is charging at 8kW, the full 75kW module is unavailable to the remaining cords on the charger. Many hyper charger locations (like bombay), while capable of charging 6x cars at a time, are only configured with 4x parking bays.

From a user perspective, it encourages drivers of slower-charging EV's, to instead seek out 50kW & 25kW charge net units. And for faster charging EV's discourages staying on the charger for a 100% charge (unless it is really needed).

The main slower-charging culprits are:

Leaf's, particularly low health 24/30kWh cars (high internal resistance. my 9 bar 24kWh leaf would be below 35kW, by 50% charge, and keep dropping speed as state of charge gets higher. approaching 90% it is something), and hot battery 40/62kWh cars (will slow the charge heaps if the battery is getting hot to manage heat in the battery "Rapidgate" - only really will apply to third and subsequent fast charges on the same day)
Outlander PHEV. Max DC charge rate of 22kW (last generation), and rate will drop as state of charge increases.

Doesn't really impact the LR EV6, unless one is charging above 90%.

The curve is for around a 30deg C battery temp.

https://support.fastned.nl/hc/en-gb/articles/4408899202193-Kia

dklong

167 posts

Master Geek
+1 received by user: 32

#2984364 19-Oct-2022 07:29

Scott3:

Doesn't really impact the LR EV6, unless one is charging above 90%.

What did impress me was that the EV6 was actually still charging at around 120+kW even as it approached the 80%... as per the FastNed graph you posted.

So it is not just theoretical and certainly not at 30 degrees ambient! :-)

That ability to sustain relatively high rates of charge throughout the session certainly makes a difference, even on slightly less powerful chargers. I drove to Mt Maunganui from Akld last weekend and topped back to 80% at a 175kW charger at the Mount in 15 minutes. Barely time to stretch my legs. :-)

Shindig

1621 posts

Uber Geek
+1 received by user: 362

Trusted

#2984370 19-Oct-2022 08:09

As a side observation, it reads like you're having some enjoyable time figuring out ownership of an EV6? Can't wait to join you mate.

I feel a meetup coming on, like old times when I was part of the Renault Clio RS scene back in the UK! Bring on those Clio 182s, they were quick.

The little things make the biggest difference.

1 | 2 | 3