[bish79]

Your first charging session was mostly affected by the starting SOC, your battery should not have been too cold given the ambient temps. This car punishes you for plugging in at that high of a SOC. That is also why your last charging session was so relatively good, but that one was cold gating a bit. The car really wants you to plug in at 20% or less and it really punishes you by giving you a terrible curve if you don't, even if the battery is warm. I wish they would fix that.

The EV6 and Ioniq 5 were cold gating. Kyle did a good video about that when he tested the new preconditioning.

 

[bish79]

No. In the summer I would have gotten above 100 kW at the SOC of 47%. I’ve done it enough times to know.

A couple of questions:

1. What software are you on?
2. Do you mean that if you plugged in at 47% you would see 100kW right away, or that you normally see 100kW when you are at 47%, but when you initially plugged in at a lower SOC?

This post details what I have seen for variation of the charging curve based on SOC when plugging in with a warm battery, and it seems to very consistently do this. I am on 3.1 by the way. I hope its not a case where it was better on 2.1 and they broke it for 3.1. I will also watch for this on warmer weather road trips, but I was seeing it in Florida when it was 78F.

Different Charging Curves for Different Initial SOC...

I noticed on my two recent road trips a lot of variation in "the charging curve" based on starting SOC. For example, my typical reference point was what charging rate I was seeing at 50% SOC. If I got a good curve by starting at less than 20% SOC then I would see about 100kW at 50%. But if I...

www.vwidtalk.com

 

[bish79]

I would get well above 100 kW in the summer within a minute of the charging session starting at 47% SOC. There is usually no difference between reaching 47% after plugging in at 25% or plugging in at 47%. But, I live in the Southeast, so it’s hot here in the summer. 85-95F is a normal temperature half is the year. Sometimes it gets close to 100F. At below 20% SOC, the charging speed is 170-175 kW in the summer.

My ID.4 is a 2022 AWD that came with software 3.1.0 last summer, and it’s still on 3.1.0.

Interesting...

So you're sayin we need preconditioning? Dammit VW!!

 

[bish79]

I think its mainly just the first DCFC of the day that will be slow - battery seems to stay quite warm at least with outdoor ambient in the 30's. When we went to Asheville last month with temps in the 30's the first charge (35-95%) warmed the battery up to mid-high 80's and when we made our mid way charging stop (~130 miles later) the battery had only cooled to low-70's and we had full speed on the 75KWH station we stopped at.

But the technology exists, and its not even that complicated. C'mon VW!

Also if its really cold out (say 10-15F) you still won't get full speed on those next charging sessions, maybe 100-110 kW or so which is manageable, but not 135-150kW+ that you should be getting. And if its really really cold out (-10F) you might only get 70-90kW on the later charging sessions and only 15-30kW on the first one!