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AC charging limited to 26A(?)

21K views 101 replies 28 participants last post by  nerdimb  
#1 · (Edited)
Hi. I’ve had my P2 since last October.

In the last week or so I’ve noticed that if I put the charging current on the infotainment screen up to 32A it only charges at 20 or 21A (~4.5kW).

Weirdly if I reduce the amps on the screen down to 26A then it will actually reach 26A according to the car driver display (5.5-6kW). My Andersen Konnect (home charger) app confirms these kW figures.

It only started doing this very recently. Previously it would hit 31 or 32A (7kW+). At first I thought it might be my Andersen home charger or cable but I tried a podpoint 7kW charger while out and about today (with a different cable) and it did the same thing.

I’ve tried resetting the infotainment (with a long press of the home button). But it didn’t make any difference. DC charging seems unaffected.

Anyone got any ideas!?
 
#6 ·
Does the issue follow you to other chargers?
yeah i first noticed it at home and I experienced it at a public podpoint in a shopping centre yesterday.

the weirdest thing is not that it maxes out at 26A but if I increase the max amps on the infotainment then the actual current goes down to 21A! 🤷

I was hoping someone would tell me some secret reset sequence (other than just the long hold on the infotainment) 😉
 
#92 ·
My 22kW Zappi has been rock solid at 11kW for 9 months. For about the last 6 weeks it has been all over the place-
- sporadically stops charging, message 'installation limit!'
-charge drops to 7.4kW only
I rarely get an uninterrupted charge these days, but I presumed it was the Zappi's fault.
Hi Dave, I am in Australia and got my new Polestar on 30 November 2022. Since day one, I have not been able to charge the car with my 22kW Zappi any faster than 7.4kW.
I noticed you had the same problem over a year ago now; could you tell me please what happened to fix the problem? I trust the problem is fixed. So far Polestar think its a charger problem and Zappi think its a Polestar problem. What did you find please?
Regards, Graeme
 
#7 ·
I currently have a P2 loaner since mine is due for scheduled maintenance and it also is stuck at 26A. Usually mine would charge at 40A. Charger is Chargepoint Homeflex
 
#10 ·
I had similar issue where car set to 100% charge and car was at 78% plugged into home charger and no charge given as car saying charge complete. Also couldn’t alter charge rate from showing 6A even though never set on anything other than 32A. Was advised on here to disconnect totally from App. Did this and left car overnight. Since then had no issues whatsoever so try disconnecting from app and see if that helps
 
#11 ·
thing is my situation is with the loaner on the current software update. earlier today with my own car it was fine (my car is on April update). I can't connect the app to the loaner since they didn't give me all the keys to do so. Tried changing the max % to charge to and unplugging then replugging the car and it caps at 26/27A.
 
#12 · (Edited)
I’ve noticed that if you leave the car powered down for several hours before charging (eg if initiating via a schedule on the charger) this problem doesn’t happen.

edit: after some experimentation I’ve realised that the power actually cranks up slowly to the full current (if you set it to over 26A). It used to just go straight to the max - maybe it changed with an update but I didn’t notice before (only noticed recently because i did a few AC charges not on an overnight schedule so I was awake to look at the Amps!)
 
#14 ·
Interesting, I was blaming my (Tesla Corded Mobile Connector) charger for this issue. Hadn’t considered it could be my Polestar too. I have a variety of things that could be at fault though.

But I am seeing 26A instead of 40A pretty consistently. I can get back to 40A for a little while if I reset my charger from the breaker.
 
#15 ·
Hi. I’ve had my P2 since last October.

In the last week or so I’ve noticed that if I put the charging current on the infotainment screen up to 32A it only charges at 20 or 21A (~4.5kW).

Weirdly if I reduce the amps on the screen down to 26A then it will actually reach 26A according to the car driver display (5.5-6kW). My Andersen Konnect (home charger) app confirms these kW figures.

It only started doing this very recently. Previously it would hit 31 or 32A (7kW+). At first I thought it might be my Andersen home charger or cable but I tried a podpoint 7kW charger while out and about today (with a different cable) and it did the same thing.
I've had the same happen

I had firmware update 1.7 installed at the dealers last week (Volvo Exeter ), before that I had been running on P1,1 (P2104.1) since February which was the last and only OTA update I ever received.

Prior to the update, my AC charging was working fine at home (Podpoint tethered 7.4KW charger) and charging at the full rate of 32A*230v (approx 7.4KW)

Since 1.7 update it will only charge at 20/32A (approx 4.6KW) i.e. about 2/3rds full capacity.

When I dial down/reduce the max amps to 25A it will charge at 24A/32A at 230V (approx 5.5KW)
When I increase max amps to 26A it will charge at 25A/32A at 230V (approx 5.75KW)
When I increase max amps to 27A it drops to 18A/32A at 230V (approx 5.75KW)
When I increase max amps to 32A it drops to only achieves 20A/32A at 230V (approx 4.6KW)

Anyone else still experiencing this issue? Any known fixes or advice/feedback from Polestar CS?
 
#20 ·
Charged at 3 different 7KW chargers today (including my home one) and it achieved 30A/32A on each, so maybe an intermittent problem. The original problem was on my home charger and might be linked with scheduled charging (scheduled from my Podpoint rather than the car) and P1.7. Some more testing needed.
 
#24 ·
Newbie here. Was going to be one of the questions I wanted to ask. Received my P2 Wednesday. It’s set to 32 amps and I have only ever seen it go as high as 30. It estimates 21 miles or range per hour, and shows in my Andersen A2 Kønnect app 7.3/7.4kw. I put the amps down and every time it seemed to charge at a couple of amps below whatever was set. I had a model 3 for two years before the P2. That would show nearly 8kw at times and estimate 29/30 miles of range per hour of charge, so nothing to do with the charger or cable by the looks of it. 🤷🏻‍♂️
 
#25 ·
I'm still having this issue intermittently i.e. 26A/32A max on 7KW 1-phase 32A chargers and (as recently as yesterday) 11A/32A max on a 3phase 16A charger.

Polestar CS advice from 'technical' is to take it in to a service centre to have the charging circuit hardware checked out which seems kind of pointless considering it only started happening after a software upgrade (1.7). Anyone else still getting this issue??
 
#26 ·
I'm still having this issue intermittently i.e. 26A/32A max on 7KW 1-phase 32A chargers and (as recently as yesterday) 11A/32A max on a 3phase 16A charger.

Polestar CS advice from 'technical' is to take it in to a service centre to have the charging circuit hardware checked out which seems kind of pointless considering it only started happening after a software upgrade (1.7). Anyone else still getting this issue??
I don't remember the number for the software version, but I'm currently on the one where they took away the vehicle's image in the instrument cluster. I never got to 1.7 because the update failed but I've been having it intermittently as well. It doesn't occur as commonly as before when the issue first popped up but it's still there.
 
#27 ·
Now I'm on 1.7 I've experienced this.

So I don't use any schedules in the car.

My charger at home defaults to 00:30-04:30

When it's on timed charge I get 5kw (approx).

When i turn off timed charge during the day it charges to 7kW.

I've had the car for a year and never had this issue until I updated from Feb'21 to P1.7

I have no idea why its doing this. I'm going to run the car low this weekend so it gets a large charge.... And see if that fixes it.
 
#31 ·
When it's on timed charge I get 5kw (approx).
It first happened to me on a timed charge overnight, couldn't understand why it hadn't finished charging in the morning (also have it on the Octopus 00:30-04:30) until I looked at the overnight charge rate

However it happens on both instant charge and timed charge to me, both intermittently.


I've had the car for a year and never had this issue until I updated from Feb'21 to P1.7
Same situation for me also. Which is why I think its software/firmware and therefore a waste of time taking it to a Volvo service centres as Polestar CS is advising.
 
#29 ·
There is three charging "units" in the car, due to using the same design for using all three phases of three phase power for the 1 phase market. Seems like a communications problem where one of the chargers doesn't come online when it should. I've had it happen only once since I've had the car, but I agree it is really annoying. Hopefully they can eventually fix it.
 
#30 ·
That could be caused by the charger or by the car. Is it indeed related to the use of the timer or to the time of the day? You could test that by setting the timer and charge in the evening. Is there a power limit for charging at low rate in the night? Could that limit even be dynamic (I don't know how smart your meter / charger setup is) based on loading of the net?
 
#32 ·
That could be caused by the charger or by the car.
Its the car (or rather the software in the car) not the charger. Home charger (7KW 1P) and work charger (11KW 3P) worked 100% time for a year. Get 1.7, now got the fault

Is it indeed related to the use of the timer or to the time of the day?
It can happen on an overnight time charge, or it can happen in the day on a timed/instant charge. So no correlation

Is there a power limit for charging at low rate in the night?
No. Like I said worked 100% before 1.7
 
#33 ·
What's @whiteco3 said.

If it was the charger or my supply then why nothing for a year... Then I get P1.7 and poof problems.

I will do a times charge at a different time to test.

There is a difference between timed charge and just plug and go.

When i used timed charging as most of you know the dash goes yellow to indicate that it knows a cable is there but no active power.

So I wonder if it's the monitoring software gets hung up doesn't let a full charge in believing there is a problem.

It will not be because its not engaging one of the three transformers. Each one is 3.6kW so you'd either get 3.6, 7.2, or 10.8kW (what we call 3.6, 7, 11kW)

So getting 5kW is the car asking for less amps from the charger.
 
#35 ·
What's @whiteco3 said.

If it was the charger or my supply then why nothing for a year... Then I get P1.7 and poof problems.

I will do a times charge at a different time to test.

There is a difference between timed charge and just plug and go.

When i used timed charging as most of you know the dash goes yellow to indicate that it knows a cable is there but no active power.

So I wonder if it's the monitoring software gets hung up doesn't let a full charge in believing there is a problem.

It will not be because its not engaging one of the three transformers. Each one is 3.6kW so you'd either get 3.6, 7.2, or 10.8kW (what we call 3.6, 7, 11kW)

So getting 5kW is the car asking for less amps from the charger.
My experience is that it's been 2/3 of the available power. If I step down either inside the car or from the EVSE, the amount is still approximately 2/3 what is offered or requested. If 40 is available and all three units are working, it seems to max out at 13*3(which is not 40). If only two are working, I see 26A.