[Fidelis]

A couple of things makes me wonder if 7kW charging will not be possible.

The Polestar website quotes on 3.7 or 11 kW charging. The latter is three phase charging at 16 A.

The charging cable provided by Polestar is rated for 16A.

To charge at 7kW, you need a 32A supply and a 32A cable!

Most home and public chargers are single phase, so the Polestar may only be able to charge at 3.7 kW at most chargers.

I’m hoping that someone will prove me wrong!

 

[Fishouttawater]

You'll need your own cable but pretty sure single phase is possible at 7kw

 

[ProfessorCook]

You'll need your own cable but pretty sure single phase is possible at 7kw

Wouldn't you need an 80 amp circuit for that? 80*0.8*110=7.4?

 

[boakham]

Wouldn't you need an 80 amp circuit for that? 80*0.8*110=7.4?

The standard single phase supply here in the UK is 230V. 230x32 =7.4kW

 

[Fidelis]

I forgot to add - as well as a 32A supply and a 32A cable, you need a 32A on board charger.
The quoted charging speeds from Polestar are for a 16A on board charger - giving you either 3.7 kW (single phase) or 11 kW (triple phase).
Neither gives you 7kW from a single phase supply. I think we may be stuck with 3.7 kW from the common, single phase chargers, even those rated at 7kW.

 

[skwark]

If that's the case then that's a showstopper for me

 

[ProfessorCook]

If that's the case then that's a showstopper for me

Even if the 3.7kW is fine for overnight charging at home and DC fast charging is becoming readily available?

 

[boakham]

Don't worry!
Excerpt from the manual.. it can do up to 11kW on single phase:
Pure progressive performance | Polestar

 

[Fidelis]

That may work just fine for many people.
if you’re communting any distance though, it might make it a bit tight unless you have charging at home and work.

 

[ProfessorCook]

That may work just fine for many people.
if you’re communting any distance though, it might make it a bit tight unless you have charging at home and work.

I understand there are people that have a 100 mile commute each way, but even they should be able to make it work with home charging. (And my heart goes out to such people, spending more than three hours in the car each day, just for work.)

 

[skwark]

Don't worry!
Excerpt from the manual.. it can do up to 11kW on single phase:
Pure progressive performance | Polestar

Phew.... I nearly had a panic attack! 12hrs works for me and my driving patterns... not 22hrs... especially as I'm in a poor EV charger coverage area.

 

[Fidelis]

Well spotted!

I’m a bit puzzled though - it describes the charging rates as single phase, right up to 11kW - which is a triple phase charging rate (16A x 3). The only user cables I’ve ever seen are either 16 A or 32 A - never 48A.
Hopefully though we’ll get some good news confirmed that all is well when the first cars get delivered and we can all see!

 

[boakham]

Well spotted!

I’m a bit puzzled though - it describes the charging rates as single phase, right up to 11kW - which is a triple phase charging rate (16A x 3). The only user cables I’ve ever seen are either 16 A or 32 A - never 48A.
Hopefully though we’ll get some good news confirmed that all is well when the first cars get delivered and we can all see!

I think maybe 48A charging is a thing in the US but not here in Europe.. here's a US 48A charger:
48A Level 2 EVSE HCS-60 Hardwired | ClipperCreek

 

[polerad]

I think maybe 48A charging is a thing in the US but not here in Europe.. here's a US 48A charger:
48A Level 2 EVSE HCS-60 Hardwired | ClipperCreek

yes indeed! Although I think most folks here max out at 40A since installing a circuit of more than 240V x 50A requires special permits, at least in my (and some friends’) districts.

I’m pretty sure the on board charger of the P*2 can handle a wide range of input AC, 110-240V, up to 48A on single phase, etc.

Either way I’m sure for most, 7-11kW is perfectly fine for home L2 charging as that would charge the P*2 fully overnight, taking up to 10-11 hrs. As long as your home charger and cable can handle giving that I’m sure the P*2 can accept it.

 

[Fidelis]

You might be right about the on-board charger – but I’m still puzzled – if the on-board charger will accept higher inputs than 16 A, then I wonder why it won’t charge at 22 kW triple phase – the rate for a 32 A supply and charger? Instead, Polestar simply talks about 11 kW for the triple phase - the rate for a 16A supply and charger.

I tried to chat to Polestar but the connection failed so I’ve emailed them – I’ll let you know the response!

 

[skwark]

I’m sure I read somewhere it’s limited to 11kW by design and can’t remember why... something to do with a trade off between AC and DC support rings a distant bell... hopefully someone has more insight to offer!

 

[GDank]

400v * 32A = 12800 with loses that's 11kw 3 phase.

220v * 32A = 7040 which is your single phase 7kw

 

[Fidelis]

It’s more like 16A - 3.7 kW single phase, 11kW triple phase

32A - 7.4 kW single phase, 22 kW triple phase.

Tesla likes the 22 kW triple phase chargers which they fit at their destination points.

 

[GDank]

It’s more like 16A - 3.7 kW single phase, 11kW triple phase

32A - 7.4 kW single phase, 22 kW triple phase.

Not sure where you are getting your info from but it's wrong I'm sorry.

The AC chargers is limited to 32A

So as stated above the car will only charge a Max 7kW Single phase or 11KW Three Phase.

I'll find the post I've already done on this forum that explains it all.

 

[GDank]

What Is Your Home Charging Setup?

Is the garage attached? If not, consider having a subpanel installed in the garage for lots of flexibility in the future and run an extra conduit underground alongside the one you need to allow for something unexpected.

www.polestar-forum.com

Read through my posts on page 2