Slow charging speeds

[DaddyCool]

I've tried asking King Google but no luck so testing the collective knowledge here...

How come I'm only getting 4Kw 6A at a public charge point with no other car sharing?

 

[Adopado]

I don't see how you can be charging at as high a rate as 4kW if only 6 amps ... does it say this on the car screen too?

 

[DaddyCool]

No idea (It's raining horizontally here right now), I had the same at a Mercedes sponsored Hotel charger too and put it down to the b@stards detecting it was not a Merc

 

[Andy_T_73]

On the other hand 10 hour charging time @4KW with 35% SoC seems about right. Sounds like it's getting 16A but maybe an app error so it's showing 6A.

 

[DaddyCool]

On the other hand 10 hour charging time @4KW with 35% SoC seems about right. Sounds like it's getting 16A but maybe an app error so it's showing 6A.

I've been plugged in since 8am (5hrs now) colleague with an S on the same point would be 100% by now (anecdotally as no idea how low he starts)

 

[Adopado]

Could this be to do with the 3 phase? e.g. the 6 amps is one of the phases

 

[Andy_T_73]

I've been plugged in since 8am (5hrs now) colleague with an S on the same point would be 100% by now (anecdotally as no idea how low he starts)

Model S can charge on type 2 at 16KW, Model 3 is limited to 11KW max on AC due to the AC/DC converter in the car being lower (price) spec.

Try a Charge Place Scotland 23KW outlet near you - you should get 11KW and the in car screen should show a little "3" meaning it's 3-phase. If not then could be a car or cable fault.

 

[SSedan]

Is the pack warming?

 

[Plagued]

model three only displays the current of a single phase. so on a 22KW 3 phase it will only ever show 16A despite charging at 11KW so in your example you're getting three lots of 6A. But if that really is a 22KW charger it should be showing 16A not 6

 

[DaddyCool]

Gap in the rain! - see the screen below

 

[JCremonini]

Odd, as that shows the charger is only offering your car 6a, hence the low rate. But it can’t be the charger, right, as you’ve tried it on another one as well ...

 

[DaddyCool]

Model S can charge on type 2 at 16KW, Model 3 is limited to 11KW max on AC due to the AC/DC converter in the car being lower (price) spec.

Try a Charge Place Scotland 23KW outlet near you - you should get 11KW and the in car screen should show a little "3" meaning it's 3-phase. If not then could be a car or cable fault.

See my photos it is a 22kW charger. Im getting an RFID card soon (using App) and will see how I get on with the 50kW (had no luck unlocking 50kW with app :/)

 

[Adopado]

See my photos it is a 22kW charger. Im getting an RFID card soon (using App) and will see how I get on with the 50kW (had no luck unlocking 50kW with app :/)

It's probably just the charger. The photo does indicate the 3 phase aspect but as others have said you should get 11kW. You definitely need your RFID card so that you can use the CYC 50kW CCS connectors without having to fight with the app.

 

[DaddyCool]

It's probably just the charger. The photo does indicate the 3 phase aspect but as others have said you should get 11kW. You definitely need your RFID card so that you can use the CYC 50kW CCS connectors without having to fight with the app.

Especially in the rain ;-)
Tesla ownership tips
1. Coat in the boot

 

[WannabeOwner]

Longshot : have a look on Plugshare / Zap-Map and see if there are comments from other people about what kW / AMP they got (at that location)

I'm no electrician, is it possible for something onboard to be bust such that it only uses one-phase for charging? (but if I divide 22kW by 3-phases I don't get 4 ...)

 

[Plagued]

it's 3x6x240=4320
but should be
3x16x240=11520

Single phase is either
16x240=3840
or
32x240=7680
give or take a few v on the supply side.

I believe the cable uses resistors to tell the charger what the maximum current it can handle, to prevent you trying to pull 32A down a 16A cable. So there's a possibility you have a faulty cable, if you've never managed to get 11KW before.
I'm also assuming you're using the blue type two cable that came with the car and not a 3rd party one.
I've had plenty of chargers give the wrong current, so ended up with 16A on 32A chargers many times. Nothing wrong with my car or cable as far as I know so always put it down to the unreliability of most public chargers.

 

[WannabeOwner]

should be 3x16x240=11520

Screen shot shows "Max power = 22kW" ... shouldn't it be 3 x 32 x 240 ? (Albeit that M3 can't use all that ... is there where the 16 AMP / 11kW comes in?)

 

[Mr H]

There's a GMEV point near me run by CYC which only give me 4kw too

 

[DaddyCool]

it's 3x6x240=4320
but should be
3x16x240=11520

Single phase is either
16x240=3840
or
32x240=7680
give or take a few v on the supply side.

I believe the cable uses resistors to tell the charger what the maximum current it can handle, to prevent you trying to pull 32A down a 16A cable. So there's a possibility you have a faulty cable, if you've never managed to get 11KW before.
I'm also assuming you're using the blue type two cable that came with the car and not a 3rd party one.
I've had plenty of chargers give the wrong current, so ended up with 16A on 32A chargers many times. Nothing wrong with my car or cable as far as I know so always put it down to the unreliability of most public chargers.

Yes blue cable that came with the car.
At home on my single phase 30A EO charger I get 7kW (I think! - deffo not 4)

 

[DaddyCool]

The thing that frustrates me is people are going to think Im taking the p!ss sitting there all day :/