Domestic electrical charger - Porsche vs Tesla one

[byebye]

I need a backup solution to charge even thought there isn’t an available wallbox.

The one delivered by Porsche is overpriced and accept a maximum of 10A (where standard sockets in France can accept 13A max with correct fuse/wires), meaning that in the best case scenario I will achieve 240 x 10A = 2.4 kWh
Why does Porsche enable this sort of limitations?

I‘ve tested the one available at Tesla: 200euros and almost 13A: 2,9kWh (my voltage is around 230v).

 

[krissrock]

sounds like you just need an electrician to install a 50-60amp circuit for you...then you can choose from many of the available wallboxes on the market...

 

[W1NGE]

I need a backup solution to charge even thought there isn’t an available wallbox.

The one delivered by Porsche is overpriced and accept a maximum of 10A (where standard sockets in France can accept 13A max with correct fuse/wires), meaning that in the best case scenario I will achieve 240 x 10A = 2.4 kWh
Why does Porsche enable this sort of limitations?

I‘ve tested the one available at Tesla: 200euros and almost 13A: 2,9kWh (my voltage is around 230v).

10A - are you sure?

What is the model number / serial number of your Porsche unit (EVSE / Charger)?

 

[krissrock]

10A - are you sure?

What is the model number / serial number of your Porsche unit (EVSE / Charger)?

my understanding of his statement is that he does not have an available socket/circuit over 13 amp? So the EVSE is only pulling 10 amps. These things never pull the max amperage right...they pull about 10% under the available amperage ?

?

 

[daveo4EV]

my understanding of his statement is that he does not have an available socket/circuit over 13 amp? So the EVSE is only pulling 10 amps. These things never pull the max amperage right...they pull about 10% under the available amperage ?

?

I"m not sure about Europe - but for North American EVSE's are supposed to only pull 80% of rated circuit load - so a 16 amp charge rate requires a 20 amp circuit breaker and corresponding appropriate wire gauge

this is because EVSE's are considered as "continuous use" devices - meaning they can operate at max current for 2 or more hours - in North America these types of devices are expected to comply with an 80% load factor if they are continuous use devices…

common breaker sizes are therefore mapped to the following charge rates

Circuit Breaker Size	Max EVSE Charge rate	KWs @ 240 volts	Notes
15 amp	12 amp	2.88	normally L1 @ 120V 1.44 kW
20 amp	16 amp	3.84	normally L1 @ 120V 1.92 kW
30 amp	24 amp	5.76	Electric Dryer/Waterheater/Stove/Oven
40 amp	32 amp	7.68
50 amp	40 amp	9.6	Max Mobile EVSE Limit - NEMA 14-50/6-50
60 amp	48 amp	11.52	hardwired only EVSE >= 60 amps
80 amp	64 amp	15.36
100 amp	80 amp	19.2	Max EVSE Limit J-1772

the North American SAE J-1772 EVSE standard only documents a maximum charge rate of 19.2 kW or 80 amps @ 240 volts - so there are no EV's or EVSE's that offer L2/AC charging at greater than 19.2 kW…

I'm not sure what the electrical codes in Europe require for EVSE's on a given circuit.

 

[W1NGE]

my understanding of his statement is that he does not have an available socket/circuit over 13 amp? So the EVSE is only pulling 10 amps. These things never pull the max amperage right...they pull about 10% under the available amperage ?

?

That's not how I read it. The post is stating that the Porsche EVSE only supports 10A which as we know is highly improbable and will be rated to at least 32A to support 13A (2-pin plug), 16 or 32A (industrial connector).

13A is only if you wish to charge slower than a glacial melt and 32A gives you something reasonable - 0.3 mile / minute domestic charging on a single phase electricity supply with all connectors rated at 32A.

I suspect the EVSE may be limited to 16A but would be surprised and would hope for 32A.

The domestic supply will be governed by whatever is available.

 

[krissrock]

That's not how I read it. The post is stating that the Porsche EVSE only supports 10A which as we know is highly improbable

right, but he's saying that they socket is only rated up to 13 amps...so the EVSE should not pull 13 amps on a 13 amp circuit.
that's my point. If it's a 13 amp circuit, would it pulling only 10 amps make sense?

in France can accept 13A max with correct fuse/wires

 

[Grumpy]

I am lucky enough to have three phase supply which allows me to have a 22KW home charger. The problem is that the Macan in common with most but not all electric cars can only handle/ draw 11kw

 

[krissrock]

I am lucky enough to have three phase supply which allows me to have a 22KW home charger. The problem is that the Macan in common with most but not all electric cars can only handle/ draw 11kw

are you getting 11 tho?

 

[W1NGE]

right, but he's saying that they socket is only rated up to 13 amps...so the EVSE should not pull 13 amps on a 13 amp circuit.
that's my point. If it's a 13 amp circuit, would it pulling only 10 amps make sense?

Doesn't matter now but you're reading too much into the post.

 

[byebye]

In France, normal domestic socket is rated for 13A max.
With my Tesla S and the Tesla portable charger: 3kW
With my Macan and the Porsche portable charger: 2.4kW
With my Macan and the Tesla portable charger: 2.9kW

I do have a wall box (32A), and sometimes when traveling it’s nice being able to charge on a domestic socket during the night.

 

[W1NGE]

I am lucky enough to have three phase supply which allows me to have a 22KW home charger. The problem is that the Macan in common with most but not all electric cars can only handle/ draw 11kw

Excellent so you can get around 10.4kW then.

22kW is only an option on the Taycan and not yet on the Macan EV which is probably a good thing as it has a poor track record.

 

[byebye]

10A - are you sure?

What is the model number / serial number of your Porsche unit (EVSE / Charger)?

The limitation is related to the adaptator you plug on the mobile charger, this one for domestic socket:

https://shop.porsche.com/fr/fr-FR/p...ur-prise-domestique-7PP971678DF-B/7PP971678BH

 

[W1NGE]

In France, normal domestic socket is rated for 13A max.
With my Tesla S and the Tesla portable charger: 3kW
With my Macan and the Porsche portable charger: 2.4kW
With my Macan and the Tesla portable charger: 2.9kW

I do have a wall box (32A), and sometimes when traveling it’s nice being able to charge on a domestic socket during the night.

Yes but what supply cables did you get with your Porsche EVSE?

The 13A is really only intended as an emergency measure or when travelling.

I got both a 13A and 32A supply cable with mine so hence the questions. I use the 32A supply cable to connect to a 32A dedicated fused supply to get 7.4kW.

 

[W1NGE]

The limitation is related to the adaptator you plug on the mobile charger, this one for domestic socket:

https://shop.porsche.com/fr/fr-FR/p...ur-prise-domestique-7PP971678DF-B/7PP971678BH

Yes I know but is there not an option for a 32A supply cable?

Mine came with both but perhaps things have changed.

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