The Dance of the Porsche Wall Charger

[CinVinman]

Hi All,
I must be doing something wrong. My process is as follows:
1. Turn on charger.
2. Plug in car. Light flashes white. And flashes... and flashes. Sooner or later goes red, but I don't wait that long anymore.
3. I press the flashing button, disconnect ansd reconnect.
4. Then and only then does the wall charger recognize the car and ask for my passcode.

I'm thinking there must be a way to just plug it in and it works. Thoughts?

Vince

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[daveo4EV]

warranty issue for your Porsche dealer - it should work the first time you plug it in

does it behave this one on both sides of the car - that will help w/diagnosis.

also disable the passcode and see if that helps.

 

[thecoloradokid]

Hi All,
I must be doing something wrong. My process is as follows:
1. Turn on charger.
2. Plug in car. Light flashes white. And flashes... and flashes. Sooner or later goes red, but I don't wait that long anymore.
3. I press the flashing button, disconnect ansd reconnect.
4. Then and only then does the wall charger recognize the car and ask for my passcode.

I'm thinking there must be a way to just plug it in and it works. Thoughts?

Vince

You forgot Step 5.

Replace the Porsche Charger with a reliable 3rd party wall charger like a Chargepoint. This charger is a workhorse and easily charges both my Taycan and my F-150 with no issues.

Many utility companies are even offering rebates if you install a wall EV charger. I got a $500 rebate check from Xcel Energy when I installed my Chargepoint wall charger last year.

 

[Vfr750Rouge]

Nine is plug and charge from standby mode - it takes about a minute to boot the charge talk to the car. Work flawlessly.
updated to latest firmware and no PIN code set.
Charge consistently at 79.5 KWh.

 

[daveo4EV]

Nine is plug and charge from standby mode - it takes about a minute to boot the charge talk to the car. Work flawlessly.
updated to latest firmware and no PIN code set.
Charge consistently at 79.5 KWh.

79.5 kWh is a capacity measurement - like gallons in a bath tub (kilo-watt hours)

not a flow rate

kW's (note the lack of an "h') kilo-Watts is a measurement of charging speed/flow-rate

what is your kW's while charging from your Porsche wall charger - the kW rate should be between 2 kW and 19.2 kW - that is the range of possible values for a North American Porsche Wall charger.

for example if your flow rate (kW) is 9.6 kW - charging at a flow rate of 9.6 kW for 1 hour = 9.6 kilo-watt hours on your electrical meter - two hours @ 9.6 kW is 19.2 kWh of capacity.

thanks in advance.

 

[Archimedes]

Nine is plug and charge from standby mode - it takes about a minute to boot the charge talk to the car. Work flawlessly.
updated to latest firmware and no PIN code set.
Charge consistently at 79.5 KWh.

I’m sorry, you get 79.5 kWh charging from a Level 2 home charger?!

 

[gnop1950]

I have the PWCC and haven't had any issues. Only one car on the authorization list, my Taycan, and I don't use a pin. I plug it in and it starts charging assuming it is in the charging window I set up on the profile. If it isn't and I need a quick charge I just change it to direct charging.

So far I haven't had any issues, it just works. With the issues you've described, I'd be inclined to have the dealer check it out.

 

[daveo4EV]

I’m sorry, you get 79.5 kWh charging from a Level 2 home charger?!

there is deep confusion in that statement - not with @Archimedes - but the original posting…79.6 kWh makes no sense other than the amount power delivered in a single session (battery would've been below 10% to have that much power delivered) - or maybe an accumlated total of several 7-10 kWh sessions over a week or two.

79.6 kWh is about 200 miles of Taycan driving.

 

[Raphie]

Yes domestic bandwidth 3.7kW/h - 7kW/h - 11kW/h - 19.2kW/h - 22kW/h
above being limited to your Amperage and/or nvr. Of fases of your home connection
the latter charging nearly 6x as fast.
then there is up to +/- 10% efficiency loss

 

[O2TheL]

I'm interested in Step 1.
I just leave my charger switched on all the time. Is that a problem?

 

[Vfr750Rouge]

Oups, I wrote garbage.....all wrong - apologies! 2 pictures ... always better.
The things work well from day one - the thing is turning on it self from sleep mode.

 

[daveo4EV]

Oups, I wrote garbage.....all wrong - apologies! 2 pictures ... always better.
The things work well from day one - the thing is turning on it self from sleep mode.

17.9 kW is about right for 19.2 kW "raw" - there are losses between the raw power feed and what Porsche reports inside the vehicle - as best I can determine the 17.9 kW number porsche shows is the amount of power being added to the battery "post losses"…

picture shows 79.9 amp - 78.9amp * 240V = 18,936 watts or 18.93 kW "raw" power being fed into the Taycan (what a great charge rate!!)

inside of vehicle shows 17.9 kW - so 17.9 kW / 18.93 kW = 94.558 (95%) efficiency - so about 5% overhead losses as part of the charging process - this is inline with other EV's and expectations.

so this all makes sense…

17.9 kW will fill your Taycan 84.3 kWH battery from 0% to 100% in 4.7 hours…good charge rate if you can get it - no question - I miss the 80 amp charge rate from my two Model S's P85 & P85D

 

[Raphie]

It took me a while too to convert from fuel consumption to kWh charge and consumption.

 

[kennykill]

I got a Tesla charger for Xmas and haven't had a single problem since the installation -- only been a month tho.

 

[daveo4EV]

Hi All,
I must be doing something wrong. My process is as follows:
1. Turn on charger.
2. Plug in car. Light flashes white. And flashes... and flashes. Sooner or later goes red, but I don't wait that long anymore.
3. I press the flashing button, disconnect ansd reconnect.
4. Then and only then does the wall charger recognize the car and ask for my passcode.

I'm thinking there must be a way to just plug it in and it works. Thoughts?

Vince

still looking for answers to two diagnositic questions:

1. does it happen on both sides of the car?
2. does it happen if you disable the vin checking?

both of those answers will help in diagnosing likely root cause.

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