Is the new 19.2 kW on board charger worth it?

[Eric]

Wow! This is great to hear. There’s been uncertainty about whether the PWCC will handle other EVs. (You are talking about the PWCC not the PMCC, right?)

Thanks for sharing! ?

the regular porsche charger which comes with the car

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[snstevens]

the regular porsche charger which comes with the car

That’s surprising, but good news too! If PMCC works then I’m sure PWCC will work.

 

[daveo4EV]

my PMCC's still fail and often "fault" when trying to charge my son's 2022 Model Y and my Daughters 2023 Model Y…internal circuit break trip…

 

[AmpedUp]

I installed the 80 amp Porsche wall charger with the 19.2 kW onboard charger. To answer your questions:

1) Should you option it? That depends, but it probably isn't worth it for most people.
- If the EVSE is being installed in your house, consider the fact that you can already easily charge overnight with the standard 11 kW charger (ignore the 9.6 kW number you may see referenced... the standard onboard charger will accept up to 48 amps, not 40). With that charge rate, you can go from 0-100% in under 9 hours (for Performance Battery Plus). So you will ALWAYS be able to charge overnight no matter the starting or targeted SoC.
- Very few public Level 2 chargers offer 80 amps / 19.2 kW, so pretty much the only place you MIGHT benefit from it is at home (see above)
- Incremental cost of the onboard charger
- Incremental cost of the EVSE
- Incremental cost of the EVSE install (if you have existing 240 amp plug in your garage you could use)

2) Does it make a significant difference?
- Yes, it does. Charging rates are 67% faster (80 amps vs 48 amps), so you can charge your vehicle with 40% less time! This means you can charge from 0-100% in just 5 hours, and 10-85% is less than 4 hours.
- Whether you benefit from the faster charging speed in practice depends on how often you would need to charge a significant percentage in less than full-overnight timeframe. Some examples might include a) "I forgot to charge overnight and I leave in an hour!", b) "I just got back from a road trip and I need to quickly charge up so I can drive to pick up my dogs from the dog boarding place", or c) "I am an investment banker and I'm only going to be at home long enough to shower and then need to drive back to the office for another 20 hour workday."
- If your car gets charged by 2am instead of 5am every day, does "make a difference"? Most people, no.

There are really only two reasons to pay for the added charging rate. You either simply want the best charging experience possible (perhaps to persuade the skeptical wife that electric is amazing because you can get a "full tank" on a moment's notice), or you have a genuine need to charge fast (perhaps you are planning to install the EVSE at your office and typically need to go out for client meetings, so are often only at the office for a few hours a day).

Also, before making this investment, check that the location you want to install it can even HANDLE a 100 amp circuit. For example, my last home was built in 1968, and it only had 60 amps for the entire house. Allocate some for the water heater, dryer, oven, stove, and heat pump and you can quickly see that even adding a 30 amp circuit was challenging without upgrading the grid connection. A 100 amp circuit was obviously impossible. I actually charged on a 120v at 10 amps (to avoid tripping the 15 amp circuit breaker it was on). I charged constantly whenever at home and all weekend just to keep up... but even that trickle charge was enough to keep up with my driving. It got low from time to time and made me nervous by Friday, but then the weekend would come and it would catch up again. I'd need to occasionally borrow my wife's car for errands, but generally even that worked ok.

 

[bluedonkey]

Mine came with it (was spec'd by the dealer), but honestly I've never used more than ~10kW which my home EVSE (I had one for my previous EV) can deliver. That charges the car overnight which is the fastest I've needed.

To use the full 19kW, you'd need to have a 100A circuit (80A continuous) installed where you plan to charge. For the 10kW you just need a NEMA 14-50 (50A, 40A continuous) circuit.

If you are looking at options for charging though, the most important one to get would be KM2 (On board 150kW/400VDC charger) as that will let you get 150kW at Tesla SC locations, and other 400V locations (without it you can only get 50kW at 400V DC chargers).

 

[ciaranob]

Most new to the Taycan are installing or have been advised to install a std. 50A breaker with 40A power delivery usually referencing a plug-in EVSE which will not give you 11kW (read 10.5 at the car) but will max. at up to 9.6kW (in reality 8.x at the car), hence why this has been mentioned and most def should not be ignored. Either option just fine for overnight charging.

This is not a discussion as to the capability of the car with the std onboard charger to accept 11kW, I think (or hope!) most are aware of this, but rather what your electrical setup is in respect what's available for the car to draw from, ranging up to max. accessible 11kW with the std onboard charger. To my knowledge (correct if wrong) the plug-in PMCC can only deliver 9.6kW to your car - it needs to be de-plugged/hard wired to deliver up to 11 kW.

For those about to install electrical supply and considering options then for sure I would (as I have myself) most def suggest the hard wired option which turns your mobile EVSE into a hard wired non-mobile EVSE. My ChargePoint HomeFlex was purchased as a plug-in mobile unit that (as designed to be) was converted to hard wired with a 60A breaker and 48A power.

AFAIK (and please correct if wrong), regulations in the US require installations above 50/40 to be hard wired.

 

[snstevens]

my PMCC's still fail and often "fault" when trying to charge my son's 2022 Model Y and my Daughters 2023 Model Y…internal circuit break trip…

Big disappointment here.

Any idea why @Eric 's Tesla neighbors have no issue? He does mention charging at 32A but that shouldn't change anything.

Damn I'd like to run an overnight test in my garage. Any volunteers in the Seattle area DM me to set something up. Free electrons if it works!! ?

 

[W1NGE]

can you get 11kW if you do not have the 19.2 option but do have the capabilities at home? 80+ Amp circuit hardwired)

Yes as long as you have sufficient power - ask your Electrician but if you can support 19.2 then 11kW is a doddle.

 

[snstevens]

One additional thought on specing 19.2KW. The cost of the 19.2KW Upgrade is $1,680, and if that doesn't break the bank on your order, then it gives you options going forward.

I happen to like having options, and in my next Taycan I plan to include the 19.2KW option. BTW, the current cost of a PWCC is $1,670, and from Enphase (formerly Clipper Creek) a 64A hardwired charger is $1,176. I suspect prices for 80A capable EVSE's will come down over time, so that is also something to consider.

I total get that there are cheaper ways to do this and that this is really overspecing the solution to what is an overnight charging problem.

 

[daveo4EV]

Most new to the Taycan are installing or have been advised to install a std. 50A breaker with 40A power delivery usually referencing a plug-in EVSE which will not give you 11kW (read 10.5 at the car) but will max. at up to 9.6kW (in reality 8.x at the car), hence why this has been mentioned and most def should not be ignored. Either option just fine for overnight charging.

This is not a discussion as to the capability of the car with the std onboard charger to accept 11kW, I think (or hope!) most are aware of this, but rather what your electrical setup is in respect what's available for the car to draw from, ranging up to max. accessible 11kW with the std onboard charger. To my knowledge (correct if wrong) the plug-in PMCC can only deliver 9.6kW to your car - it needs to be de-plugged/hard wired to deliver up to 11 kW.

For those about to install electrical supply and considering options then for sure I would (as I have myself) most def suggest the hard wired option which turns your mobile EVSE into a hard wired non-mobile EVSE. My ChargePoint HomeFlex was purchased as a plug-in mobile unit that (as designed to be) was converted to hard wired with a 60A breaker and 48A power.

AFAIK (and please correct if wrong), regulations in the US require installations above 50/40 to be hard wired.

PMC+/PMCC are max 9.6 kW EVSE's in North America - you can not convert them to "hardwired" to get more power…Porsche has no such support/powersupply cable for north america.

all EVSE's over 50 amps in north america are hardwired as per-building codes

some EVSE's can be plug-based or hardwire from various manufacturers - but once you're past a 50 amp break size it must be hardwired…

the ONLY Porsche option for 11 kW (48 amp 60 amp breaker) is a Porsche Wall Charger Connect (PWCC) - and it's only hardwired, but adjustable from 15-100 amp breakers…

if you want 11 kW (48 amp) charge rate for Taycan in North America you need a PWCC or alternative EVSE from Enphase/Clippercreek, Chargepoint, Tesla J-1772 Wall, Wallbox, JuiceBox, etc…

 

[ciaranob]

Ah, as I thought - just wasn't sure re the possibility of hardwiring the PMCC - makes it even less attractive if thats possible at this stage!

 

[andrewh3]

I had this installed as a retrofit December 2022 as part of the major software update, as recommended by Porsche....
The charger was apparently quite easy (half a day). The software update in contrast took 4 days.
I charge mainly at home (240V, 24AMP, Single phase). No difference as it delays starting charge to midnight anyway to reach 85% by 06:00. In public car-parks with non-DC it is perhaps 5% to 10% quicker.
For Australia (very few public chargers) in 2023, not really worth the extra cost retrofit unless you are planning longer trips outside metro areas.

 

[Eric]

my PMCC's still fail and often "fault" when trying to charge my son's 2022 Model Y and my Daughters 2023 Model Y…internal circuit break trip…

My condo customers drive the "S" a couple of years old

 

[Eric]

my PMCC's still fail and often "fault" when trying to charge my son's 2022 Model Y and my Daughters 2023 Model Y…internal circuit break trip…

Try setting the amps at 32 .If you set at the maximum of 40 amps on the Porsche charger it will trip the internal breaker

 

[daveo4EV]

Try setting the amps at 32 .If you set at the maximum of 40 amps on the Porsche charger it will trip the internal breaker

same fault all the way down to 24 amps

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