Rgwirtz

Ok, so I just bought a used Taycan Turbo. It replaced a Panamera E-Hybrid. I had an old Porsche mobile charger installed in my Porsche outdoor case (oval one). That one charges the Taycan VERY slowly. I think it’s only a 3.5kw rated charger (model 7PP.971.675.B). The charger that came with the Taycan says it’s 9.6 kw and is a Porsche Mobile Charger Connect 9Y0.971.675.BL. I have 240V service connected to my charger. If I replace the old one with the new one will I only get 9.6Kw throughput? Is there a charger that would give me the maximum 22kw? Not sure if it matters, but the Taycan has the optional 150kw/400V onboard charger option.

If this is covered somewhere else please direct - apologies in advance!

ShiftyWolf

Hi. The Mobile Charger Connect can only charge up to 9.6kW max, and that's if you have a 50A 240V receptacle installed (40A × 240V = 9.6kW). You can buy a larger charger but there's usually no need if you only charge one car at a time and overnight.

The 150kW option is only for DC fast chargers, not the one in your home.

CodyBigdog

^ This.

Rgwirtz

I get the math. So the 3.6kW charger (my old one) is just “stepping down” the 9.6Kw because the charger itself can’t handle more? And the 9.6 Kw rated charger (new one) can just pass through the full current? Really appreciate the help!

ShiftyWolf

If I'm reading the attached correctly, it appears that your original charger part #7PP.971.675.B is limited to 3.6kW max.

Rgwirtz

Yes - and that’s exactly the throughput I’m getting.

ShiftyWolf

Yeah, it looks like your original is now a museum piece. As long as you have the proper wiring and receptacle, the Mobile Connect will give you up to 40A to the Taycan when you charge at home.

daveo4porsche

few things in no particular order:

• your old charger is limited to 3.6 kW - so that's the best _ANY_ EV will do charging with it - it's perfectly fine - just slow
• chargers are actually called EVSE's - the actual vehicle charger is inside the vehicle and converts AC power to DC power to charge the battery - the EVSE is a glorified extension cord with power flow control for safety - most any north American EVSE can charge most any EV - you are not limited to Porsche EVSE's to charge yoru Taycan or any other EV…
• the mobile EVSE included with Taycan has a maximum charge rate of 9.6 kW when coupled with a NEMA 14-50/6-50 outlet - this is a 240V 50 amp circuit
• depending on your install you may have a NEMA 14-50/6-50 _OR_ NEMA 14-30/6-30 outlet
  • you may have either a 50 amp circuit - which will support 9.6 kW charging
  • you may have a 30 amp circuit - which will support 5.7 kW chargign
  • check your breaker size on your EV charging circuit
  • you may have a 30 amp circuit because that is sufficient for a 3.6 kW EVSE - so your electrician may have installed that originally - you'll have to check
    • a 240V/30 amp circuit supports a charge rate of 5.76 kW - more than enough for a 3.6 kW EVSE
• the Taycan comes standard with an 11 kW on board charger - that requires a 60 amp circuit and due to North American building codes _MUST_ be hardwired - no 60 amp outlets - hardwired only - 50 amp is the maximum capacity residential outlet for North Amreican - anything with greater capacity must be hardwired
  • there are numerous excellent EVSE's that can be hardwired for 60 amp or more (upto 100 amp maximum)
• 22 kW AC charging is not a thing in North america - it's 19.2 kW charging - 22 kW charging is the european limit, 19.2 kW is teh 240V/100 amp North American EVSE limit
  • 19.2 kW charging is an optional on board charger that is normally installed at the factory - if you Taycan does not have this optional charger you will be limited to 11 kW (60/48 amps)
  • 19.2 kW charging requires a 100 amp breaker and an associated 100 amp EVSE
    • the included Porsche EVSE w/Taycan is mobile - and therefore limited to plug based maximum capacity - 50 amp circuits - 9.6 kW is the maximum rate it can charge because of it's plug-based mobile nature - more than 50 amps requires hardwired EVSE's which would not be mobile.
  • consult your local licensed electrician about funding his kids college education for a 100 amp EVSE circuit install
  • Porsche Wall Charger can be configured to support 100 amp (19.2 kW) charging - it's about $1500 and must be hardwired
  • if your Taycan "lacks" the 19.2 kW charger option you can retro fit it for $5000++++ at your porsche dealer - mostly this is _NOT_ worth it - since 19.2 kW charging is not a thing you'll find very often in wild - only get this option if you have a 100 amp EVSE for home use, cause you'll only rarely run into one of these EVSE's when away from home.
• all North American EVSE's only charge at 80% of the rated breaker load for a given circuit to avoid overheating the wires for a given 240V circuit
  • 50 amp breaker = 40 amp charge rate - 9.6 kW
  • 60 amp breaker = 48 amp charge rate - 11 kW
  • 100 amp breaker = 80 amp charge rate - 19.2 kW
• Porsche recommends/requires a Hubble commercial grade NEMA socket for 9.6 kW charging - their EVSE comes with a barely adequate wire gauge for 50/40 amp charging - so the power supply cable will get quite toasty in normal 9.6 kW use - this can (and has) melt(ed) lesser NEMA plastic sockets leading to potential fire hazards or worse
  • I _HIGHLY_ recommend following this advice - the Porsche EVSE running at 9.6 kW will get quite toasty and thermallly stress cheap plastic $12 NEMA sockets and cause them to eventually fail/melt - industry best practice is for the Hubble commercial grade socket and it's with good reason - this is something you don't want to wimp out on
    • 9.6 kW is a lot of power and a lot of heat - your 3.6 kW charge rate is not nearly as thermally stressful as 9.6 kW - so upgrade your socket before charging at the higher rate
      • or get a hardwired 9.6/11 kW EVSE and be done with the problem
  • VW/Audi has just recalled their EVSE's for this issue (their EVSE is identical to the Porsche models) - https://www.consumerreports.org/cars...g-a1116478427/
    • no word from Porsche as to if the recall and replacement power supply cable will be provide to Taycan owners
  • see post #107 - https://rennlist.com/forums/taycan/1...l#post18968929
  • see post #99 - https://rennlist.com/forums/taycan/1...l#post18509042
  • see post #93 - https://rennlist.com/forums/taycan/1...l#post18495910
• the Porsche/VW/Audi EVSE's are not the best EVSE's is my opinion - but they are the most expensive North American EVSE's - many many many forum Taycan owners have opted for alternative EVSE's and the vast majority find them to be superior to the Porsche options and also they run cooler and with less drama/stress
  • the Porsche EVSE has a long history of mediocrity - documented here - https://www.taycanforum.com/forum/th...cc-pwcc.13886/
  • the best hardwired EVSE in my opinion is the Tesla Universal Wall charger for $600 - it can charge any EV and supports both NACS/Tesla plugs types and J-1772 plug types and has other features and options - adjustible charge rates from 15-60 amps - and power sharing for charging multiple EV's - great option for $600 and very reliable.
• the optional 400V/150 kW option will allow you to charge yoru Taycan at up to 150 kW at Tesla Superchargers in 2025 with an adatper or today at 150 kW at select supercharger sites w/MagicDock - without that option your Taycan would've been limited to 50 kW

I hope this help.

daveo4porsche

Posrche just recalled their EVSE due to high operating temperatures - they are of course blaming the victim, but will update the powers supply cable mid-2024

https://www.taycanforum.com/forum/th...5/#post-279566

I still prefer a non-Porsche EVSE - I feel they are a better option and don't run so hot in normal use.

abatis

I replaced my burned up Porsche Charger with a Mustart 40A. The Mustart cables are much beefier than the Porsche charger. No hot wires now.

whiz944

To add to Dave's excellent post, as your existing EVSE is rated for 16 amps, it may only be on a 20 amp circuit. If so, you'll need to install an upgraded circuit (thicker wires, different receptacle and breakers) to charge at higher power with your new EVSE.

But maybe try your existing setup for a bit. Depending on how many miles you drive, it may suffice. At 3.8 kW, a Taycan would charge at roughly 11-12 miles/hour (ymmv). So overnight you could easily replenish 100 miles.

whiz944

As part of the J-1772 protocol, the EVSE tells the cars on-board charger the max current it can supply. In your case, the older EVSE tells the car it can supply 16 amps. The on-board charger in the car does the rest. Other than that, and some basic safety checks, the EVSE really doesn't anything more than turn the power on or off.

Rgwirtz

Daveo4Porsche - Absolutely fantastic post! So helpful.
I was thinking of swapping out the 3.6 for the 9.6 Kw Porsche EVSE - but now I’m nervous. Pretty ridiculous for something they sell for $1,200 and comes standard with the car!

Rgwirtz

Yes - I’m getting about 3.6Kw throughput, so on the battery that’s 93.4 Kw it would take 26 hours to charge to 100% (from zero) or in more realistic circumstances, 25% to 85% (or 60% of 26 hours - so about 15.5 hours. Not ideal, but workable. I have 40 amp service so there’s no reason to have to live with such low throughput. I’ll look for a new EVSE.

daveo4porsche

you can use the porsche EVSE w/40 amp circuit if you have a hubble NEMA socket - and then you can take your time to find a replacement EVSE when you're ready if the Porsche EVSE disappoints you…

you can safely use the Porsche EVSE with a non-Hubble socket at 32 amps or less if you have the PMCC (the one with the LCD screen)

hubble socket is recommended/best-practice for _ALL_ EVSE's Porsche or otherwise.