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Oooh. Very interesting. Do you have a link please?
Sorry no on the ‘how are they supporting 400V?’ point. Really that’s just a deduction.

If it were reusing the AC charger it would be much lower power, and if it were reconfiguring the pack they’d surely just be offering 150kW out of the box.

The other info is in the car spec/pricing/options configurator which is now online.
 

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Oooh. Very interesting. Do you have a link please?
Go here and try configuring a car.

Under "E-performance" there's an option "150kW DC on-board booster" where the info button says:

Optional on-board DC booster to increase maximum charging capacity up to 150kW when charging at public 400V direct DC rapid chargers. 800V charging capability is unaffected.

The technical data then quotes charge times at 11kW AC, 50kW DC and 270kW DC. Have to assume 50kW DC means 400V.

However, there's something very wrong when a 150kW DC-DC converter costs £ 294.00 (while a fairly boring EVSE costs £ 767.00, and a bracket to mount the EVSE on a wall costs £ 294.00!).

But it's hard to tell what is going on. Re-use of the AC charger as DC converter is ruled out (else they'd have 22kW AC at least). And the base car has 400V capability somehow. My guess is the hardware is actually present in all cars and they just think they can charge a premium for unlocking it - that £294 isn't expensive enough for it to be a real hardware option. It's a bit hard to see why it is so cheap no matter how it is delivered: evidently they felt they had to support 50kW 400V as standard to avoid looking stupid, but given they make 150kW optional, why not charge £500 for it? or £1000? The message is that "proper charging" is 800V.
 

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Hmm, yes, software unlock seems likely given that low price. It will be interesting to see how large and how efficient this 150kW DC-DC converter is.

£767 for their "austerity umc" is...not a bargain.
 

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Go here and try configuring a car.

Under "E-performance" there's an option "150kW DC on-board booster" where the info button says:

Optional on-board DC booster to increase maximum charging capacity up to 150kW when charging at public 400V direct DC rapid chargers. 800V charging capability is unaffected.

The technical data then quotes charge times at 11kW AC, 50kW DC and 270kW DC. Have to assume 50kW DC means 400V.

However, there's something very wrong when a 150kW DC-DC converter costs £ 294.00 (while a fairly boring EVSE costs £ 767.00, and a bracket to mount the EVSE on a wall costs £ 294.00!).

But it's hard to tell what is going on. Re-use of the AC charger as DC converter is ruled out (else they'd have 22kW AC at least). And the base car has 400V capability somehow. My guess is the hardware is actually present in all cars and they just think they can charge a premium for unlocking it - that £294 isn't expensive enough for it to be a real hardware option. It's a bit hard to see why it is so cheap no matter how it is delivered: evidently they felt they had to support 50kW 400V as standard to avoid looking stupid, but given they make 150kW optional, why not charge £500 for it? or £1000? The message is that "proper charging" is 800V.
A couple of thoughts.

It could be that EVSE (and wall chargers in general) are stupidly overpriced.

The other thing is, we’re talking about a £110k car, there is undoubtedly room to add some low cost options, especially ones that let Porsche owners use the existing 400v DC network. If anything, it should be included as standard.

It’s an 800v architecture car, the 400v DC option is to make it ‘backwards’ compatible.

7 or 11kw charging will still be fine for most home chargers, albeit it will take a while from very low state of charge.
 

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The other thing is, we’re talking about a £110k car, there is undoubtedly room to add some low cost options, especially ones that let Porsche owners use the existing 400v DC network. If anything, it should be included as standard.
The ability to use the existing network IS included as standard (apparently). It's this uplift from 50kW to 150kW at 400V that's the optional extra (270kW 800V also standard). It's not clear how many of these 150kW-capable but not 800V capable units are going to get installed: from at least some manufacturers (ABB for example) the kit that can do 150kW can also do 800V.

There certainly isn't a significant installed base of >50kW CCS units..... unless you count Tesla superchargers!
 

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What year will it be when there are more than 20 800v charging stations in the UK? Anyone want to hazard a guess?
Not sure, but I understand 250 kW is possible with 400V charging?

We’ll need to see how it works in the real world, but currently that’s mainly 50 kW chargers. Which will be a bit tedious if you’re trying to get to your next meeting.
 

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I'm pretty sure I remember seeing mention in one of the early videos on the Taycan that they had an onboard DC-DC booster to charge from lower-powered rapids.
When looking at how big the converter would need to be, bear in mind that, for example, to double 400 to 800V at 50kW, you only need a 25kW converter, as the output can be stacked in series with the input so the converter is only providing half of the total output power
 

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The topic of how an 800V car will charge from a 400V charger has been discussed before, with the obvious options being:
  1. it won't
  2. it will do so only at a relatively low rate, effectively by reusing the inverter in the onboard AC charger which would allow 22kWish
  3. it will have an onboard DC-DC converter that will be able step up from 400V to 800V at ~400A
  4. it will have a reconfigurable 2-part pack that can be switched from a parallel mode to a series mode.
So also confirmed in this video that they went for option 3. Which means that it’s very inefficient when charging at 50 kW:

 
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