I need help choosing between 2 Taycans 4S

[whitex]

EVSEs are not chargers. Both AC and DC chargers are built into the car.

That is incorrect. An EVSE delivers AC power to the onboard charger. All DC chargers you connect to are in fact chargers (not EVSE). They are actually very similar to the onboard charger except typically capable of much more power.

The above picture came from this article, which is about proposing a new, less expensive way to build chargers, but the picture is above is about how things work today.

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[whitex]

@MKM
The short of it is this. The 150kW options is only applicable for DC charging with DC chargers (those big cabinets with cables which hook up to only one of the two Taycan ports) which support only 400V cars. Taycans use an 800V architecture, so they natively require a DC charger which supports 800V. If you connect a Taycan to a 400V only capable DC charger, the car will need to boost the 400V to 800V. Standard Taycan gen1 comes with 50kW booster, the 150kW option triples that. At any DC charger that supports 800V none of this matters, no booster is necessary. Also, this doesn't have anything to do with AC charging using EVSEs (which can plug to either side of the Taycan).