whitex
Well-Known Member
- Joined
- Jul 30, 2021
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- WA, USA
- Vehicles
- 2023 Taycan TCT, 2024 Q8 eTron P+
The 40.7A was shown on Dave's Porsche EVSE, so it was end-to-end Porsche environment, meaning we're dealing with some sort of German precision example (either measuring or actually consuming). Perhaps they need some Swiss watchmakers on their team to improve their precision?On the subject of whether the Macan shows gross power flow: I just tried the Macan on my 240 volt 16 amp EVSE. The Macan showed 3.8 kW (which would correspond to the maximum gross the EVSE should be able to supply. The EVSE itself displayed: 237 volts, 15.7 amps, 3.7 kW. Aside from the minor discrepancy, it is interesting that my car shows the full rated power on the 16 amp EVSE, but maxes out at showing 9.4 kW when supplied by my ChargePoint at 40, 44 and 48 amps. (Even at 40 amps, it should really be 9.6 if it is taking the full draw.)
Edit: on thinking about this a bit more: in the case of the 16 amp EVSE, the EVSE would be telling the Macan, "my max is 16 amps." If the Porsche power meter is anything like its speedometer, then maybe the Germans actually built in a little wiggle room there, so it doesn't over draw? (Meaning, it takes 3.7 kW when the limit is 3.8 by being a touch over optimistic--so the car says 3.8 when it's really taking 3.7?) Then again, that would be inconsistent with the conversations about the car taking 40.7 amps when it should be taking 40.