“and claims a charging rate of up to 11 kW and with an efficiency of about 90% for easy overnight charging.”
That’s a some 9kW lost on a 80kW battery. I get the convenience, but I think the best use for those would be when standardized and installed in public parking spots, for a brief charge bump, not to charge fully at home, e.g overnight, which is what Porsche aims for.
The 90% efficiency of the wireless transmission would be on top of the efficiency of typical charging (which is mostly losses after the power reaches the vehicle).
Porsche is famous for underpromising and overdelivering.
For instance they claim a 0-60 time of 2.4s for this car. Car & Driver independently tested it and achieved 2.1s. They also claim 298 miles of EPA range (mixed highway & city driving). Car & Driver worked out 300 miles at a constant 75 mph (which is harder on an EV than city driving.) On the base model, which claims 303 miles range, MotorTrend achieved 350 miles of pure highway driving.
Pick any Porsche and you'll see that they lie to make things sound worse than they really are.
German brands in general tend to do that - BMW is notorious for under-reporting power, for example. They'd rather understate than have customers be mad at them for underdelivering.
cromka · · focus · HN ↗
That’s a some 9kW lost on a 80kW battery. I get the convenience, but I think the best use for those would be when standardized and installed in public parking spots, for a brief charge bump, not to charge fully at home, e.g overnight, which is what Porsche aims for.
cisc · · focus · HN ↗
It's about the same as wired AC charging. There are always charging losses:
<a href="https://insideevs.com/features/711659/ev-charger-efficiency-losses/" rel="nofollow">https://insideevs.com/features/711659/ev-charger-efficiency-...
onetwentythree · · focus · HN ↗
cisc · · focus · HN ↗
1970-01-01 · · focus · HN ↗
It is "up to 90%"
We all know what this means in reality.
randerson · · focus · HN ↗
For instance they claim a 0-60 time of 2.4s for this car. Car & Driver independently tested it and achieved 2.1s. They also claim 298 miles of EPA range (mixed highway & city driving). Car & Driver worked out 300 miles at a constant 75 mph (which is harder on an EV than city driving.) On the base model, which claims 303 miles range, MotorTrend achieved 350 miles of pure highway driving.
Pick any Porsche and you'll see that they lie to make things sound worse than they really are.
piperswe · · focus · HN ↗