louv
Well-Known Member
- First Name
- Don
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- Sep 6, 2019
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- Maine
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- Taycan Turbo (sold), Mini Cooper SE, Mercedes Sprinter RV, BMW K1600GT
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tl;dr: Temperature and SoC (State of Charge).
We've all see the "Recharge from 5% to 80% in 22 minutes claims". Well, I haven't been able to experience that yet. And it was bugging me. Why not? Why can't *I* have that much POWER?!?
So I dug back into the manuals. Couldn't find anything useful or specific.
I dug into Porsche's Press Releases. It's probably there, but I couldn't find it there either.
Jalopnik. Here's the data I wanted. I have no doubt this data was handed to all of the Press when they were invited to the Press Introductions of the Turbos and 4S.
I live in Maine. It's winter here. Temperature is my biggest hurdle.
A couple of examples:
Even with some preconditioning my battery temperature was only 39°F after driving to my local grocery store. I plugged into a 50kW EVgo charging station and it talked to the car, then the station said it Failed. Five times. I *think* that was because the battery pack was too cold. But there wasn't any indication, either on the station or from the car, what the reason for the failed charging session was.
I drove the car to another charging station, five miles away, with Preconditioning turned on. By the time I arrived, there was some heat in the battery. 57°F. A 350kW station would now only charge at about 50kW. My SoC to begin with was around 50%.
So I found this chart in the Jalopnik Article: (I modified it slightly)
A few things here. There was no way I was going to get more than 50kW. The car and battery were just too cold, and my battery pack was at too high state of charge.
I will never see max charge rates unless the battery is Hot, that is, above 25°C/77°F. And the Initial SoC is below 20%. OK then. Now I know.
Getting all 1,389 pounds of the battery pack heated up from 20°F to 77°F is going to take quite a bit of power. I guess it is only realistic if I'm on a road trip. It doesn't make sense just running down to the local grocery store, and heating up the battery, just to bring the SoC from 60 to 80%.
This chart should be stuck on the inside of every windshield. Better yet, the car should say, "Based on your battery SoC and Temperature, your maximum charge rate will be approximately 50kW." That way I don't have to bother going across town for a 350kW charger, if the 50kW charger is close by.
This tidbit is interesting as well.
The Charging Planner would be very helpful. You know... if I even knew where the charging planner was. Or how to use it. I *think* that by using the Nav to find a charger in the "Porsche Charging Service", and then going to it, the Charging Planner automatically kicks in. Except that (currently) when I ask my Nav for that list , it says "No Results". None found, ever, even if I'm parked next to one. Not yet ready for Prime Time. Hopefully this will be fixed by the time most folks get their cars.
View attachment 2683
We've all see the "Recharge from 5% to 80% in 22 minutes claims". Well, I haven't been able to experience that yet. And it was bugging me. Why not? Why can't *I* have that much POWER?!?
So I dug back into the manuals. Couldn't find anything useful or specific.
I dug into Porsche's Press Releases. It's probably there, but I couldn't find it there either.
Jalopnik. Here's the data I wanted. I have no doubt this data was handed to all of the Press when they were invited to the Press Introductions of the Turbos and 4S.
I live in Maine. It's winter here. Temperature is my biggest hurdle.
A couple of examples:
Even with some preconditioning my battery temperature was only 39°F after driving to my local grocery store. I plugged into a 50kW EVgo charging station and it talked to the car, then the station said it Failed. Five times. I *think* that was because the battery pack was too cold. But there wasn't any indication, either on the station or from the car, what the reason for the failed charging session was.
I drove the car to another charging station, five miles away, with Preconditioning turned on. By the time I arrived, there was some heat in the battery. 57°F. A 350kW station would now only charge at about 50kW. My SoC to begin with was around 50%.
So I found this chart in the Jalopnik Article: (I modified it slightly)
A few things here. There was no way I was going to get more than 50kW. The car and battery were just too cold, and my battery pack was at too high state of charge.
I will never see max charge rates unless the battery is Hot, that is, above 25°C/77°F. And the Initial SoC is below 20%. OK then. Now I know.
Getting all 1,389 pounds of the battery pack heated up from 20°F to 77°F is going to take quite a bit of power. I guess it is only realistic if I'm on a road trip. It doesn't make sense just running down to the local grocery store, and heating up the battery, just to bring the SoC from 60 to 80%.
This chart should be stuck on the inside of every windshield. Better yet, the car should say, "Based on your battery SoC and Temperature, your maximum charge rate will be approximately 50kW." That way I don't have to bother going across town for a 350kW charger, if the 50kW charger is close by.
This tidbit is interesting as well.
The Charging Planner would be very helpful. You know... if I even knew where the charging planner was. Or how to use it. I *think* that by using the Nav to find a charger in the "Porsche Charging Service", and then going to it, the Charging Planner automatically kicks in. Except that (currently) when I ask my Nav for that list , it says "No Results". None found, ever, even if I'm parked next to one. Not yet ready for Prime Time. Hopefully this will be fixed by the time most folks get their cars.
View attachment 2683
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