50 KW CCS Charger

[Illinibird]

I'm planning a trip to meet with friends in Pontiac Illinois along I-55 for lunch. Right off I-55 at the Pontiac exit there is a non-network charge point called Wally's which has a 50 KW CCS charger. I'm a newbie when it comes to charging (or anything for that matter as I've never had a BEV) and I remember people on this board saying to look for a 150 kw CCS DC charger. There isn't one available so how long will it take for the DC 50 KW CCS charger to bring my MME up to 80% SOC roughly? (Planner says I'll arrive at 67% SOC) I have to figure in time to charge and I want to do it before we meet them for lunch. A Better Route Planner says it is 74 miles one way so theoretically I should make the round trip on 100% charge from my house and back but this will take place in July (I hope if I get my car by then) so I know we'll be using the A/C and we also will be driving around 70 MPH.

Can you tell I have range anxiety already! ?

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[ChasingCoral]

I'm planning a trip to meet with friends in Pontiac Illinois along I-55 for lunch. Right off I-55 at the Pontiac exit there is a non-network charge point called Wally's which has a 50 KW CCS charger. I'm a newbie when it comes to charging (or anything for that matter as I've never had a BEV) and I remember people on this board saying to look for a 150 kw CCS DC charger. There isn't one available so how long will it take for the DC 50 KW CCS charger to bring my MME up to 80% SOC roughly? (Planner says I'll arrive at 67% SOC) I have to figure in time to charge and I want to do it before we meet them for lunch. A Better Route Planner says it is 74 miles one way so theoretically I should make the round trip on 100% charge from my house and back but this will take place in July (I hope if I get my car by then) so I know we'll be using the A/C and we also will be driving around 70 MPH.

Can you tell I have range anxiety already! ?

1. a 50kW charger will take 2-3 times as long as a 150kW or higher charger, depending on what the actual charging curve on the 50kW looks like. I haven't seen data on this.
2. If it is only 74 miles one way, you shouldn't need to charge.
3. If you do need to charge, why not do it on the way back when you aren't under the same time constraints?

 

[benk016]

I've seen a few chargers that show up on various apps as 50kw, but when I get there they are higher.

There was an EA station near me that had one of the towers listed as 50kw, when it was actually 150kw. Best part was that it only charged the 50kw price, but still charged at 150kw. Unfortunately they updated it in the system not too long later.

 

[ChasingCoral]

I've seen a few chargers that show up on various apps as 50kw, but when I get there they are higher.

There was an EA station near me that had one of the towers listed as 50kw, when it was actually 150kw. Best part was that it only charged the 50kw price, but still charged at 150kw. Unfortunately they updated it in the system not too long later.

True. The flip side to this was a 128kW ChargePoint that never went over 67kW despite the fact that I was the only one on either of the two chargers.

 

[Illinibird]

1. a 50kW charger will take 2-3 times as long as a 150kW or higher charger, depending on what the actual charging curve on the 50kW looks like. I haven't seen data on this.
2. If it is only 74 miles one way, you shouldn't need to charge.
3. If you do need to charge, why not do it on the way back when you aren't under the same time constraints?

Good points. I know I probably should make it on one charge I'm just preplanning everything way early but I want this to go smoothly. He'll have either his 2017 Z06 Corvette or his 2019 Cadillac CT6 so I'm sure he'll be comparing cars. He texted me that he's thinking of trying an electric car so I want to show off the MME in its best light. As far as your points go:
1. I've seen the "charge curve" and read about it on this forum but I do not know how to read one or interpret what it means. Is there a thread on this or a tutorial?
2. Yes its only 74 miles so theoretically I shouldn't have to charge but what about me running the A/C or traveling at 70 mph? Does this significantly impact the range?
3. This makes perfect sense and I will charge after lunch if I need to. Any demonstration of the car won't require a lot of miles.

Thank you for your reply.

 

[ChasingCoral]

Good points. I know I probably should make it on one charge I'm just preplanning everything way early but I want this to go smoothly. He'll have either his 2017 Z06 Corvette or his 2019 Cadillac CT6 so I'm sure he'll be comparing cars. He texted me that he's thinking of trying an electric car so I want to show off the MME in its best light. As far as your points go:
1. I've seen the "charge curve" and read about it on this forum but I do not know how to read one or interpret what it means. Is there a thread on this or a tutorial?

https://www.macheforum.com/site/threads/mme-charging-curve-data-collection.1617/

2. Yes its only 74 miles so theoretically I shouldn't have to charge but what about me running the A/C or traveling at 70 mph? Does this significantly impact the range?

Maybe 10%.

 

[benk016]

True. The flip side to this was a 128kW ChargePoint that never went over 67kW despite the fact that I was the only one on either of the two chargers.

I had this same problem as well. I think they advertise 125kw. But there was two stations and both of them said 67kw on the screen as the max speed. So its like they share the 125kw, but aren't configured to use it all if the other station is not in use.

 

[TheVirtualTim]

Your car can charge at "up to" 150 kW ... but only when the battery is drained more (say ... around 20-30%). As it starts to fill, the charging rate drops. This means for much of the charging session, a 150kW charger isn't actually delivering 150kW ... it maybe be delivering more like 120 or 100 or 80, etc. And since all of those rates are higher than 50kW my guess is that the 50kW charger will probably charge near it's 50kW limit (although that's also dependent on a lot of factors and I've noticed charge sessions start out slow and ramp up over the first few minutes of the charge).

SO.... at 67% and you want to go to 80% so you need to come up with 13% of 88kW (since you have an Extended Range battery).

88 x .13 = 11.44 kW ... about 1/4 of what a 50kW charger can deliver in an hour. You'll would "theoretically" be charging for about 15 minutes. My guess is since the charge sessions tend to start slowly and pick up kW ... maybe it will take 20 minutes to reach 80%.

You can easily make a 74 mile one-way trip on a 67% state of charge. So I wouldn't worry about it.

 

[Illinibird]

Your car can charge at "up to" 150 kW ... but only when the battery is drained more (say ... around 20-30%). As it starts to fill, the charging rate drops. This means for much of the charging session, a 150kW charger isn't actually delivering 150kW ... it maybe be delivering more like 120 or 100 or 80, etc. And since all of those rates are higher than 50kW my guess is that the 50kW charger will probably charge near it's 50kW limit (although that's also dependent on a lot of factors and I've noticed charge sessions start out slow and ramp up over the first few minutes of the charge).

SO.... at 67% and you want to go to 80% so you need to come up with 13% of 88kW (since you have an Extended Range battery).

88 x .13 = 11.44 kW ... about 1/4 of what a 50kW charger can deliver in an hour. You'll would "theoretically" be charging for about 15 minutes. My guess is since the charge sessions tend to start slowly and pick up kW ... maybe it will take 20 minutes to reach 80%.

You can easily make a 74 mile one-way trip on a 67% state of charge. So I wouldn't worry about it.

Thank you! I know I shouldn't be worrying but never having a BEV or charging it I'm nervous about it and want everything to go well that day. I'm going to practice on a charger around here when (and if) I ever get the car. The build week is scheduled now for 5/24 but who knows.

 

[DaMeatMan]

I'm planning a trip to meet with friends in Pontiac Illinois along I-55 for lunch. Right off I-55 at the Pontiac exit there is a non-network charge point called Wally's which has a 50 KW CCS charger. I'm a newbie when it comes to charging (or anything for that matter as I've never had a BEV) and I remember people on this board saying to look for a 150 kw CCS DC charger. There isn't one available so how long will it take for the DC 50 KW CCS charger to bring my MME up to 80% SOC roughly? (Planner says I'll arrive at 67% SOC) I have to figure in time to charge and I want to do it before we meet them for lunch. A Better Route Planner says it is 74 miles one way so theoretically I should make the round trip on 100% charge from my house and back but this will take place in July (I hope if I get my car by then) so I know we'll be using the A/C and we also will be driving around 70 MPH.

Can you tell I have range anxiety already! ?

I live in a condo and charge exclusively at a 50Kw charger 5 min from my place. I found that it takes about 1.5min per 1% of battery added when charging at around 42Kw. The Chargepoint charger is a 50Kw charger, but it never really hits 50kw and holds pretty steady at about 41 or 42kw.

Here's a screenshot of my last charge session where I charged from 61% to 80% which took 35min.

 

[Illinibird]

I live in a condo and charge exclusively at a 50Kw charger 5 min from my place. I found that it takes about 1.5min per 1% of battery added when charging at around 42Kw. The Chargepoint charger is a 50Kw charger, but it never really hits 50kw and holds pretty steady at about 41 or 42kw.

Here's a screenshot of my last charge session where I charged from 61% to 80% which took 35min.

Thank you

 

[ajmartineau]

Look them up on PlugShare. You can expect to charge at 30kW, but the place is clean. Also, they put a $25 hold on your CC just like a gas pump. We need more places like Wally's. I love the covered charging spaces.

 

[dbsb3233]

1. a 50kW charger will take 2-3 times as long as a 150kW or higher charger, depending on what the actual charging curve on the 50kW looks like. I haven't seen data on this

Probably closer to 2x longer than 3x, since the MME only stays near 150 for a very brief moment. While a 50 kW charger is likely to stay near 50 all the way to 80%.

 

[dbsb3233]

I live in a condo and charge exclusively at a 50Kw charger 5 min from my place. I found that it takes about 1.5min per 1% of battery added when charging at around 42Kw. The Chargepoint charger is a 50Kw charger, but it never really hits 50kw and holds pretty steady at about 41 or 42kw.

Here's a screenshot of my last charge session where I charged from 61% to 80% which took 35min.

35 minutes is long for that. 19% of 88 kWh is about 17 kWh. At 42 kW avg that should be 17 / 42 = 0.40 hours = 24 minutes.

35 minutes would be about 29 kW avg.

 

[Mirak]

I’ll be interested to know if this charger works for you. I went to two ChargePoint 50kW chargers this past weekend and neither worked for me.

The best part of taking the MME out on the road is it’s a total gamble, you never know what’s gonna happen! Will it work? Will it not? The suspense!

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