350KW Charging that has Worked Everytime vs. Shell Recharge 50kw (60% success rate with Shell)

[MNLightning]

Thursday after finding my regular 50kw Shell Recharge station wasn't working. Shell reset it 3 times and still no luck so I headed to the fastest chargers within 30 miles at a Walmart. I was pretty happy with the charge rate. It took just over an hour to go from 10% to 93%. For a while the charge rate was adding over 500 mph.

Fast forward to today and I tried 3- 50Kw chargers 2 at Goodwills and what was my regular charger in Hopkins that either failed or crapped out. My 1st attempt charged me at 125 mph for just 30 minutes and stopped. The Shell rep said the chip in the handle was on a work order and should be repaired in about 2 weeks.

I'm going to have to move up my scheduled installation of my 11.5Kw home charger as without 50Kw charging available I can't really use the truck. I've been using the 120v 2mph home charger overnight when needed. Currently I'm down to 60 miles of range so the truck will have to sit tomorrow or until I get the 11.5Kw charger fired up.

Does anyone have experience with a 11.5kw charger? I'm just wondering what I can expect in terms of a charge rate. Hoping for 30mph

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[jjwolf120]

Hoping for 30mph

The advertised speed is up to 25 miles per hour.

 

[CommodoreAmiga]

Does anyone have experience with a 11.5kw charger? I'm just wondering what I can expect in terms of a charge rate. Hoping for 30mph

30mph isn’t possible. Rivian advertises 25mph — it’s possible, but most won’t get it; 23mph is a more reasonable expectation.

 

[AdamsFan1983]

Thursday after finding my regular 50kw Shell Recharge station wasn't working. Shell reset it 3 times and still no luck so I headed to the fastest chargers within 30 miles at a Walmart. I was pretty happy with the charge rate. It took just over an hour to go from 10% to 93%. For a while the charge rate was adding over 500 mph.

Fast forward to today and I tried 3- 50Kw chargers 2 at Goodwills and what was my regular charger in Hopkins that either failed or crapped out. My 1st attempt charged me at 125 mph for just 30 minutes and stopped. The Shell rep said the chip in the handle was on a work order and should be repaired in about 2 weeks.

I'm going to have to move up my scheduled installation of my 11.5Kw home charger as without 50Kw charging available I can't really use the truck. I've been using the 120v 2mph home charger overnight when needed. Currently I'm down to 60 miles of range so the truck will have to sit tomorrow or until I get the 11.5Kw charger fired up.

Does anyone have experience with a 11.5kw charger? I'm just wondering what I can expect in terms of a charge rate. Hoping for 30mph

Phew. I’m just glad Goodwill installed chargers for all their customers that drive $80,000 trucks….

 

[Craigins]

Please try to use kwh (or at least %) when attempting to compare numbers.

Miles is a meaningless statistics when trying to compare with other people or when telling other people how fast you are charging.

 

[PoorPilot]

Please try to use kwh (or at least %) when attempting to compare numbers.

Miles is a meaningless statistics when trying to compare with other people or when telling other people how fast you are charging.

I wouldn’t necessarily call it meaningless. There are individuals from each end of the spectrum and everywhere in between, so stating miles per hour of charge is a good starting point. If individuals want or need specific kWh, then they can either ask or do a rough conversion.

 

[Hopper]

30mph isn’t possible. Rivian advertises 25mph — it’s possible, but most won’t get it; 23mph is a more reasonable expectation.

I have a hardwired Rivian charger on a 60 amp circuit. I get 21.2.

 

[Craigins]

I wouldn’t necessarily call it meaningless. There are individuals from each end of the spectrum and everywhere in between, so stating miles per hour of charge is a good starting point. If individuals want or need specific kWh, then they can either ask or do a rough conversion.

So if i drive with a lead foot and get 270 miles / 100%, and you drive with a feather foot and get 315 miles / 100%, how do I compare your charge rate in miles per hour?

 

[Kunzene]

I have a hardwired Rivian charger on a 60 amp circuit. I get 21.2.

I’m using a Tesla wall connector on 60 amp circuit with a Tesla Tap and getting the same

 

[moondog417]

I know it will take time for understanding to be widespread, but just like the gas station charges by gallons not miles, electricity needs to be measured in kWh (analogous to gallons) and kW (gasoline flow rate). Just like a civic can go twice as far as an F150 on 10 gallons. My Leaf will go at least twice as far as an R1T on the same kWh. At the same charge rate (which is dependent on the particular L3 charger and the car battery state of charge - to add more variables), I add at least twice as many miles of range in a given time than an R1T.

OP: it’s ok to ask about miles added in a given time because it makes sense, but it is not so simple to give good answers in that metric.

 

[Greenwater]

I’m using a Tesla wall connector on 60 amp circuit with a Tesla Tap and getting the same

But what is the kw rating coming out?

Since rivian's onboard charger is max 48amps at 240v, if you had an 80 or 60 amp input through the evse going through the tesla tap, the most the rivian would take would still be 48 amps, right? So the question here is why was that not listed as 21.2 mph of charge vs 25?

 

[CommodoreAmiga]

But what is the kw rating coming out?

Since rivian's onboard charger is max 48amps at 240v, if you had an 80 or 60 amp input through the evse going through the tesla tap, the most the rivian would take would still be 48 amps, right? So the question here is why was that not listed as 21.2 mph of charge vs 25?

My guess is a either ”marketing rounding” or an absolute best-case theoretical scenario, including a “hot“ grid or someone getting better-than-EPA estimate.

Nominal grid w/EPA estimate:
240V @ 48A = 11,520Wh / 480 W/mi = 24 mi/hr

Hot grid w/EPA estimate:
250V @ 48A = 12,000Wh / 480 W/mi = 25 mi/hr

Nominal grid w/Hyper-miler efficiency:
240V @ 48A = 11,520Wh / 460 W/mi = 25 mi/hr

IMO, I think it would be most fair to just advertise the EPA number on a “nominal” outlet. 24 mi/hr is not appreciably different than 25…. But I guess that round number may be more desirable, to some?

 

[Kunzene]

But what is the kw rating coming out?

Since rivian's onboard charger is max 48amps at 240v, if you had an 80 or 60 amp input through the evse going through the tesla tap, the most the rivian would take would still be 48 amps, right? So the question here is why was that not listed as 21.2 mph of charge vs 25?

Both the Rivian app and the truck seem to push the “miles of charge per hour” metric more prominently than the kW rating. Mine shows 11 kW (no decimal places) while charging and bounces between 19.9-21.7 mph.
I too wonder if 25mph is an ideal/best case scenario.

 

[FrankieJ]

I know it will take time for understanding to be widespread, but just like the gas station charges by gallons not miles, electricity needs to be measured in kWh (analogous to gallons) and kW (gasoline flow rate). Just like a civic can go twice as far as an F150 on 10 gallons. My Leaf will go at least twice as far as an R1T on the same kWh. At the same charge rate (which is dependent on the particular L3 charger and the car battery state of charge - to add more variables), I add at least twice as many miles of range in a given time than an R1T.

OP: it’s ok to ask about miles added in a given time because it makes sense, but it is not so simple to give good answers in that metric.

This is a Rivian forum and so does it really matter that a Leaf can go twice as far on a charge than a Rivian? Give people a chance to adjust to the new measurement and everything will be fine.

 

[ajdelange]

Since rivian's onboard charger is max 48amps at 240v, if you had an 80 or 60 amp input through the evse going through the tesla tap, the most the rivian would take would still be 48 amps, right? So the question here is why was that not listed as 21.2 mph of charge vs 25?

Yes, the EVSE delivers 48*240 = 11,520W but the charger in the truck has about 10% loss so that only 10,368 goes to the battery. For 21.2 mph the corresponding consumption is about 490 Wh/mi which seems about right.

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