30 Amp panel R1S charges much slower than Tesla

[835Horses]

Hey guys. So my wife’s Model 3 charges at about 22 miles per hour. My ModelX used to charge at about 16-18 miles per hour. Same panel with Lectron adapter I get only 12 miles per hour of charging on my new R1S. Expected?

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[R.I.P.]

Hey guys. So my wife’s Model 3 charges at about 22 miles per hour. My ModelX used to charge at about 16-18 miles per hour. Same panel with Lectron adapter I get only 12 miles per hour of charging on my new R1S. Expected?

Your Tesla it twice as efficient, so it gets twice (ish) the "miles per hour" from the same amount of electricity.

So yup... that is expected.

 

[emoore]

Hey guys. So my wife’s Model 3 charges at about 22 miles per hour. My ModelX used to charge at about 16-18 miles per hour. Same panel with Lectron adapter I get only 12 miles per hour of charging on my new R1S. Expected?

Yep. It’s a less efficient truck.

 

[godfodder0901]

Hey guys. So my wife’s Model 3 charges at about 22 miles per hour. My ModelX used to charge at about 16-18 miles per hour. Same panel with Lectron adapter I get only 12 miles per hour of charging on my new R1S. Expected?

You are conflating miles of range with charge rate. All three vehicles likely charged at the same rate, but added differing amounts of range over the same time period.

If you went to the gas station and filled up your civic in 5 min (adding 300 miles) but the F-350 next to you only added a 1/4 tank (and 100 miles of range) in that same 5 min, you wouldn't say that the pump gave you more fuel, would you? The bigger vehicle, with a bigger tank, and lower efficiency, adds less range with the same amount of fuel.

 

[VSG]

"30 Amp panel R1S charges much slower than Tesla"

No, your 30A panel charges your R1S at EXACTLY THE SAME RATE as your Tesla.

Charging rate is measured in kW. Total energy added is the rate multiplied by the time, and is measured in kWh.

And just like gas vehicles, where every model has different mpg numbers, every EV gets a different number of miles per kWh.

Talking about charger performance in terms of "miles per hour" is just wrong because the charger doesn't know or care how your vehicle uses the energy - the charger is just delivering it.

 

[sub]

While I agree with the others that most likely you are just seeing what you should expect from a vehicle that is bigger and less efficient.

However I would double check that the charger was setup correctly. There is a setting on the charger that could be misconfigured and reduce the charge rate lower than it needs to be.

The best way to confirm is to look at the display when the vehicle is charging to see how many Amps it is pulling. It should be 80% of the number printed on the circuit breaker. So if your circuit breaker says 30A, then you would expect to see 30 * 0.8 = 24A on the car's display.

Or if that sounds complicated, just plug the Tesla in and see if it is charging at the same rate that it did on your old charger.

You definitely will see fewer "mile per hour" on a Rivian than on the Tesla when using the same charger since each unit of electricity pushes the Rivian fewer miles. But it is possible that a misconfigured charger is exaggerating the difference.

 

[Polar]

How do you fill your car with miles?

- look at it this way and it may make more sense

 

[SANZC02]

While I agree with the others that most likely you are just seeing what you should expect from a vehicle that is bigger and less efficient.

However I would double check that the charger was setup correctly. There is a setting on the charger that could be misconfigured and reduce the charge rate lower than it needs to be.

The best way to confirm is to look at the display when the vehicle is charging to see how many Amps it is pulling. It should be 80% of the number printed on the circuit breaker. So if your circuit breaker says 30A, then you would expect to see 30 * 0.8 = 24A on the car's display.

Or if that sounds complicated, just plug the Tesla in and see if it is charging at the same rate that it did on your old charger.

You definitely will see fewer "mile per hour" on a Rivian than on the Tesla when using the same charger since each unit of electricity pushes the Rivian fewer miles. But it is possible that a misconfigured charger is exaggerating the difference.

Checking the setup,is a good idea but based on the numbers they are providing it all sounds proper. A Model 3/Y gets close to 4 miles per kWh, a Model S/X close to 3 miles per kWh, and a Rivian close to 2 miles per kWh which is all in line with their observation.

 

[23R1TFGFE]

Put 10 gallons of gas into a Suburban, and 10 gallons into a Corolla. Both will accept the 10 gallons in the exact same amount of time (aka “charge rate”) but the Corolla will go twice as far on that volume of fuel (mi/gal). It’s not that the Corolla fuels up faster, it’s just more efficient. Same same for the RIVIAN v Model 3 comparison.

 

[835Horses]

While I agree with the others that most likely you are just seeing what you should expect from a vehicle that is bigger and less efficient.

However I would double check that the charger was setup correctly. There is a setting on the charger that could be misconfigured and reduce the charge rate lower than it needs to be.

The best way to confirm is to look at the display when the vehicle is charging to see how many Amps it is pulling. It should be 80% of the number printed on the circuit breaker. So if your circuit breaker says 30A, then you would expect to see 30 * 0.8 = 24A on the car's display.

Or if that sounds complicated, just plug the Tesla in and see if it is charging at the same rate that it did on your old charger.

You definitely will see fewer "mile per hour" on a Rivian than on the Tesla when using the same charger since each unit of electricity pushes the Rivian fewer miles. But it is possible that a misconfigured charger is exaggerating the difference.

Thanks yes it does say 24 amp.

 

[835Horses]

Checking the setup,is a good idea but based on the numbers they are providing it all sounds proper. A Model 3/Y gets close to 4 miles per kWh, a Model S/X close to 3 miles per kWh, and a Rivian close to 2 miles per kWh which is all in line with their observation.

Thanks this computes

 

[Electrified Outdoors]

The model 3 at best has an 80 kwh battery, the X at best has a 100 kwh battery, and the R1S has between 131 kwh (large pack) and 142 kwh (max pack). It will take significantly longer to replenish a larger battery.

 

[azbill]

How do you fill your car with miles?

- look at it this way and it may make more sense

Toyota has been promoting there new batteries in terms of miles. Maybe that is the newest math.

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