Charging at 28-29 mi/hr 11.6kw -- issue or glitch?

[ssbmx90]

Should I be concerned or a glitch? I have the Tesla wall charger with a lectron 48amp adapter at the moment. I charged a little to test out it earlier and it was the normal 24-25 mi/hr charge rate rivian is capable of. I’m pushing 29 right now allegedly.

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[CANCERDOC]

It is probably because you are in conserve mode. Remember you are putting in electricity not actual miles, so the efficiency of the vehicle matters.

 

[SPITmadFIRE]

It is probably because you are in conserve mode. Remember you are putting in electricity not actual miles, so the efficiency of the vehicle matters.

OP specifically stated they're charging at 11.6 kW, which has nothing to do with drive mode or efficiency. While the "miles per hour" number varies with efficiency and drive mode, the actual kilowatt charge rate does not.

@ssbmx90 assuming your charger's voltage is exactly 240V, that would mean it's charging at 48.33A -- multiplying the two together gets you 11.6 kW. That said, your charger could be operating at slightly above or below 240V which makes it difficult to figure out exactly what amperage you're currently charging at. The R1S and R1T max out at 48A on L2 charging, however, so I don't think you have anything to worry about here so long as your adapter is rated for a *sustained* 48A charge rate. Typically, for things like circuit breakers and conduit, it's advisable to never exceed 80% of the rated amperage for a sustained load like charging a vehicle for many hours.

Can you describe your wall charger setup? What's the rating of your breaker? If you're concerned about overloading your adapter, you can always turn down the amperage the vehicle will charge at over AC from the Energy app on the main display.

 

[Ghens]

Should I be concerned or a glitch? I have the Tesla wall charger with a lectron 48amp adapter at the moment. I charged a little to test out it earlier and it was the normal 24-25 mi/hr charge rate rivian is capable of. I’m pushing 29 right now allegedly.

Looks like you need to charge your phone too!

 

[freshpow]

OP specifically stated they're charging at 11.6 kW, which has nothing to do with drive mode or efficiency. While the "miles per hour" number varies with efficiency and drive mode, the actual kilowatt charge rate does not.

@ssbmx90 assuming your charger's voltage is exactly 240V, that would mean it's charging at 48.33A -- multiplying the two together gets you 11.6 kW. That said, your charger could be operating at slightly above or below 240V which makes it difficult to figure out exactly what amperage you're currently charging at. The R1S and R1T max out at 48A on L2 charging, however, so I don't think you have anything to worry about here so long as your adapter is rated for a *sustained* 48A charge rate. Typically, for things like circuit breakers and conduit, it's advisable to never exceed 80% of the rated amperage for a sustained load like charging a vehicle for many hours.

Can you describe your wall charger setup? What's the rating of your breaker? If you're concerned about overloading your adapter, you can always turn down the amperage the vehicle will charge at over AC from the Energy app on the main display.

Did you even look at the photo? It shows it’s charging at 11.1 kW. Agree with @CANCERDOC, the reason OP is seeing 29 mi/hr instead of the 24-25 from before (the question) is because the vehicle is in conserve mode.

 

[YouKnowWhatsUp]

Should I be concerned or a glitch? I have the Tesla wall charger with a lectron 48amp adapter at the moment. I charged a little to test out it earlier and it was the normal 24-25 mi/hr charge rate rivian is capable of. I’m pushing 29 right now allegedly.

My R1T charges at 28 on my Tesla charger. I think yours is fine. If you are concerned you can call Tesla. I had an issue with my charger once and they were actually helpful and sent me a replacement without question. Mine was over heating and shutting down.

 

[rivn_jeff]

I have the Tesla universal charger and see between 11.1-11.6 charging speed so it seems right. As stated by other replies, the drive mode drives the miles added or per hour.

 

[SPITmadFIRE]

Did you even look at the photo? It shows it’s charging at 11.1 kW. Agree with @CANCERDOC, the reason OP is seeing 29 mi/hr instead of the 24-25 from before (the question) is because the vehicle is in conserve mode.

I don't know why you need to be condescending; yes I saw the photo. Did you even see the title of the thread you're posting in? The one where 11.6 kW is explicitly mentioned? The question "should I be concerned or a glitch?" was fairly ambiguous, but the only reason one would be concerned about charging too fast is if they blow a breaker or melt an adapter ?

 

[freshpow]

I don't know why you need to be condescending; yes I saw the photo. Did you even see the title of the thread you're posting in? The one where 11.6 kW is explicitly mentioned? The question "should I be concerned or a glitch?" was fairly ambiguous, but the only reason one would be concerned about charging too fast is if they blow a breaker or melt an adapter ?

Wasn’t trying to be condescending, but now I will be OP’s question wasn’t ambiguous - he was asking if he should be concerned about seeing 29 mi/hr. His question was answered succinctly and correctly and then you quoted that answer with a “condescending” reply of your own, saying it has nothing to do with drive mode when in fact it has everything to do with it.

 

[ssbmx90]

Thanks all. I’ll turn down the amps a bit for this adapter for long hour charging until the Tesla universal gets here so I can switch out this standard Tesla wall charger.

fyi: The Tesla app is where I saw the 11.6, I forgot to screenshot it.

 

[jjswan33]

Thanks all. I’ll turn down the amps a bit for this adapter for long hour charging until the Tesla universal gets here so I can switch out this standard Tesla wall charger.

Your adapter is 48A and your truck can take 48A. So no reason to turn down the amps, you are getting peak R1 charging speed, enjoy.

 

[SPITmadFIRE]

Wasn’t trying to be condescending, but now I will be OP’s question wasn’t ambiguous - he was asking if he should be concerned about seeing 29 mi/hr. His question was answered succinctly and correctly and then you quoted that answer with a “condescending” reply of your own, saying it has nothing to do with drive mode when in fact it has everything to do with it.

Just to let you know, your first post was condescending but this one isn't. None of my replies until now have been condescending. My reply right now is condescending because I'm implying you don't know what the word condescending means. Hope that helps!

Thanks all. I’ll turn down the amps a bit for this adapter for long hour charging until the Tesla universal gets here so I can switch out this standard Tesla wall charger.

fyi: The Tesla app is where I saw the 11.6, I forgot to screenshot it.

There's no need to turn anything down, unless the breaker on your charger's circuit isn't rated high enough for 48A of sustained draw. You need a 60A breaker to safely sustain that charge rate. As far as I can tell, your Lectron adapter can sustain up to 48A as advertised.

As others have said, if you're confused about the difference in "miles per hour" charging rates, there's nothing to be worried about there. Most EV owners will talk about charge rates in units of power instead of range per hour because of all the different variables that go into estimating "miles per hour".

 

[electruck]

fyi: The Tesla app is where I saw the 11.6, I forgot to screenshot it.

The Tesla app is reporting the output of the EVSE. The Rivian app is reporting what's going into the battery. The difference between the two are your charging losses (ie, energy lost as heat) and is within expected limits. You have nothing to be concerned about here.

If it makes you feel better, my ChargePoint also reports 11.6 kW when the vehicle reports 11.1 kW. Charge rates will also vary a little within a charging session due to supply voltage fluctuations and may vary a lot as the BMS manages thermals. Last night, for example, my R1S dropped from 48A down to 32A (11.6 kW to 7.7 kW) after about 3 hours of charging or when it reached approx 45% soc.

 

[Grabs10]

Don’t turn down the amps unless you don’t have the right breaker and wiring to your charger to handle the load. It is charging like it should.

You probably have low electric useage in the house at this point and have just above 240 volts coming into the charger which is acceptable . Likely around 242 volts or so coming into your Tesla charger.

 

[ssbmx90]

Nice. Thanks all. Very informative

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