How many amps should I set R1S for household 110v outlet?

[AspenDriver]

Customer support couldn’t answer my question, so I’m hoping somewhere here can:

How many amps do I set the charge for when plugged into a 110v outlet? (2026 R1S)

I’m out of town and am plugged into an exterior 110v outlet at a friend’s house. This is the first time I’m using the Rivian adapter with a 110v outlet. I set the amps to 8 and my 2026 R1S is getting less than 1 kWh

Can I turn the car to Camp mode and turn off display, etc to get the most out of the trickle charge?
Can I boost amps to 10 without blowing a fuse/tripping a breaker?

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[DuoRivians]

Up to 12 amps should be fine

 

[AspenDriver]

Up to 12 amps should be fine

Has this been your own experience? Your best guess? Your suggestion as an electrician/technician? …You maybe can understand that I want to be safe!

 

[DuoRivians]

Has this been your own experience? Your best guess? Your suggestion as an electrician/technician? …You maybe can understand that I want to be safe!

Take 80% of the breaker amp, which is 15amps on a standard 110/120V

 

[Zoidz]

It's in the manual. It will draw 12A max on a 120 volt circuit. As long as you are plugged directly into the outlet, or using a not too long 14 gauge extension cord, you don't have to set the Rivian to anything. It can't draw more current than the charger permits. If for some reason you used a 100 foot 16 gauge extension cord, you should drop it back a bit. But at 120 volts, you want to be charging at 12A, so don't do that.

 

[AspenDriver]

It's in the manual. It will draw 12A max on a 120 volt circuit. As long as you are plugged directly into the outlet, or using a not too long 14 gauge extension cord, you don't have to set the Rivian to anything. It can't draw more current than the charger permits. If for some reason you used a 100 foot 16 gauge extension cord, you should drop it back a bit. But at 120 volts, you want to be charging at 12A, so don't do that.

I had looked through the manual and only saw *how* to set the amps, not *what level* to set the amps, so thanks so much!! What section is this chart in, or what page number?

 

[Killer95Stang]

On a 120V, you do not have to change anything. It will automatically charge at 12amps.

 

[tbinmd]

a modern house has 15amp breakers for outlets. What does your house have, check your panel. have screw in fuses? then you have a problem. 120V will be 12 amps draw on a 15 amp circuit.

 

[Dave Cundiff]

One thing not yet mentioned: What else is plugged into that circuit?

I'm not an electrician, but this reflects what I understand from many electrician, engineering, and safety sources:

Sustained drain on any electrical circuit, from all sources, should not exceed 80% of the circuit's rated current load. That would be 12 amps on a standard 15-amp circuit, assuming the circuit was properly installed and has been properly maintained.

Some 110-volt circuits are rated for more than 15 amps, but I don't think Rivian's 110-volt mobile charger will accept more than 12 amps.

@DuoRivians' and @Zoidz' advice about 12 amps probably depends on either not having anything else plugged into that circuit, or having a higher-rated circuit than 15 amps.

If there's anything else plugged into that circuit, @AspenDriver, either do the math or unplug the other thing(s) before you charge at all.

Best wishes!

 

[tbinmd]

this will explain things.

 

[Dark-Fx]

It's in the manual. It will draw 12A max on a 120 volt circuit. As long as you are plugged directly into the outlet, or using a not too long 14 gauge extension cord, you don't have to set the Rivian to anything. It can't draw more current than the charger permits. If for some reason you used a 100 foot 16 gauge extension cord, you should drop it back a bit. But at 120 volts, you want to be charging at 12A, so don't do that.

It'll draw up to whatever is advertised by the EVSE, including 48A on a 120V circuit if that's the current the EVSE is advertising.

A standard portable to plug into a standard wall outlet will almost never advertise above 12A. But if you are doing something funny with adapters, some dual-level cords end up advertising their L2 current rating on a 120V plug.

You should never set the car to allow more than 12A if you have it plugged into a standard 15A outlet, regardless of what the vehicle will let you.

 

[AspenDriver]

1. No one has answered my follow-up question yet: on what page, or in what section, is the chart that was posted by @Zoidz Once someone points me to the page/section, I’ll screenshot it so I’ll have easier access to it. TIA

2. I found the house’s circuit breakers (again, it’s not my house). The outdoor outlet isn’t labeled but since the wall it’s on backs up against the kitchen, I appreciate the advice to unplug/turn off other things there!

3. I truly appreciate all the replies— far more helpful than Customer “Support” in this case

 

[VandalSibs]

It'll draw up to whatever is advertised by the EVSE, including 48A on a 120V circuit if that's the current the EVSE is advertising.

A standard portable to plug into a standard wall outlet will almost never advertise above 12A. But if you are doing something funny with adapters, some dual-level cords end up advertising their L2 current rating on a 120V plug.

You should never set the car to allow more than 12A if you have it plugged into a standard 15A outlet, regardless of what the vehicle will let you.

They are using the Rivian portable charger, which will not draw more than 12A when using the 120v pigtail/plug in a standard 15a outlet (which is what the OP mentioned)

1. No one has answered my follow-up question yet: on what page, or in what section, is the chart that was posted by @Zoidz Once someone points me to the page/section, I’ll screenshot it so I’ll have easier access to it. TIA

2. I found the house’s circuit breakers (again, it’s not my house). The outdoor outlet isn’t labeled but since the wall it’s on backs up against the kitchen, I appreciate the advice to unplug/turn off other things there!

3. I truly appreciate all the replies— far more helpful than Customer “Support” in this case

1. It's in the manual for the portable charger, not the vehicle itself - not sure if Zoidz mentioned that or not.

2. Never a bad idea to do what you did when using a non-dedicated circut

3. The initial Customer Support (either phone or web chat) is gonna be pretty limited in the kind of answers they give you here, as they have no idea how the circuit you're using is set up, and from a liablility standpoint most likely won't advise you what to set it to.

 

[Dark-Fx]

They are using the Rivian portable charger, which will not draw more than 12A when using the 120v pigtail/plug in a standard 15a outlet (which is what the OP mentioned)

It'll actually still allow/advertise 32A of draw on 120V if the 14-50 pigtail is used, with a 3rd party adapter to make it work on a different outlet type. They don't explicitly mention which pigtail is being used the way I read it.

 

[AspenDriver]

They are using the Rivian portable charger, which will not draw more than 12A when using the 120v pigtail/plug in a standard 15a outlet (which is what the OP mentioned)



1. It's in the manual for the portable charger, not the vehicle itself - not sure if Zoidz mentioned that or not.

2. Never a bad idea to do what you did when using a non-dedicated circut

3. The initial Customer Support (either phone or web chat) is gonna be pretty limited in the kind of answers they give you here, as they have no idea how the circuit you're using is set up, and from a liablility standpoint most likely won't advise you what to set it to.

Oh!! It never occurred to me that the Rivian *charger* itself has a manual! Having had an EV before, I simply pulled out the cable and the adapter I needed. Many thanks for your clarification!

(and yes about upping the charge at a NEMA 14-50: We had one at our previous house)

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