HELP Charging with generator

[Hyfly]

Any help is appreciated. Cannot figure out how to get it to charge.
spoiler I’m not electrician and have little knowledge on the topic.
heres what I have and tried.

Generator - https://www.costco.com/a-ipower-gxs...el-inverter-generator.product.4000078099.html

Adapter - https://a.co/d/3RTf9QQ

I fired up the generator, plugged in adapter and then used the rivian charge cable. Switched the generator switch to the 240 option
Rivian charger went red and never worked. (Images attached showing setup)
Any ideas on what else could be needed.

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[Christopher]

I think you need to plug this in so the charger sees a bonded neutral to ground: https://www.amazon.com/Southwire-Company-LLC-44400-Generator/dp/B07F4R7BDL/ref=mp_s_a_1_3?crid=XH3IPE6J18S3&keywords=generator+ground&qid=1686804369&sprefix=generator+ground+,aps,118&sr=8-3

 

[Hyfly]

I think you need to plug this in so the charger sees a bonded neutral to ground: https://www.amazon.com/Southwire-Company-LLC-44400-Generator/dp/B07F4R7BDL/ref=mp_s_a_1_3?crid=XH3IPE6J18S3&keywords=generator+ground&qid=1686804369&sprefix=generator+ground+,aps,118&sr=8-3

Where does that plug into? I’m not even using the 110 plug.

 

[HighVoltOverland]

Have you tried to charge at 120 yet?

Might want to troubleshoot the individual legs before you go adding additional adapters

 

[Hyfly]

Have you tried to charge at 120 yet?

Might want to troubleshoot the individual legs before you go adding additional adapters

No I haven’t. I’ll give that a try tomorrow and see if it does anything.
I didn’t even think to because I want the most juice possible so the 120 serves me no purpose which is why I didn’t try it.

 

[Christopher]

Where does that plug into? I’m not even using the 110 plug.

It plugs into any 120 plug and should bond the neutral to ground on both 120 and 240v so the EVSE will not throw the fault with red light. You can read the review, photos, and videos on that Amazon listing to see many others using it to charge their EV from a generator.

 

[HighVoltOverland]

No I haven’t. I’ll give that a try tomorrow and see if it does anything.
I didn’t even think to because I want the most juice possible so the 120 serves me no purpose which is why I didn’t try it.

Understood.

Just trying to offer the basic troubleshooting advice
Checking and verifying if both 120v plugs work (or don't) may be a good indicator if the split phase / adapter is the issue

Likewise, may be good to double check that your Rivian plug works on known working circuits, to ensure it isn't a manufacture defect on the Rivian side

Some generators also have swapped hot and nuetral legs, which isn't the greatest

 

[HighVoltOverland]

It plugs into any 120 plug and will bond the neutral to ground on both 120 and 240v so the EVSE will not throw the fault with red light. You can read the review, photos, and videos on that Amazon listing to see many others using it to charge their EV from a generator.

To echo this, ground bond plug is likely the solution

read the reviews, many folks stating they needed it to charge an EV from generator, both 120 and 240

 

[Christopher]

I believe there are also l14-30p to 14-50r adapters specifically made for EV chargers that have the ground to neutral bond inline. You can also check the owners manual of the generator to see that it has a floating neutral and may have instructions for how to bond it with a jumper.

 

[ironpig]

You might want to try one of the AC Works adapters - that's what I used to make it work.

https://www.amazon.com/dp/B07579DBXP?ref_=cm_sw_r_apan_dp_HAFEXZDBKNDG0KKFHSRK

I think it was this one.

 

[sd250]

Another thing to check how many amps your truck is set to charge at. On the charging screen, I'd turn it down to around 20amps for this generator.

 

[Dark-Fx]

I think you need to plug this in so the charger sees a bonded neutral to ground: https://www.amazon.com/Southwire-Company-LLC-44400-Generator/dp/B07F4R7BDL/ref=mp_s_a_1_3?crid=XH3IPE6J18S3&keywords=generator+ground&qid=1686804369&sprefix=generator+ground+,aps,118&sr=8-3

Doubling the suggestion. The EVSE is faulting out because the ground is floating. Bond it to neutral with one of the 120V plugs. No current goes over it, it's just comparing voltage. Neutral and ground are the same for every plug.

I have to use one of these on my generator and it works fine.

 

[Hyfly]

Awesome everyone! Really thanks for the input. I’ve ordered that plug and will also test the other methods.
fingers crossed it solves it.
much thanks again!!

 

[joelster]

It'll solve it. I made one for my setup. Works like a charm.

 

[HighVoltOverland]

Hey man, following up, if you are wary of ground bonding here is a much more specific product made for your exact use case.

4 Prong Generator Twist Lock 20A Plug to EV 50A Receptacle

My understanding is the main error comes from the way the plugs are pinned out, and how regular generator pin out is different from the typical rv/ev need

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