RV adapter

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Kona&Prius said:
Thank you KiwiMe and Fastnf for the swift responses. Most appreciated.
It's good to be reassured that the granny cable will limit the current flow. I do understand that using the 240V adapter will put the EVSE at risk. We have two as it happens because I have a Prius Prime and have used that one to charge the Kona also but at 120V.

The Beswelgo portable looks interesting as it would solve the problem nicely, but then, knowing me, I'd want to use it at home and although I have a distribution panel in my garage it's wired as two 20A circuits from the main panel and so won't accommodate a 50A breaker to run the 14-50.

We could go with the low cost option and just buy the adapter (thank you for that link too) and I suspect that will be the final solution since my wife has free high speed charging at her regular job and I can get by most days on 26 or so miles I can get from an overnight charge for the Prius.

Thanks again for knowledgeable the help.
Click to expand...

Another option would to put a NEMA 6-20 volt plug (240 volt 20 amp ) in your garage then get a 16 amp EVSE with a NEMA 6-20 plug and then get a 14-50p to 6-20r adapter for the work plug. This would allow you quicker charging both at home and at work.

Here example links below.

https://www.amazon.com/Beswelgo-Portable-Charger-Electric-Charging/dp/B08HSDPJ8N/ref=sr_1_16?dchild=1&keywords=16+amp+evse+14-50&qid=1614528547&sr=8-16&th=1

https://www.amazon.com/NA-XUANHUA-W...cphy=9013163&hvtargid=pla-1123944615355&psc=1
 
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Quick update, I could not find a commercial adapter (but see below) that works for a 5-15r socket adapter to a 14-50 plug. I suspect it's because that is contrary to the plug/outlet standards. The doubler techniques I have seen which have been shown to work use a 5-20r receptacle into which the granny cable with its 5-15 plug is inserted are wired on the other end to two 5-15 plugs for insertion into L1 and L2 circuits to pull both phases and thus achieve the 240V required to increase the wattage.

So it seems to me that the only solution for an adapter is to make one where the two hot wires in the 14-50 are wired one to the "black" small pin and the other to the "white" larger pin of a 5-15 receptacle.

Did I miss something?
Thanks

PS Rophor has an RV cable that provides 4 5-20r receptacles and appears to have them on two separate phases so notionally that cable with a doubler usable at home for tapping into the two phases using standard 5-15 plugs would work in combination but it still ends up being a home grown solution unless I buy the two things below.

https://www.amazon.com/Rophor-Adapt...a+5-20+receptacle&qid=1614529305&sr=8-19&th=1

PPS - came across this as I was fact checking what I was writing.
https://drive.google.com/file/d/1kPwGi0iJvyWead8D6GOgTCRPZ0MOk3Os/view
Note: this page has an adapter that appears to be what I was searching for but at $99.95 seems inordinately expensive
 
Kona&Prius said:
Quick update, I could not find a commercial adapter (but see below) that works for a 5-15r socket adapter to a 14-50 plug. I suspect it's because that is contrary to the plug/outlet standards. The doubler techniques I have seen which have been shown to work use a 5-20r receptacle into which the granny cable with its 5-15 plug is inserted are wired on the other end to two 5-15 plugs for insertion into L1 and L2 circuits to pull both phases and thus achieve the 240V required to increase the wattage.

So it seems to me that the only solution for an adapter is to make one where the two hot wires in the 14-50 are wired one to the "black" small pin and the other to the "white" larger pin of a 5-15 receptacle.

Did I miss something?
Thanks

PS Rophor has an RV cable that provides 4 5-20r receptacles and appears to have them on two separate phases so notionally that cable with a doubler usable at home for tapping into the two phases using standard 5-15 plugs would work in combination but it still ends up being a home grown solution unless I buy the two things below.

https://www.amazon.com/Rophor-Adapter-14-50P-Household-Protection/dp/B08NXHHCKG/ref=sr_1_19?dchild=1&keywords=nema+5-20+receptacle&qid=1614529305&sr=8-19&th=1

PPS - came across this as I was fact checking what I was writing.
https://drive.google.com/file/d/1kPwGi0iJvyWead8D6GOgTCRPZ0MOk3Os/view
Note: this page has an adapter that appears to be what I was searching for but at $99.95 seems inordinately expensive
Click to expand...

If your making your own adapter your wiring is correct as sated. On the 5-20 side one hot to black one hot to white and ground to ground on the 14-50 side black to x pin white to y pin (or vise versa doesn't matter) nothing to neutral pin and ground to ground pin


You could also just change the plug on one of you granny chargers and make it a dedicated 14-50p or 6-20p. Then you could use that on any 240 volt out let. If you use the 6-20 plug then you could use it with the 14-50p to 6-20r adapter. That is probably you cheapest and simplest rout.

https://www.amazon.com/Sintron-Straight-Rewirable-Suitability-Industrial/dp/B08DR7JN7S/ref=sr_1_12?crid=3I4056171HMJL&dchild=1&keywords=14-50+plug&qid=1614532811&sprefix=14-50+,aps,1110&sr=8-12

https://www.amazon.com/Leviton-620P...ld=1&keywords=6-20+plug&qid=1614532873&sr=8-5
 
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Ah.. Whole new learning curve, making sure when I take off the old 5-15 plug and replace it with the 6-20 I get the wiring correct as inputs to the EVSE :) (My gut says it should be easy... transfer the ground to ground and after that it doesn't matter?)

It does have appeal. I need to double check that my Prime EVSE is rated for the 240V doubler option because that would most likely be the one I would replug.

Thanks for the suggestion.
And thank you for all of the quick and very helpful replies. It's great to find a forum where folk are so responsive. You have helped me immensely today.
Thank you, Thank you.
 
Kona&Prius said:
Ah.. Whole new learning curve, making sure when I take off the old 5-15 plug and replace it with the 6-20 I get the wiring correct as inputs to the EVSE :) (My gut says it should be easy... transfer the ground to ground and after that it doesn't matter?)

It does have appeal. I need to double check that my Prime EVSE is rated for the 240V doubler option because that would most likely be the one I would replug.

Thanks for the suggestion.
And thank you for all of the quick and very helpful replies. It's great to find a forum where folk are so responsive. You have helped me immensely today.
Thank you, Thank you.
Click to expand...

Wiring for changing plug on 240 volt comparable EVSE for a 6-20 plug is black to one hot pin, white to other hot pin and ground to ground
 
Hey folks,

Sorry to revive this dormant thread but it came up in The Google so I thought it best.

I'm looking at this 'RVGuard' Welder Adapter Cord to use as an adapter to a 14-50 plug from the Kona's stock L1 charger.
https://www.amazon.ca/RVGUARD-Welder-Adapter-14-50P-Welding/dp/B088D8WGSN/ref=sr_1_8?crid=25MCGBCTUJC2O&keywords=14-50+adapter&qid=1649181162&sprefix=14-50+adapter,aps,190&sr=8-8&th=1

Thoughts? Seems to be the most affordable option to get the 240V speed from the supplied equipment at the RV park for our summer road trip!
Thanks!
Chris
Screen Shot 2022-04-05 at 10.58.11.webp
 
Chris Alemany said:
Hey folks,

Sorry to revive this dormant thread but it came up in The Google so I thought it best.

I'm looking at this 'RVGuard' Welder Adapter Cord to use as an adapter to a 14-50 plug from the Kona's stock L1 charger.
https://www.amazon.ca/RVGUARD-Welder-Adapter-14-50P-Welding/dp/B088D8WGSN/ref=sr_1_8?crid=25MCGBCTUJC2O&keywords=14-50+adapter&qid=1649181162&sprefix=14-50+adapter,aps,190&sr=8-8&th=1

Thoughts? Seems to be the most affordable option to get the 240V speed from the supplied equipment at the RV park for our summer road trip!
Thanks!
Chris
View attachment 15940
Click to expand...

While the NEMA 6-50 looks similar to a NEMA 5-15 plug it is about twice the size so no you can't plug your level one into this adapter. So no it won't work. If you read this and other older threads on adapters you will find the information you are looking for on the proper set up of such an adapter.
 
Fastnf said:
While the NEMA 6-50 looks similar to a NEMA 5-15 plug it is about twice the size so no you can't plug your level one into this adapter. So no it won't work. If you read this and other older threads on adapters you will find the information you are looking for on the proper set up of such an adapter.
Click to expand...

AH! See, this is why I go here. Thank you!
 
The EV Doctor makes a EV doubler adapter that accomplishes what your looking to do. Note this adapter is only for EVSE level one charger and will not work with and will do damage to any other 120 volt device. It is not uL listed. They want $90 for it. The one that would work on your plugs would be the 1450p to 6-20R. This is not a recommendation. I am just letting you know that such products are available.

https://evdoctor4earth1.weebly.com/
 
8C1FDE7E-9142-48AA-9398-EAC8E9508A4E.webp
R P said:
Great news!! I rigged up a dog bone RV adapter and today tested it with my Morec EVSE. And it works!! Below is a description of the parts I used to put it together, and details of the tests I performed.

First I have to thank Fastnf, as I was about to give up on this idea until I saw his post. I learned a lot from his description and pics, and wired mine up the same way. Also thanks to Bugblndr who confirmed for me that the Morec and SimplyWork EVSE's are essentially the same product. I suspect a lot of these similar looking Chinese products are the same, just different brands/sellers and all work at 110 - 240V.

Also found this website that describes how to build an RV adapter (same as what Fastnf described).
http://carcharging.us/adapt/home-made-adapters.php

And here are the parts I bought to put together my adapter. Turned out to be a lot cheaper than buying the Tesla adapter, and a better final product, too, with the dog bone.
https://www.amazon.com/gp/product/B07HF179N7?ref=ppx_pt2_dt_b_prod_image
https://www.amazon.com/gp/product/B07GRTNM2F?ref=em_1p_7_ti&ref_=pe_27542510_431345250
Here's a pic of the final product.
View attachment 6274

Did 3 tests, Minimum, Reduced (middle setting) and Maximum on the car settings.
Minimum: EVSE displayed 19.1A/113.1V and car charged at 2.2 kW.
Reduced: EVSE 28.1A/112.2V and car at 3.3 kW.
Maximum: EVSE 30.9A/111.9V and car at 3.7 kW.

First test at lowest L2 car setting.
View attachment 6275
View attachment 6276

2nd test at middle setting.
View attachment 6277
View attachment 6278

Final test at full maximum car setting.
View attachment 6279
View attachment 6280
Click to expand...


Hello RP, which Morec is this? I only see 240v input specs on their 32w and 40amp units. I can’t seem to find a manual

is it this one?

Morec 32 Amp EV Charger Level 2, NEMA14-50 26ft 240V Upgraded Portable EV Charging Cable Station, Electric Vehicle Charger Compatible with All EV Cars https://a.co/d/gcVz28f




How do you change the amp settings on the evse?

thanks
 
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I have that Morec, except mine has the 26' cable. My son recently bought the same one (20' cable) for his Tesla. His OEM one started to fail (overheating), so now he also uses the Morec and works great for him.

The charge rate is adjusted at the car, not the EVSE, which can charge to a maximum 32A.
 
R P said:
I have that Morec, except mine has the 26' cable. My son recently bought the same one (20' cable) for his Tesla. His OEM one started to fail (overheating), so now he also uses the Morec and works great for him.

The charge rate is adjusted at the car, not the EVSE, which can charge to a maximum 32A.
Click to expand...

Ah. Thank you. I was hoping it was more adjustable, allowing for 12 / 15 / 16 / 20 / 24 amps on 120v
 
markintosh13 said:
Ah. Thank you. I was hoping it was more adjustable, allowing for 12 / 15 / 16 / 20 / 24 amps on 120v
Click to expand...
You don't need an adjustable EVSE since that control is in the car. It is the EVSE max that matters as you can not charge above that, just lower.
 
R P said:
You don't need an adjustable EVSE since that control is in the car. It is the EVSE max that matters as you can not charge above that, just lower.
Click to expand...

Well, I see the adjustments you made when plugged into a TT-30, which looks like it works well.

What would happen when used with adapters and plugged into a 20 amp 5-20 plug? I assume if the evse couldn't be set to 16amps, and the Kona tried to pull 20amps on it's lowest setting, it would be at the threshold which might be a bit much for a 12 hour charging session. If then used with a 5-15 plug, and unable to set it lower it would pop that 15 amp breaker?
 
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markintosh13 said:
Well, I see the adjustments you made when plugged into a TT-30, which looks like it works well.

What would happen when used with adapters and plugged into a 20 amp 5-20 plug? I assume if the evse couldn't be set to 16amps, and the Kona tried to pull 20amps on it's lowest setting, it would be at the threshold. If then used with a 5-15 plug, and unable to set it lower it would pop that 15 amp breaker.
Click to expand...
Yes, you need to set the car amp pull low enough so as not to blow the breaker. IE don't pull more than 80% of the breaker amp size. Same would be apply to using multiple max amp EVSE settings. You would have to be sure not to blow the breaker with the wrong EVSE setting. But having to control settings both on the car and EVSE just complicates things. Easier to just use the car settings and have an EVSE with a high enough max setting to handle all your car pull needs.

And why pay extra for settings on your EVSE that you don't need. It's like wifi on your EVSE. Why? You can monitor and control your car charging and settings remotely through Bluetooth. I made good use of mine when charging remotely at an L2 station.
 
Hmm, looks like there's a Morec that has a button on it and switches from 32 to 16 amps. That combined with the amperage settings in the Kona would cover the desired range. It's currently out of stock for shipment to Canada, but it gives me hope for an inexpensive versatile adjustable travel charger that (with adapters) would cover all input types.
 
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