Charging on a 3 prong 240 outlet

[KimBrennan]

Another consideration is that a 3 prong outlet means there may be no ground, and there have been reports of failure to charge (especially from the Rivian EVSE) when there isn't a stable ground potential.

On the NEMA 6-50 outlet, there is no neutral. In short, there are a lot of variations. Which is why there are so many different outlets.

Sponsored

 

[Electrified Outdoors]

Currently at a Campground, bought a TT-30(RV Plug/Nema 14-50 and the mobile charger won't power up. I've used the 14-50 plug that comes with the mobile charger with no issue at home, I've also used the 120v regular household plug on the Campground power outlet with no issue.

Either every 30amp outlet is not working on these sites (tried a few) or the adapter is bunk... Or the mobile charger is having issue with the 3-4 prong connection?

Anyone have any thoughts?

Also, I'm obviously going to lower the draw in the vehicle to closer to 20amps once this does work.

You need one specifically designed for EVs.

https://amzn.to/3Z0xO30

 

[Rivifan]

You need one specifically designed for EVs.

https://amzn.to/3Z0xO30

Thank you. Just got back from RV campground with same issue. Came here hoping someone knowledgeable had the answer, and sure enough...
I see one of the positive reviews on that product page is from an R1T owner, so order placed. Thnx!

 

[Electrified Outdoors]

Thank you. Just got back from RV campground with same issue. Came here hoping someone knowledgeable had the answer, and sure enough...
I see one of the positive reviews on that product page is from an R1T owner, so order placed. Thnx!

I own and have used that adapter. It works well. Just make sure you check the line voltage before you start charging and check for voltage drop when you start charging. If voltage drops below 110 or worse yet below 100 it could cause neighboring campers to get angry. If there is already a lot of voltage drop you can reduce charging amperage as low as needed to help prevent problems.

Last year in Gettysburg I could only charge at 8amps ? . Crowded campground and old electrical system on the river prevented me from going higher.

 

[Riviot]

You bought the wrong adapter. The one you bought is only for RVs. Adapters made for RVs won't work with an EV - you need to buy an EV-specific TT-30 to NEMA 14-50 adapter. I use this one, and it works: https://www.amazon.com/Parkworld-885378-Adapter-TT-30P-14-50R/dp/B07G2MT4T6

Add me to the mosquito-bitten club of buying the wrong TT-30 adapter... Looks like 120v tonight it is...

Sidebar: any Oregon-bound adventures, avoid South Beach State Park. ?????????

 

[VSG]

Dude, just look at where you are ... Spending a little extra time charging tomorrow morning is a small price to pay. Live and learn, but enjoy what's in front of you right now.

Oh, and while you're there ... don't forget to visit Exploding Whale Park!

Sponsored