Are There Alternatives to Rivian Level2 Charger?

[CraigB]

On my Gen 1 R1T, the Tesla Mobile charger works (with an adapter), but it does take about 15-30 seconds to go from red to green (on the truck side).

I've heard from others that the Tesla gen1/2 mobile charger will charge pretty much anything when it runs through a J1772 adapter... but if you're plugging into a NACS native vehicle it will just get confused and refuse

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[CharonPDX]

I've heard from others that the Tesla gen1/2 mobile charger will charge pretty much anything when it runs through a J1772 adapter... but if you're plugging into a NACS native vehicle it will just get confused and refuse

That shouldn't happen. For AC charging (L1/L2) the spec is identical. Any adapter is literally just passing the pins straight through. I don't have any non-Tesla NACS vehicles to confirm, though.

I do use mystery Tesla Gen 1 mobile cord on all my EVs with an adapter, though.

 

[CraigB]

That shouldn't happen. For AC charging (L1/L2) the spec is identical. Any adapter is literally just passing the pins straight through. I don't have any non-Tesla NACS vehicles to confirm, though.

I do use mystery Tesla Gen 1 mobile cord on all my EVs with an adapter, though.

"I don't have any non-Tesla NACS vehicles to confirm, though."

Find a buddy with a non-Tesla NACS vehicle and try it out. You'll find the same thing the rest of the internet has found-- because it's going into a NACS vehicle the mobile charger tries to talk "enhanced J1772" rather than vanilla J1772 and it freaks out the vehicle. Lots and lots of discussions on Reddit and elsewhere about it, but Gen1/Gen2 Tesla mobile connectors almost never work with non-Tesla NACS vehicles

 

[CharonPDX]

"I don't have any non-Tesla NACS vehicles to confirm, though."

Find a buddy with a non-Tesla NACS vehicle and try it out. You'll find the same thing the rest of the internet has found-- because it's going into a NACS vehicle the mobile charger tries to talk "enhanced J1772" rather than vanilla J1772 and it freaks out the vehicle. Lots and lots of discussions on Reddit and elsewhere about it, but Gen1/Gen2 Tesla mobile connectors almost never work with non-Tesla NACS vehicles

Interesting. I don't know anyone with a non-Tesla NACS. Only J1172, CCS, or actual Teslas.

 

[Jeremy3292]

That shouldn't happen. For AC charging (L1/L2) the spec is identical. Any adapter is literally just passing the pins straight through. I don't have any non-Tesla NACS vehicles to confirm, though.

I do use mystery Tesla Gen 1 mobile cord on all my EVs with an adapter, though.

The communication protocol on Tesla Gen2 mobile and wall connectors was Tesla proprietary. It will not work with NACS vehicles as NACS didn’t exist when these chargers were made. Plenty of threads and Reddits on this of former Tesla owners trying them with 2026 Rivian R1s and other OEMs with native NACS ports. Doesn’t work. You need the Gen3 mobile or wall connector for it to work.

 

[fratpack]

In eager anticipation of ordering an R2 Premium, the reality of needed an in-home level 2 charger is obvious. According to the Rivian Store, their level 2 charger is currently at $800 without installation. I have found several reputable companies offering level 2 charges for almost half the cost.

What are your feelings. Should I use a Rivian charger, or is it safe to go with another? In either case, the charger and 50A 240V line from my circuit panel will be installed by me.

Thanks!

Roger

 

[fratpack]

I currently have a Genesis GV70 Prestige. I had an electrcian install a 240/40amp outlet in my garage. I bought a $150 charger from Amazon that you can adjust betreen 30 amp to 40 amp. I been using it for almost 3 years now without any issues. Anything branded they just jack up the price. Good luck on whatever you choose.

 

[VSG]

The communication protocol on Tesla Gen2 mobile and wall connectors was Tesla proprietary. It will not work with NACS vehicles as NACS didn’t exist when these chargers were made. Plenty of threads and Reddits on this of former Tesla owners trying them with 2026 Rivian R1s and other OEMs with native NACS ports. Doesn’t work. You need the Gen3 mobile or wall connector for it to work.

This is also the same reason Tesla V1 and V2 superchargers won't work with Rivians. Those Tesla chargers are not NACS, they are Tesla-proprietary chargers.

The physical plug for NACS is also technically different than the Tesla plug, although NACS is a superset of the Tesla plug so the Tesla plug should always fit in a NACS outlet.

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