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The Charge Curve

HUB 02 · Cables & Adapters

The Best J1772 to NACS Adapters

For a Tesla or a 2026+ NACS-port EV that wants to use the enormous installed base of J1772 chargers - the safety-listed adapters to buy.

By Stephen V.Updated How we compare
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The short answer

Quick picks

#ProductBest forScorePrice
01
LENZ J1772 → NACS Adapter

A UL-2251-certified J1772-to-NACS adapter — the one a Tesla or a 2026+ NACS-port EV needs to use the enormous installed base of J1772 chargers.

A Tesla / NACS car using J1772 chargers
9.3
$29.99Amazon
02
FOCSPROD J1772 → Tesla Adapter

A UL-2252-listed budget adapter for charging a Tesla at any J1772 station — cheap insurance for a road trip.

A cheap J1772 → Tesla adapter
8.5
$23.99Amazon

#ad · Live prices from the Amazon Product API, as of Jul 19, 2026. Where we have no verified live price, we show none — we would rather leave a gap than print a number that has gone stale.

If you drive a Tesla or a newer NACS-port EV and want to plug into the huge installed base of J1772 chargers, the LENZ J1772-to-NACS adapter is the one to buy - explicitly certified to UL 2251, the connector-safety standard that matters. The FOCSPROD is the budget alternative, UL-2252 listed, for a road-trip spare.

Check the direction first. A J1772-to-NACS adapter goes on the end of a J1772 charger's connector so it fits a NACS (Tesla) port. If you have the opposite need - a J1772 car that wants to use Tesla equipment - you want the NACS-to-J1772 roundup instead. If the standards are new to you, the connector types explainer is the place to start.

Why the UL listing is the whole story

These adapters are cheap and functionally similar, so the differentiator is the safety certification. UL 2251 and UL 2252 are the standards written for EV connectors carrying charging current; an adapter that names one of them has been tested to a real bar, and one that names none is a pass no matter how low the price. Current rating is a non-issue - both picks are rated to 80 amps, far above any home or public AC circuit.

AC only. These enable AC charging at J1772 stations. They do not enable DC fast charging - whether your car can DC fast-charge at a given site is a matter of the car and the network, not a passive adapter.

The picks

The LENZ is the pick because it is explicitly certified to UL 2251 and opens the J1772 network to a Tesla or a 2026+ NACS-port car (Hyundai, Kia, Rivian and others) - the conservative, well-listed choice at a low price. The FOCSPROD is UL-2252 listed and typically even cheaper, a fine budget spare to keep in the frunk. Either one is small enough to lose, so clip it somewhere you will not forget it.

In detail

The picks, in full

01
LENZ LENZ J1772 → NACS Adapter

A Tesla / NACS car using J1772 chargers

LENZ J1772 → NACS Adapter

J1772 → NACS80A maxLevel 1 & 2 ACUL 2251 certified
9.3/10

A UL-2251-certified J1772-to-NACS adapter — the one a Tesla or a 2026+ NACS-port EV needs to use the enormous installed base of J1772 chargers.

Compatibility
9
Safety listing
10
Build quality
8
Value
10

Pros

  • Explicitly certified to UL 2251 — the connector-safety standard that matters most on an adapter carrying full current
  • Opens the J1772 network to a Tesla or a 2026+ NACS-port car (Hyundai, Kia, Rivian and others)
  • Inexpensive and pocketable

Cons

  • AC charging only
  • Small enough to misplace — keep it clipped in the frunk

Don't buy this if…

…your car uses a J1772 port. This adapter points the other way — a J1772 car needs a NACS-to-J1772 adapter to use Tesla equipment.

$29.99View on Amazon

Price as of Jul 19, 2026. Prices change — Amazon's is the one that counts.

#ad · we may earn a commission from this link to LENZ J1772 → NACS Adapter

02
FOCSPROD FOCSPROD J1772 → Tesla Adapter

A cheap J1772 → Tesla adapter

FOCSPROD J1772 → Tesla Adapter

J1772 → NACS80A / 250VAC chargingUL 2252 listed
8.5/10

A UL-2252-listed budget adapter for charging a Tesla at any J1772 station — cheap insurance for a road trip.

Compatibility
9
Safety listing
9
Build quality
7
Value
9

Pros

  • Certified to UL 2252 for the Tesla/NACS side of the connection
  • One of the least expensive ways to open the J1772 network to a Tesla
  • Rated well above any home or public AC circuit

Cons

  • Value brand — inspect for a snug, rattle-free fit before relying on it
  • AC only, like every passive adapter

Don't buy this if…

…you want the most established name. It does the same job as the LENZ; buy on price and the safety listing, both of which check out here.

$23.99View on Amazon

$29.9920% off

Price as of Jul 19, 2026. Prices change — Amazon's is the one that counts.

#ad · we may earn a commission from this link to FOCSPROD J1772 → Tesla Adapter

How we picked

We do not run a testing lab

We compiled published specifications from manufacturer manuals and spec sheets, verified the safety listings (UL / ETL), computed the real running and installation costs, checked the wiring math against the NEC continuous-load rule, and read aggregated owner reviews — then scored each product against a published rubric. The scores are judgments from documented research — they are not bench measurements, because we do not have a test lab and we are not going to pretend we do. Every spec and cost figure is cited in Sources.

Questions

Frequently asked

Can a Tesla use a J1772 charger with this adapter?

Yes - a J1772-to-NACS adapter lets a Tesla (or another NACS-port EV) plug into a J1772 Level 1 or Level 2 charger for AC charging. Tesla has historically included a version of this adapter, but a listed aftermarket one is a cheap spare. It does not affect DC fast charging.

What is the difference between UL 2251 and UL 2252?

Both are UL safety standards for EV connectors and adapters carrying charging current; you want to see one of them named on the product. For choosing between the two picks here, treat either listing as the reassurance you are looking for, and decide on price and fit.

Do I need this if my next car has a NACS port?

Likely yes, at least for a while. The installed base of home and public J1772 chargers is enormous and will not disappear overnight, so a NACS-port car benefits from a J1772-to-NACS adapter to reach all of it. Our NACS transition explainer covers what is changing and when.

Keep reading

Related

Receipts

Sources

We do not run a testing lab, and we do not pretend to. Where a measured number came from someone else's lab, we name them and link them. Where we could not verify something, we say so on the page rather than quietly leaving it out. Read our full method.