Mixed connectors
The best EV charger when your two cars use different plugs
One car has the small Tesla-style plug and the other has the big round one. You do not need two chargers, and you probably do not need the most expensive answer either.
By Sawyer V. · Published November 7, 2026

How this page is funded: we earn a commission if you buy through our Amazon links, at no extra cost to you. It does not change what we recommend, and we say plainly when the honest answer is to buy nothing. Full disclosure.
The verdict: unless both cars need to be plugged in simultaneously, buy a J1772 charger and one certified J1772-to-NACS adapter. The Grizzl-E Classic is the no-app, cast-aluminum, NEMA 4 unit this site recommends for a first charger anyway, and the Lectron J1772-to-NACS adapter publishes UL 2252 certification with an 80 A rating and temperature monitoring in the body -- far above anything a house will ask of it. If you would rather not have a loose adapter in the household at all, the Tesla Universal Wall Connector builds the adapter into the holster and is the tidiest single-unit answer. If both cars genuinely plug in at once, the Grizzl-E Duo Connect is the two-cable route, with the honest caveat that its 40 amps divides.
Mixed-connector picks
Ranked for a first home charger. Every row jumps to the full write-up below.
| # | Product | Best for | Max output | Price |
|---|---|---|---|---|
| 1 | A two-car, two-connector garage | 48 A11.5 kW | $918.00 · View on Amazon#ad how we are funded · price as of November 8, 2026 | |
| 2 | Harsh weather and no app | 40 A9.6 kW | $299.99 · View on Amazon#ad how we are funded · price as of November 8, 2026 | |
| 3 | NACS car, J1772 charger | 80 A19.2 kW | $39.99 · View on Amazon#ad how we are funded · price as of November 8, 2026 | |
| 4 | Two EVs on one circuit | 40 A9.6 kW | $599.99 · View on Amazon#ad how we are funded · price as of November 8, 2026 | |
| 5 | A J1772 car, a Tesla wall unit | 80 A19.2 kW | $169.99 · View on Amazon#ad how we are funded · price as of November 8, 2026 | |
| 6 | Grizzl-E toughness, with an app | 40 A9.6 kW | $299.99 · View on Amazon#ad how we are funded · price as of November 8, 2026 |
First, work out whether you have a problem
A lot of mixed-connector households discover they do not need to buy anything. The Department of Energy's own statement is that every Tesla comes with a J1772 adapter, which means a Tesla parked next to a J1772 car can share a single J1772 charger using the part that shipped in the car. If your household is a Tesla and a Mustang Mach-E, go and look in both trunks before reading any further.
The second question is timing, and it decides more than the connectors do. Two typical days of driving is about 21 kWh, which a 40 A charger replaces in a little over two hours -- so two cars can comfortably take turns across one night on one charger. The best EV charger for two EVs has that arithmetic in full. Simultaneous charging is a convenience, not usually a requirement.
The three routes, priced by what they really cost
| Route | What you buy | Who it suits | The catch |
|---|---|---|---|
| One charger plus an adapter | A J1772 charger, and one UL 2252 adapter if the car did not come with one | Almost everybody -- cheapest, and the charger is a normal charger | An adapter lives on the connector and can be left behind or mislaid |
| One dual-connector charger | Tesla Universal Wall Connector | A household that wants nothing loose and nothing to think about | Costs several times a J1772 unit plus an adapter |
| One charger, two cables | Grizzl-E Duo Connect, J1772/NACS | Two cars that must both be plugged in overnight | 40 A total, so roughly 20 A each when both draw at once |
| Two chargers | Two units plus load management or a second circuit | Very high mileage on both cars, or two long-distance commutes | The expensive answer to a problem an adapter solves. Read the load calculation first |
Which adapter direction do you need?
This is the part people get wrong, and buying the wrong direction is easy because both products are called "a J1772 adapter". The rule is to name the charger and then the car.
- J1772 charger, NACS car -- you need a J1772-to-NACS adapter. This is the common case and the one that costs least, because a J1772 wall charger is the mainstream product.
- NACS charger (or a Tesla Wall Connector), J1772 car -- you need a NACS-to-J1772 adapter. Lectron's is rated 80 A at 240 V with IP67 and UL 2252, and Lectron states plainly that it will not work at a Supercharger, because that is DC and a different part.
- Either way, buy certified. UL 2252 is the standard for these adapters. An uncertified adapter sits between a 240 V supply and your car's inlet all night.
The best J1772 adapters covers both directions in detail, and EV charging adapters, sorted out is the wider list including the ones that came free with the car.
What the dual-connector units actually give you
Two products solve this inside one box and they solve different problems. Tesla's Universal Wall Connector carries the J1772 adapter in the holster, so the adapter cannot be mislaid and nobody has to fit it in the dark -- one cable, one connector, two car types, 48 A. United Chargers' Duo Connect is the other idea: two separate 25-foot cables, available in a J1772/NACS pairing, so both cars can be plugged in at the same time. The specification to read before buying the Duo is the one United Chargers publishes itself -- 40 A total output, which divides between the two cables when both cars are drawing.
If you are weighing those two specifically, this site has the detail: the Tesla Universal Wall Connector review and the Grizzl-E Duo Connect review. And if your household is NACS-only rather than mixed, the best NACS home chargers is the page for that -- it is a different question, and it has a different answer.
The six picks
1. A two-car, two-connector garage

Tesla Universal Wall Connector
Tesla · J1772 + NACS · 48 A / 11.5 kW · 24 ft cable
The Wall Connector with a J1772 adapter built into the holster, so it charges a Tesla and a non-Tesla without anything loose to lose.
What is good
- Charges NACS and J1772 cars without a separate adapter to store
- Same 48 A output and four-year warranty as the Gen 3
- The adapter docks in the holster, so it cannot walk off
What is not
- Costs more than the NACS-only Gen 3
- Hardwired only
| Maximum output | 48 A / 11.5 kW at 240 V |
|---|---|
| Connector | NACS with an integrated J1772 adapter |
| Cable | 24 ft |
| Installation | Hardwired |
| Warranty | 4 years |
Skip this if: Skip it if both cars use the same connector. You are paying for an adapter you do not need.
Specifications above are the manufacturer’s published figures. Source: Tesla. We have not tested this unit — see how we pick.
2. Harsh weather and no app

Grizzl-E Classic
United Chargers · J1772 · 40 A / 9.6 kW · 24 ft cable
A cast-aluminum box with no app, no account and no firmware to update. If you want a charger that behaves like an appliance, this is the one.
What is good
- Cast aluminum NEMA 4 / IP67 enclosure, built for outdoor mounting
- No app, no account, no network dependency
- Amperage is set with physical switches, not software
- Protections for over-current, over-voltage, ground fault and over-temperature
What is not
- 40 A ceiling, slower than the 48 A units if your panel can take more
- No scheduling, so off-peak charging has to be set in the car
- The cold-flexible 24 ft cable is only on the Extreme Edition
| Maximum output | 40 A / 9.6 kW at 240 V |
|---|---|
| Adjustable | 16, 24, 32 or 40 A |
| Connector | SAE J1772 |
| Cable | 24 ft on the Extreme Edition |
| Enclosure | Cast aluminum, NEMA 4 / IP67 |
| Certification | UL certified |
| Warranty | 3 years |
Skip this if: Skip it if you want scheduled charging or energy tracking in an app. The Classic deliberately has neither.
Specifications above are the manufacturer’s published figures. Source: United Chargers, InsideEVs. We have not tested this unit — see how we pick.
3. NACS car, J1772 charger

Lectron J1772 to Tesla (NACS) adapter
Lectron · J1772 to NACS · 80 A / 19.2 kW
Lets a Tesla or any NACS-port car charge from a J1772 charger. Rated to 80 A, certified to UL 2252, with temperature monitoring built into the body.
What is good
- Certified to UL 2252, which is the standard written for exactly this device
- Rated well above any home circuit at 80 A, so it is never the limiting part
- Temperature monitoring in the body, the failure mode that matters on an adapter
- Works on any J1772 Level 1 or Level 2 charger
What is not
- Most owners already have one in the car and do not need to buy anything
- AC only -- it is not a DC fast-charging adapter
- One more loose item to keep track of, unless it lives clipped to the cable
| Direction | J1772 charger to a NACS (Tesla) port |
|---|---|
| Maximum current | 80 A |
| Voltage | 240 V AC |
| Certification | UL 2252 |
| Safety | Built-in temperature monitoring |
| Use | AC charging (Level 1 and Level 2) |
Skip this if: Skip it if your car came with one. Every Tesla ships with a J1772 adapter, and cars sold with a native NACS port ship with one too -- check the trunk before buying.
Specifications above are the manufacturer’s published figures. Source: Lectron. We have not tested this unit — see how we pick.
4. Two EVs on one circuit

Grizzl-E Duo Connect
United Chargers · NACS · 40 A / 9.6 kW · 25 ft cable
Two 25 ft cables on one 40 A plug-in charger, so two EVs can be plugged in at once. The honest catch is in the maker's own spec: 40 A total, and 20 A each when both cars charge together.
What is good
- Two cars can stay plugged in on one 50 A circuit, with no swapping cables at midnight
- Two 25 ft cables, the longest on this site, so both bays are reachable
- Connector pairs to suit a mixed household: J1772/J1772, J1772/NACS or NACS/NACS
- UL/cUL listed with a published file number, and a UL Type 4 indoor/outdoor rating
- Wi-Fi scheduling and statistics in the Grizzl-E Connect app, with an indicator light per connector
What is not
- 40 A is the total, not per car: United Chargers lists 20 A each when two vehicles charge at once
- Plug-in only at 40 A, so there is no 48 A hardwired version
- Costs far more than one Classic Connect, which gives a single car the full 40 A
- Two-car households that charge at different times gain nothing over a single charger
- 2.4 GHz Wi-Fi only, like the rest of the Connect range
| Maximum output | 40 A total (the maker lists 10 kW) |
|---|---|
| With two cars charging | 20 A each, per United Chargers |
| Adjustable | 40 A down to 16 A |
| Connectors | Two: J1772/J1772, J1772/NACS or NACS/NACS |
| Variant on the buy row | NACS-NACS -- the only pair currently in stock on Amazon |
| Cables | Two, 25 ft (7.6 m) each |
| Plug | NEMA 14-50 |
| Enclosure rating | UL Type 4, indoor and outdoor |
| Operating temperature | -30 C to +50 C (-22 F to 122 F) |
| Enclosure size | 10.25 x 6.25 x 3.75 in |
| Weight | 26.46 lb (12 kg) |
| Connectivity | Wi-Fi (2.4 GHz) and the Grizzl-E Connect app |
| Certification | UL/cUL, file E510712 |
| Warranty | 3 years, or 5 years chosen at purchase |
Skip this if: Skip it if both cars charge at different times -- one cheaper charger does the same job overnight. Check the connector pair before ordering, too: United Chargers builds this in J1772/J1772, J1772/NACS and NACS/NACS, but the live Amazon listing is the NACS-NACS version, so a J1772 car needs the mixed pair ordered elsewhere or an adapter.
Specifications above are the manufacturer’s published figures. Source: United Chargers. We have not tested this unit — see how we pick.
5. A J1772 car, a Tesla wall unit

Lectron Tesla (NACS) to J1772 adapter, 80 A
Lectron · NACS to J1772 · 80 A / 19.2 kW
The AC adapter, not the DC one: it lets a J1772 car charge from a Tesla Wall Connector, Destination Charger or Mobile Connector at up to 80 A. Lectron is explicit that it will not work on a Supercharger.
What is good
- 80 A and 240 V, so it is not the limiting part on any home circuit
- UL 2252 certification published, which a lot of this category does not have
- IP67, so an outdoor Tesla Wall Connector is fair game
- Covers Wall Connectors, Destination Chargers and Mobile Connectors, not just one of the three
- 5 AWG cable and a temperature sensor, both named on the maker's page
What is not
- AC only -- it does nothing at a Supercharger, and Lectron states that plainly
- No warranty term published on the product page; the stated cover is a 30-day return
- If your automaker sells its own Level 2 NACS adapter, that part comes first
- One more thing to lose out of the trunk
| Rating | Up to 80 A at 240 V |
|---|---|
| Direction | NACS AC charger to a J1772 port |
| Chargers | Tesla Wall Connectors, Destination Chargers and Mobile Connectors |
| Not for | Tesla Superchargers -- Lectron says so explicitly |
| Cable | 5 AWG, which Lectron cites for current capacity and lower heat |
| Weather rating | IP67, indoor or outdoor |
| Safety | Built-in temperature sensor; automaker-approved latch design, per Lectron |
| Certification | UL 2252 |
Skip this if: Skip it if nobody in reach owns a Tesla connector, or if what you actually want is Supercharger access -- that is a DC adapter and a different part. Skip it too if your automaker sells its own; that part comes first.
Specifications above are the manufacturer’s published figures. Source: Lectron. We have not tested this unit — see how we pick.
6. Grizzl-E toughness, with an app

Grizzl-E Classic Connect
United Chargers · J1772 · 40 A / 9.6 kW · 25 ft cable
The next-generation Grizzl-E: 40 A on a NEMA 14-50, a 25 ft cable, a UL Type 4 indoor/outdoor rating -- and, unlike the Classic, Wi-Fi and the Grizzl-E Connect app. Sold with a J1772 or NACS cable.
What is good
- 25 ft cable, a foot longer than the Classic Extreme Edition's
- Wi-Fi app with schedules and charging statistics, which the Classic deliberately lacks
- UL/cUL listed, with a published file number
- Rated to run from -22 F to 122 F
What is not
- 40 A ceiling, with no hardwired 48 A version
- Sold with a NEMA 14-50 plug; the Classic's 6-50 option is not among the Connect listings we found
- The app needs 2.4 GHz Wi-Fi where the charger is mounted
| Maximum output | 40 A / 9.6 kW at 240 V (the maker lists 10 kW) |
|---|---|
| Adjustable | 16 A to 40 A |
| Connector | SAE J1772 or NACS, chosen at purchase |
| Cable | 25 ft (7.6 m) |
| Plug | NEMA 14-50 |
| Enclosure rating | UL Type 4, indoor and outdoor |
| Operating temperature | -22 F to 122 F |
| Size | 10.25 x 6.25 x 3.75 in |
| Connectivity | Wi-Fi (2.4 GHz) and the Grizzl-E Connect app |
| Certification | UL/cUL, file E510712 |
| Warranty | 3 years; 5-year warranty sold separately |
Skip this if: Skip it if you wanted a Grizzl-E precisely because it has no app -- the original Classic is still the no-software choice -- or if you want 48 A. The Classic Connect is a 40 A plug-in unit.
Specifications above are the manufacturer’s published figures. Source: United Chargers. We have not tested this unit — see how we pick.
One thing to decide before the electrician quotes
Mixed-connector households are the ones most likely to change again. The industry is moving to NACS, several makers now ship cars with a native NACS port, and a J1772 car bought today may be replaced by a NACS one. That argues for the route that is cheapest to change -- a plain J1772 charger plus adapters -- rather than the route that bakes one answer into the wall. Best NACS home charger and NACS vehicles both cover where the changeover currently stands.
FAQ
Questions people actually ask
Can one EV charger work with both NACS and J1772 cars?
Do I need two chargers for two EVs with different plugs?
Which J1772 adapter do I need?
Does the Grizzl-E Duo charge two cars at full speed?
Is it safe to leave an adapter on the charger permanently?
Sources
Where these numbers come from
- Wall Connector support page — TeslaPublished connector compatibility, output and warranty terms for the Wall Connector and the Universal Wall Connector. The Universal carries a J1772 adapter in the holster.
- Grizzl-E Duo Connect 40A — United ChargersTwo 25 ft cables on one 40 A plug-in charger; United Chargers publishes the output as 40 A total, which divides to about 20 A each when two vehicles charge at once; connector options J1772/J1772, J1772/NACS or NACS/NACS; UL Type 4 indoor/outdoor rating; UL/cUL listed file E510712; Wi-Fi and the Grizzl-E Connect app; 3-year warranty with a 5-year option at purchase.
- Lectron J1772 to Tesla (NACS) EV adapter, UL 2252 certified, 240 V 80 A — LectronLets a NACS-port car charge from a J1772 charger; rated to 80 A at 240 V; UL 2252 certified; temperature monitoring built into the body.
- Tesla (NACS) to J1772 Adapter, 80 Amp, UL 2252 Certified — LectronUnlocks Tesla or NACS chargers for a J1772 EV; supports up to 80 A and 240 V with IP67 protection; compatible with Tesla Destination Chargers, Mobile Connectors and Wall Connectors; NOT compatible with Tesla Superchargers; 5 AWG cable; UL 2252 certified with a built-in temperature sensor; 30-day returns.
- Electric Vehicle Charging Infrastructure: AC Level 2 equipment — U.S. Department of Energy, Alternative Fuels Data CenterAC Level 2 equipment offers charging through 240 V (typical in residential applications) or 208 V service; a Level 2 unit can range from 2.9 to 19.2 kW output and adds roughly 25 miles of range per hour. All Tesla vehicles come with a J1772 adapter, which allows them to use non-Tesla Level 2 charging equipment. Smarter Level 2 units are distinguished by features including charging timers, monitoring and displays. Read 2026-11-07.
- Grizzl-E Classic Connect 40A — United Chargers40 A / 9.6 kW, NEMA 14-50 plug, 25 ft cable, UL Type 4 indoor/outdoor rating, UL/cUL listed file E510712, Wi-Fi (2.4 GHz) and the Grizzl-E Connect app, J1772 or NACS connector chosen at purchase, 3-year warranty with a 5-year option sold separately.
Read next
Related reading
- The best EV chargers for a two-EV householdCharging two EVs at home: taking turns, power sharing, or two circuits.
- The best J1772 adaptersWhich J1772 adapter direction you need, which came free with the car, and the safety rules.
- The best NACS home chargersEvery home charger sold with a NACS connector, ranked, plus when a J1772 unit is still the better buy.
- Adding a second EV chargerFour routes for a second EV, what each asks of your panel, and when to do nothing at all.