One Charger for a Tesla and a Non-Tesla

Two cars, two plug shapes, one driveway. The instinct is to search for a charger with both connectors, and one exists — we cover it below. But for most households that is the expensive answer to a problem a single adapter already solves, and often an adapter you already own. This page lays out the three routes, what each costs, and which driver ends up holding the adapter under each one.

The two connectors, briefly

Every non-Tesla EV sold in North America until recently uses SAE J1772 for Level 1 and Level 2 charging. Teslas use NACS, now standardized as SAE J3400 and being adopted across the industry. They are different shapes carrying the same AC power and the same signaling, which is why a passive adapter between them works. Lectron’s FAQ puts it plainly: adapters “don’t generate power — they only enable compatibility between chargers and vehicles.” Our connector guide has the history and the transition timeline.

Route one: a J1772 charger and the adapter in the trunk

This is the route that costs nothing extra, and it is the one most mixed households should start from. A J1772 charger serves the non-Tesla directly. The Tesla charges through the J1772-to-Tesla adapter that, per Lectron’s FAQ, is included with most Teslas — the same adapter Tesla drivers use at public J1772 stations. Lectron rates its own version of that adapter to 80 amps, which is more than any home charger delivers, so the adapter is not the bottleneck; the car’s onboard charger and the wall unit are.

The cost is a small ritual: the Tesla driver clips the adapter on before plugging in and takes it off after, or leaves it on the charger handle permanently, in which case the J1772 driver removes it. Households where the Tesla charges every night and the other car charges twice a week find that mildly annoying. Households where it is the other way round barely notice. The upside is the widest choice of chargers on the market, at the lowest prices, with no purchase beyond the charger.

Route two: a NACS charger and an adapter for the other car

Flip it. A NACS charger — the Lectron Nexus NACS, the ChargePoint Home Flex NACS, or the NACS versions of the Wallbox and Grizzl-E units, all of which the brands list — plugs straight into the Tesla. The J1772 car charges through a NACS-to-J1772 adapter, which Lectron’s FAQ lists as the “Tesla to J1772” type used to charge J1772 EVs at Tesla equipment and rates at 48 A and 250 V. That adapter is a purchase, and it lives on the second car’s side of the arrangement.

This route makes sense when the Tesla is the daily driver, or when you expect your next non-Tesla to arrive with a NACS port — which SAE J3400’s industry adoption makes increasingly likely. Buy the charger for the connector you will have in five years, and adapt the car you will not.

Route three: a charger with both cables

Grizzl-E’s Duo Connect is a single cast-aluminum unit with two 25-foot output cables, and its spec page lists J1772 and NACS Level 2 connections. Both cars plug in with no adapter, and both can charge at once — with a catch Grizzl-E states directly: the 40 amps is shared, splitting in half automatically or by the per-connector limits you set in the app. One car alone gets the full 9.6 kW; two at once get about 4.8 kW each by our arithmetic, roughly 17 miles of range per hour apiece. For two commuters charging overnight that is usually plenty.

One honest caveat: the Amazon listing we link is the NACS-to-NACS cable pairing. Grizzl-E sells the mixed J1772-plus-NACS version direct. If you want route three for a mixed household, that is the SKU to ask for. Our Duo Connect review and the two-car roundup cover the load-sharing arithmetic and the alternatives, including two chargers on one circuit.

What stays the same on every route

The circuit. One charger is one continuous load, and the NEC sizes its circuit at 125% of the charger’s current whether one car or two will use it: a 50-amp breaker for a 40-amp unit, 60 for a 48. The dual-cable Duo does not need more, because it shares rather than doubles. And the speed ceiling is set per car by its onboard charger, not by the plug shape — a Tesla and a non-Tesla on the same 48-amp charger may charge at different rates for reasons that have nothing to do with the adapter. Our onboard charger guide explains why.

The chargers, by route

Four from our registry, one for each way of doing this: two J1772 units for route one, the native NACS unit for route two, and the dual-cable Grizzl-E for route three.

Quick picks

Ranked on published specs, charging speed, electrical fit and value. Select a row to jump to the full write-up. We have not bench-tested these chargers — here is exactly what we do instead.

#	Product	Best for	Price
1	ChargePoint Home Flex The safest default for most homes: you set the amperage in the app to 16, 24, 32, 40, 48 or 50A, so one charger fits whatever circuit your panel can spare today and scales up if you upgrade later. The app is the most mature here, firmware arrives over the air, and the warranty is long.	Route one: J1772, best app, NACS version also sold	$549.00 · View on Amazon Price as of September 18, 2026. #ad How we’re funded
2	Emporia Level 2 EV Charger The value pick that doesn't feel cheap: a full 48 amps, ENERGY STAR listing, WiFi with genuine energy monitoring, and a 25 ft cable — for well under what the big names charge. It's the one we point most people to first.	Route one: J1772 value, 48 A hardwired	$449.00 · View on Amazon Price as of September 18, 2026. #ad How we’re funded
3	Lectron Nexus NACS (Tesla) Charger For a Tesla owner who doesn't want to babysit an adapter: a native NACS (J3400) connector plugs straight into the car, at a full 48 amps, with the safety listings you want. No app, but Teslas schedule charging in the car anyway.	Route two: native NACS, no app	$429.99 · View on Amazon $459.997% off Price as of September 18, 2026. #ad How we’re funded
4	Grizzl-E Duo Connect 40A One box, two cables, one circuit. The Duo Connect lets a two-EV household charge both cars overnight without a second charger, a second breaker or a panel upgrade — because it splits one 40-amp supply between the connectors rather than doubling it. That is the whole trade: convenience and a much cheaper install, at half the speed each when both cars are plugged in.	Route three: two cables (ask for the mixed pair)	$899.99 · View on Amazon Price as of September 18, 2026. #ad How we’re funded

Which route, in one paragraph

If the non-Tesla charges most, or you want the cheapest good charger: a J1772 unit, and the Tesla uses its own adapter. If the Tesla charges most, or your next car will be NACS: a NACS unit, and one adapter for the other car. If both cars charge every night and nobody wants to touch an adapter, and you can accept shared amps: the dual-cable Grizzl-E in its mixed pairing. Most households are the first case, and most of them already own everything they need except the charger.