Nearly a year ago, General Motors began selling an adapter that let its electric vehicles tap into Tesla’s vast Supercharger network. For many EV owners, it felt like a breakthrough — suddenly, their charging options expanded overnight, unlocking the ability to use the North American Charging Standard (NACS) plugs that Tesla had long kept proprietary.
Now, GM is doubling down on adapters — or, depending on how you look at it, tripling down. The automaker has announced three new adapters designed to help its EV customers connect to charging stations that operate on different speeds and standards. On paper, this move is all about flexibility: giving drivers confidence that they can plug in almost anywhere. In practice, though, it’s also adding layers of complexity. In two-EV households, it’s not hard to imagine glove compartments filling up with four or more separate dongles.
The tangled world of charging standards
For years, the U.S. EV market was dominated by the Combined Charging System (CCS) standard — with Tesla standing as the major exception. Then, in 2022, Tesla threw open the gates, making its charging connector and port design public and rebranding it the North American Charging Standard (NACS). It was a bold bet on the future: Tesla wanted the industry to adopt NACS and, in doing so, turn its network into the de facto standard.
The gamble paid off. Today, most automakers either sell adapters for Tesla’s Superchargers or have committed to building NACS ports directly into their vehicles. GM is firmly on that path. “GM has already committed to essentially transitioning our whole EV portfolio over to NACS,” said Tim Ash, director of hardware products for GM Energy. “We believe that moving to that unified standard simplifies the experience for our customers.”
But simplification is a destination, not the current reality. Until the transition is complete, drivers are living through an awkward in-between era — one that requires juggling multiple adapters to cover every charging possibility.
The new lineup of GM adapters
GM’s new offerings are meant to cover the gaps. Here’s how they break down:
- NACS-to-J1772 adapter → For Level 2 charging on vehicles that don’t have NACS built in.
- J1772-to-NACS adapter → For future GM EVs equipped with NACS ports that still need access to J1772 chargers.
- CCS-to-NACS adapter → For fast charging at CCS stations when the vehicle has a NACS port.
Add these to the already available NACS-to-CCS adapter, and you’ve got a growing family of plugs and dongles. Ash insists the payoff is worth it: “These adapters make sure EV drivers — regardless of what charging type they have on their vehicle — can access essentially any charging wherever they need it.”
GM isn’t alone in this adapter arms race. Hyundai, for example, sells its 2025 NACS-equipped Ioniq 5 with two adapters, one for Level 2 and one for CCS fast charging. The larger point is clear: this transition will likely get messier before it gets cleaner.
Confusion on the road, clarity at home
For most EV drivers, the majority of charging happens in predictable places: at home, in a garage, or at work. There, the type of plug rarely changes, so adapters may sit unused in the trunk. But long road trips are a different story. Public charging stations still feature a patchwork of standards, and without the right adapter, drivers could find themselves stranded or forced into inconvenient detours.
That makes keeping adapters handy essential. In fact, some drivers may end up buying duplicate sets to leave at home and in the car — a pricey proposition, since many adapters cost more than $200 apiece.
Why one plug can’t rule them all (yet)
The reason this isn’t simpler comes down to the technical differences between CCS and NACS. While the two standards look somewhat alike, their electrical architecture diverges. NACS passes electricity through two main pins at all speeds, but CCS splits the workload: one set of pins handles Level 2 charging, and a separate set manages fast charging. Combining these into a single “universal” plug would likely require more expensive power electronics, driving up costs for both automakers and customers.
This clash of standards isn’t unique to the EV world. Consumer electronics went through something similar. In under two decades, Apple sold iPhones with three different types of charging connectors. But while people shrugged off the shift from the 30-pin dock to Lightning and eventually to USB-C, cars aren’t smartphones.
A smartphone costs $500 to $1,000, and consumers replace it every two or three years. Dongles cost maybe $30. Cars, on the other hand, now average nearly $50,000 per new vehicle, and many stay on the road for over a decade. That means legacy charging standards will linger for years to come, long after new models have moved on.
The road ahead for GM
GM knows the transition will take time. So far, it has only committed two vehicles to the NACS standard — the 2026 Cadillac Optiq and the 2027 Chevrolet Bolt. The rest of its EV lineup remains tied to CCS for the foreseeable future, with no clear timeline for a full migration.
In other words, the adapter era isn’t going away anytime soon. Drivers will have to keep their glove boxes stocked, their charging plans flexible, and their patience steady. Or as Tim Ash put it with understatement, the process “will take some time.”
Until then, EV ownership will come with a small but inevitable accessory: the humble dongle.