What is NACS & what does it mean for fast charging?

By Tritium

In June 2023, Ford and GM announced they’d be switching from the Combined Charging System (CCS) to Tesla’s North American Charging Standard (NACS) connectors for their future EVs. Less than a month later Mercedes-Benz, Polestar, Rivian, and Volvo also announced they’d support the NACS standard for their US vehicles in the coming years. The switch to NACS from CCS seems to have complicated the electric vehicle (EV) charging landscape, but it’s a great opportunity for charger manufacturers and charge point operators (CPOs). With NACS, CPOs will be able to charge more than 1.3 million Tesla EVs on the road in the US.

What is NACS?

NACS is Tesla’s previously proprietary direct current (DC) fast charging connector standard—formerly known simply as the “Tesla charging connector.” It has been used with Tesla cars since 2012 and the connector design became available to other manufacturers in 2022. It was designed for Tesla’s 400-volt battery architecture and is much smaller than other DC fast charging connectors. The NACS connector is used with Tesla superchargers, which currently charge at a rate of up to 250kW.

What is the Tesla Magic Dock?

The Magic Dock is Tesla’s charger-side NACS to CCS1 adapter. About 10 percent of Tesla chargers in the US are equipped with Magic Dock, which lets users select a CCS1 adapter when charging. EV drivers need to use the Tesla app on their phones to charge their EVs with Tesla chargers, even when using the Magic Dock CCS1 adapter. Here’s a video of the Magic Dock in action.