![]() ![]() ![]() Tesla doesn’t yet have a passenger vehicle or personal truck that takes advantage of higher-voltage DC fast-charging. In a big-picture sense, it hinges on Tesla being able to get that next-generation hardware (including the adapters) out. That’s why no automaker so far has said they’ll start putting the Tesla port on EVs before 2025. With an adapter, most 400-volt EVs would be able to charge on the Supercharger network at essentially the same rates that they see on CCS chargers.Īdapter hardware isn’t here yet and even when it is, with higher-voltage charging, it will be new territory to design a CCS plug adapter so that models like the GMC Hummer EV might ever see 800-volt charging at the power levels that customers would expect. Currently Tesla models charge up to 480 volts, making a peak power around 250 kw feasible. NACS remains a proprietary interface, but SAE International is working to make NACS a standard ahead of industry adoption. GM EVs get Tesla Supercharger access in 2024 And the big double-decker packs in the Chevy Silverado EV and GMC Sierra EV will charge the same way. ![]() That 800-volt “trick” permits the Hummer EV pickup, with its 205-kwh battery pack, to charge at 350 kw and gain nearly 100 miles of range in 10 minutes-despite its 400-volt system and its inefficiency compared to other EVs. In 400-volt charging, the packs are connected in parallel, but for 800-volt charging a switch allows them to be connected in series-like the cells in a long, multi-cell flashlight-to take advantage of the higher voltage. GM’s GMC Hummer EV, for instance, runs at 400 volts, and each layer of its dual-layer battery pack operates in some ways as an individual pack. That offers a different set of efficiency, performance, and weight-saving advantages, especially in tandem with high-voltage charging.Īlthough an 800-volt architecture helps maximize all those benefits, it isn’t necessary to reap what matters the most right now to a number of EV shoppers looking at road-trip viability-and how quickly they might get electrons into position in the battery pack's cells. Porsche 800-volt charging stations installed at dealer Where the 800V confusion startsĨ00-volt charging is not to be confused with 800-volt vehicle architectures-permitting motors, inverters, and other core components to run at higher voltage. ![]()
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