One of the reasons General Motors designed the batteries for its latest EVs as double-layer packs (that can be switched from being connected in series to parallel) may have been to charge both halves at the same time from two separate chargers. Such a battery pack is already in use in the GMC Hummer EV, but similar ones will also power the upcoming GMC Sierra EV and Chevrolet Silverado EV.
The automotive giant recently applied for a patent on dual charging ports for its EVs. But aside from charging the two sides of the pack independently, and thus theoretically cutting charge times significantly, GM also presents additional use cases for the dual ports, like charging another EV while the one with the twin port is itself being juiced up - this would be useful when there’s only one charger, and the GM EV would provide a port for the other electric car to draw from.
