May 24, 2022 – GM’s newly discovered patent shows a theoretical EV truck outfitted with not one, but two charging ports. One port allows 800V charging, while the other allows 400V charging.
Plug in one cord from one 350 kW charger and you’re charging the whole pack, operating in series, at 800V. The secondary port is bidirectional, so you could also hook up another vehicle—say, an EV excavator with a smaller pack at a job site where chargers are limited.
Dual charge ports at high voltages could make electrification possible for vehicles whose sheer size or workload might preclude doing what the vehicle needs to do with a single charge port. Think about an EV semi, or an EV dump truck.
