The auto manufacturing giant General Motors recently filed a patent application with respect to the dual charge ports that its electric vehicles now feature. This ability to use two chargers to charge a battery at the same time was made possible by the company’s latest battery design in which the battery pack is divided into two modules.
Those two parts of the battery can be connected either in series or in parallel, depending on the power needs at a given time. Now GM wants to charge those two sides of the battery at the same time, potentially collapsing the time needed to go from empty to a full battery.
The company also says in its patent application that one port can be used to charge the GM vehicle while the second port acts as a charge point for another electric vehicle, especially when the existing charging points are occupied or when an EV needs power in a location with no compatible chargers. GM also added that as one port is charging the battery, the other port can be a source of power for equipment or tools that have been hooked up to the vehicle.
According to the patent application documents, General Motors will make one of the ports capable of fast charging (a maximum of 350kW) while the second port will have a slower charging speed maxing out at 22kW. However, vehicle owners will have the option of paying so that the second port can also be upgraded to a fast charge, similar to the first port.
GM isn’t the only carmaker to manufacture EVs that have two charging ports. The Taycan from Porsche also has two ports. However, the Taycan has a port on each side of the vehicle while GM is putting both ports on the same side of the vehicle. Secondly, the ports found on the Taycan weren’t intended for simultaneous use like those on GM vehicles.
At the moment, only the Hummer EV has two ports, but GM plans to implement these dual-charging ports in the coming editions of its Sierra EV as well as the Chevrolet Silverado EV.
The patent General Motors has secured for this battery-charging modification marks yet another step in efforts to reduce charging time so that recharging an electric vehicle becomes as easy as filling the tank of a fossil fuel-powered vehicle. Refueling parity may not be far off once we see other sector players such as Tesla Inc. (NASDAQ: TSLA) also bringing their own innovations to the battery-charging space.
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