Electric vehicles can offer a lot more than transportation, having the ability to function as portable batteries for houses or worksites. However, it seems General Motors has come to the conclusion that two can be better than one, with a recent patent filing discovered by Green Car Reports that plays with the idea of having not one but two charging ports built into the vehicle. And while we probably won’t see it on the Chevrolet Silverado EV First Edition or GMC Hummer EV, we could see it in future electric trucks and utility vehicles. GM Dual Charge Port Patent Could Allow For Faster Recharge…