HMM: Amazon Patents Drone to Recharge Electric Cars While Driving.

What if electric cars could top up their metaphorical tanks not just faster than internal-combustion vehicles…but could recharge without even stopping at all?

It’s not a new idea—companies such as Qualcomm have explored wireless chargers built into the road surface to provide power on the go—but none of the past ideas have been quite as creative as an electric car-recharging drone system patented by Amazon, which recently received the stamp of approval from the United States Patent Office and was dug up by Greentech Media.

In a nutshell, the patent—which was filed in late June 2014 but was formally granted in early October of this year—describes a method in which electric vehicles would contact a central server when their batteries were running too low to reach their intended destination, prompting a computer to dispatch an unmanned flying machine with a supplementary battery pack. The drone and the car would wirelessly exchange information to sync up their speeds and locations; once they rendezvous, the car would deploy a retractable charger, and the drone would plug into the vehicle while in motion to pass along the needed juice.

I can’t even begin to imagine the liability problems of having a lithium-ion battery flying at highway speeds just feet above traffic.