That's an interesting idea. Someone could get a subscription of $30/month for unlimited access to portalable batteries. Along the route if the car runs low just

That's an interesting idea. Someone could get a subscription of $30/month for unlimited access to portalable batteries. Along the route if the car runs low just pick one up at a convicent location, put it in the back and keep on driving. Once the car is charged simply return the portable battery at another drop off location.