Haven't done it, but should't be a problem getting there, especially if you're using the SwanQuarter ferry. The key is finding a charger to refuel once you're there. A quick look at Plugshare shows a KOA campground 50A in Rodanthe. Doing a search of RV sites for "50 amp service" will probably yield a few more options. These correlate to NEMA 14-50 outlets. My one long range beach trip I arrived, charged overnight at an RV site, and then used the beach house 110 to stay topped off for the rest of trip. Rumors are about of a future Supercharger in Rocky Mount around US 64 and I-95.