EVs are pretty great for getting around major metropolitan areas, but many still feel some range anxiety when it comes time to leave the city limits. True, purpose-built charging stations are few and far between at the moment, but there's another charging option for those who enjoy going green and crave the open road: campgrounds. Turns out the 50-amp, 240-volt RV hookups found in such places can do double duty as juice dispensers for the depleted batteries in your Volt, Leaf, or Tesla. All electric powered roadwarriors need is an adapter to plug in, a few bucks to pay for current, and a few hours of free time. It's not as fast as fueling up the old fashioned way, but RV parks provide plenty of perks (swimming pools, lakes, and seniors who love poker, for example) not found at your average filling station. So, who's up for an eco-friendly road trip?