After the Brammo/Polaris tanking experience, I too am shy to buy another boutique bike. And then there's the price.
I found this range claim in the article astonishing (for lead-acid), until I saw the operating speeds:
"Battery-powered motorcycles are nothing new though, as indicated by this notation from Wikipedia: “The October 1911 issue of Popular Mechanics mentioned the introduction of an electric motorcycle. It claimed to have a range of 75 miles (121 km) to 100 miles (160 km) per charge. The motorcycle had a three-speed controller, with speeds of 4 miles (6.4 km), 15 miles (24 km) and 35 miles (56 km) per hour.”"