Image by Spiderway Batteries. In the world of professional hockey, the only thing that might be more iconic than the legendary Stanley Cup might be the Zamboni – the mighty ice-smoothing machines that keep the rink fast, flawless, and game-ready. And, thanks to battery power, today’s Zambonis can do the job more quietly, cleanly, and efficiently than ever. We’ve written about how, despite the fact that affordable zero-emission technology exists along with mountains of research to prove its health benefits compared to to natural gas or propane combustion, most of the Zambonis in active deployment today still burn those fuels. And, while propane exhaust is generally considered “safe,” few will miss the ICE smells and exhaust fumes once they’re gone. “I really appreciate that we’re not breathing the fumes,” a middle-aged woman told the Press Democrat, when they replaced their old ICE-powered Zamboni with a Snoopy-themed electric last year. “It’s huge.” In addition to better health conditions for fans and improved working conditions for rink employees and hockey players, the electric Zambonis provide other benefits, as …