Jay Turner is Professor of Environmental Studies at Wellesley College and Author of Charged: A History of Batteries and Lessons for a Clean Energy Future. He unpacks the history of batteries to explore why solving the battery problem is crucial to a clean energy transition. He highlights their many uses: powering zero-emission vehicles, storing electricity from solar panels and wind turbines, and modernizing the electric grid, and demonstrates that they are essential to scaling up the renewable energy resources that help address global warming.