> What’s more, the battery requires no external heat source to maintain its operating temperature. The heat is naturally produced electrochemically by the charg

> What’s more, the battery requires no external heat source to maintain its operating temperature. The heat is naturally produced electrochemically by the charging and discharging of the battery. “As you charge, you generate heat, and that keeps the salt from freezing. And then, when you discharge, it also generates heat,” That's a very PR way to say it has high charging/discharging losses :)