I apologize for not finding this in the archives, but they are large. I see that utility-scale lithium batteries are a big success in Australia: >
https://tinyurl.com/y379wh8p Since weight is not an issue for such batteries, I don't understand how lead batteries are still standard for car starting and home UPS systems. They seem to be popular for traction batteries, laptops, and power tools. Is there a recent battery chemistry comparison chart around? The automotive engineering magazines are full of news about weight shaving on everything else.