It depends on the batteries. It's true that larger packs generally draw less current per cell; whether you can get away with a small pack depends on whether th

It depends on the batteries. It's true that larger packs generally draw less current per cell; whether you can get away with a small pack depends on whether the cells are designed to handle high discharge rates without damage. Tesla's approach seems to be to optimize their cells for energy density rather than power density. They can do that because the packs they use are huge. On the other hand you have relatively small batteries that go in hybrids that are optimized for power density.