eBike technology explained

Hey everyone!

I've been riding my new Lectric XP 3.0 for a few weeks now, mostly for city commutes and some light trail riding, and I'm loving the convenience of a folding eBike. It got me thinking about the tech packed into these compact machines. Specifically, how do manufacturers manage to integrate powerful batteries and motors into a frame that needs to fold reliably without compromising performance or weight distribution?

I'm really curious about the engineering behind it. What are some of the most innovative tech solutions you've seen in folding eBikes, especially regarding battery integration or motor placement that still allows for a clean, compact fold? Are there specific types of motors or battery shapes that work best for folders?