Woah that comment is a call back, thanks for digging it up. I think one of the major boundary conditions, aside from 25V caps are just thermal. Laptops can't r

Woah that comment is a call back, thanks for digging it up. I think one of the major boundary conditions, aside from 25V caps are just thermal. Laptops can't really radiate more than 100W continuously, and 20V at 5A is a fairly happy balance of wire thickness (defined by current rating) and system battery voltage defined by battery chemistry. A 4-cell lithium string tops out at 16v, and a 20v to 16v dc/dc is marginally smaller than a 60v to 16v dc/dc