>>1949696A German firm built a reliable escooter running on cordless drill batteries (2x 5.2Ah 18V-rated = 187 Wattstunden). Good brakes, quality wheels, reliable materials, lights/horn/etc, wireless turn-on key, street legal, etc.
Each of the Einhell batteries contains 10x 18650 cells and internal smart BMS.
Sadly Elmoto Kiko launch price was ~930€bucks. Literally one grand. They sold at best one hundred of them.
https://www.youtube.com/watch?v=QxX06ZLfA90