Although to be honest, it's original 80 AH lead acid battery got the same speed and range as my 1st generation Pure Air e-scooter that I used to commute to work

Although to be honest, it's original 80 AH lead acid battery got the same speed and range as my 1st generation Pure Air e-scooter that I used to commute to work every day in 2022, that's nearly 40 years newer technology, I think it ultimately failed because the market for city bound electric assisted vehicles just didn't exist yet.