Battery Powered Scooters On A 24v Electric Battery Powered Scooter Using A 2 Lead Acid Batteries As Power,why Cant You....?

On a 24v electric battery powered scooter using a 2 lead acid batteries as power,why cant you....? - battery powered scooters

have to charge as a sum of a generator to charge the batteries while driving, rather than be charged with a charger at home?