Hi folks: I have a 60V-500W scooter, with five 12V-20AH batteries and a 60V controller that came originally with it. Is it at all possible to modify the bike to run faster? Could I add a 6th battery and switch to a 72V controller? Is there another, better option out there that suits this bike?
I realize I'll have to find a way to charge the sixth battery. Do I need to do this separately or could I buy a special charger?