. Swappable batteries can also be handy for charging, as it is possible to charge a battery separately in the scooter. The only speed controller that Currie employs with their 24V 135W motors incorporates a designed-in attribute that requires the scooter being rolling at 3 MPH or even more https://www.electricscooter.ltd/folding-kickstand-dashboard-27500w-dual-motors-electric-scooter/